Document:

EX-4.7

 Exhibit 4.7 

EXECUTION VERSION 
  

 
  

REVOLVING CREDIT AGREEMENT 
 (2017-1B) 
 Dated as of November 28, 2017 

between 
 WILMINGTON TRUST,
NATIONAL ASSOCIATION, 
 as Subordination Agent, 

as agent and trustee for the trustee of 

Spirit Airlines Pass Through Trust 2017-1B, 

as Borrower 
 and 

COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH, 

as Liquidity Provider 
 Spirit
Airlines Pass Through Trust 2017-1B 
 Spirit Airlines 

Pass Through Certificates, 
 Series 2017-1B 
  
  

 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Table of Contents 

 

							
	
	 Page
	 
		
	 ARTICLE I DEFINITIONS
	  	 	1	 
			
	 Section 1.01
	  	Definitions	  	 	1	 
		
	 ARTICLE II AMOUNT AND TERMS OF THE COMMITMENT
	  	 	11	 
			
	 Section 2.01
	  	The Advances	  	 	11	 
			
	 Section 2.02
	  	Making of Advances	  	 	11	 
			
	 Section 2.03
	  	Fees	  	 	13	 
			
	 Section 2.04
	  	Reduction or Termination of the Maximum Commitment	  	 	13	 
			
	 Section 2.05
	  	Repayments of Interest Advances, the Special Termination Advance or the Final Advance	  	 	14	 
			
	 Section 2.06
	  	Repayments of Provider Advances	  	 	15	 
			
	 Section 2.07
	  	Payments to the Liquidity Provider Under the Intercreditor Agreement	  	 	16	 
			
	 Section 2.08
	  	Book Entries	  	 	16	 
			
	 Section 2.09
	  	Payments from Available Funds Only	  	 	16	 
			
	 Section 2.10
	  	Extension of the Expiry Date; Non-Extension Advance	  	 	17	 
		
	 ARTICLE III OBLIGATIONS OF THE BORROWER
	  	 	17	 
			
	 Section 3.01
	  	Increased Costs	  	 	17	 
			
	 Section 3.02
	  	Reserved	  	 	19	 
			
	 Section 3.03
	  	Withholding Taxes	  	 	19	 
			
	 Section 3.04
	  	Payments	  	 	21	 
			
	 Section 3.05
	  	Computations	  	 	21	 
			
	 Section 3.06
	  	Payment on Non-Business Days	  	 	21	 

  

					
		  	i	  	 Revolving Credit Agreement (Class B)

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	 Section 3.07
	  	Interest	  	 	21	 
			
	 Section 3.08
	  	Replacement of Borrower	  	 	23	 
			
	 Section 3.09
	  	Funding Loss Indemnification	  	 	23	 
			
	 Section 3.10
	  	Illegality	  	 	24	 
		
	 ARTICLE IV CONDITIONS PRECEDENT
	  	 	24	 
			
	 Section 4.01
	  	Conditions Precedent to Effectiveness of Section 2.01	  	 	24	 
			
	 Section 4.02
	  	Conditions Precedent to Borrowing	  	 	26	 
		
	 ARTICLE V COVENANTS
	  	 	26	 
			
	 Section 5.01
	  	Affirmative Covenants of the Borrower	  	 	26	 
			
	 Section 5.02
	  	Negative Covenants of the Borrower	  	 	27	 
		
	 ARTICLE VI LIQUIDITY EVENTS OF DEFAULT AND SPECIAL TERMINATION
	  	 	27	 
			
	 Section 6.01
	  	Liquidity Events of Default	  	 	27	 
		
	 ARTICLE VII MISCELLANEOUS
	  	 	28	 
			
	 Section 7.01
	  	No Oral Modifications or Continuing Waivers	  	 	28	 
			
	 Section 7.02
	  	Notices	  	 	28	 
			
	 Section 7.03
	  	No Waiver; Remedies	  	 	29	 
			
	 Section 7.04
	  	Further Assurances	  	 	29	 
			
	 Section 7.05
	  	Indemnification; Survival of Certain Provisions	  	 	29	 
			
	 Section 7.06
	  	Liability of the Liquidity Provider	  	 	30	 
			
	 Section 7.07
	  	Certain Costs and Expenses	  	 	30	 
			
	 Section 7.08
	  	Binding Effect; Participations	  	 	31	 
			
	 Section 7.09
	  	Severability	  	 	33	 
			
	 Section 7.10
	  	Governing Law	  	 	33	 

  

					
		  	ii	  	 Revolving Credit Agreement (Class B)

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	 Section 7.11
	  	Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity	  	 	33	 
			
	 Section 7.12
	  	Counterparts	  	 	34	 
			
	 Section 7.13
	  	Entirety	  	 	34	 
			
	 Section 7.14
	  	Headings	  	 	34	 
			
	 Section 7.15
	  	Liquidity Provider’s Obligation to Make Advances	  	 	34	 
			
	 Section 7.16
	  	Head Office Obligations	  	 	34	 

  

			
	Annex I	  	- Form of Interest Advance Notice of Borrowing
	Annex II	  	- Form of Non-Extension Advance Notice of Borrowing
	Annex III	  	- Form of Downgrade Advance Notice of Borrowing
	Annex IV	  	- Form of Final Advance Notice of Borrowing
	Annex V	  	- Form of Special Termination Advance Notice of Borrowing
	Annex VI	  	- Form of Notice of Termination
	Annex VII	  	- Form of Notice of Special Termination
	Annex VIII	  	- Form of Notice of Replacement Subordination Agent

  

					
		  	iii	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 REVOLVING CREDIT AGREEMENT 

(2017-1B) 

This REVOLVING CREDIT AGREEMENT (2017-1B), dated as of November 28, 2017, is made by and between
WILMINGTON TRUST, NATIONAL ASSOCIATION, a national banking association, not in its individual capacity but solely as Subordination Agent (such term and other capitalized terms used herein without definition being defined as provided in Article I)
under the Intercreditor Agreement (as defined below), as agent and trustee for the Class B Trustee (in such capacity, together with its successors in such capacity, the “Borrower”), and COMMONWEALTH BANK OF AUSTRALIA,
NEW YORK BRANCH, an Australian corporation acting through its New York Branch (the “Liquidity Provider”). 
 W
I T N E S S E T H: 
 WHEREAS, pursuant to the Class B Trust Agreement,
the Class B Trust is issuing the Class B Certificates; and 
 WHEREAS, the Borrower, in order to support the timely payment of a
portion of the interest on the Class B Certificates in accordance with their terms, has requested the Liquidity Provider to enter into this Agreement, providing in part for the Borrower to request in specified circumstances that Advances be
made hereunder; 
 NOW, THEREFORE, in consideration of the mutual agreements herein contained, and of other good and valuable consideration
the receipt and adequacy of which are hereby acknowledged, the parties hereto agree as follows: 
 ARTICLE I 

DEFINITIONS 
 Section 1.01
Definitions. (a) The definitions stated herein apply equally to both the singular and the plural forms of the terms defined. 

(b) All references in this Agreement to designated “Articles”, “Sections”, “Annexes” and other subdivisions are
to the designated Article, Section, Annex or other subdivision of this Agreement, unless otherwise specifically stated. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

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 (c) The words “herein”, “hereof” and “hereunder” and other words of
similar import refer to this Agreement as a whole and not to any particular Article, Section, Annex or other subdivision. 
 (d) Unless the
context otherwise requires, whenever the words “including”, “include” or “includes” are used herein, it shall be deemed to be followed by the phrase “without limitation”. 

(e) All references in this Agreement to a Person shall include successors and permitted assigns of such Person. 

(f) For the purposes of this Agreement, unless the context otherwise requires, the following capitalized terms shall have the following
meanings: 
 “Advance” means an Interest Advance, a Final Advance, a Provider Advance, an Unapplied Provider
Advance, an Applied Provider Advance, a Special Termination Advance, an Unapplied Special Termination Advance, an Applied Special Termination Advance or an Unpaid Advance, as the case may be. 

“Agreement” means this Agreement, as the same may be amended, supplemented or otherwise modified from time to time in
accordance with its terms. 
 “Applicable Liquidity Rate” has the meaning specified in Section 3.07(h). 

“Applicable Margin” means (a) with respect to any Interest Advance, Final Advance, Applied Provider Advance or
Applied Special Termination Advance, 3.25% per annum, (b) with respect to any Unapplied Provider Advance, the rate per annum specified in the Fee Letter or (c) with respect to any Unapplied Special Termination Advance, the rate per annum
specified in the Fee Letter. 
 “Applied Downgrade Advance” has the meaning specified in Section 2.06(a). 

“Applied Non-Extension Advance” has the meaning specified in
Section 2.06(a). 
 “Applied Provider Advance” means an Applied Downgrade Advance or an Applied Non-Extension Advance. 

  

					
		  	2	  	 Revolving Credit Agreement (Class B)

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 “Applied Special Termination Advance” has the meaning specified in
Section 2.05. 
 “Base Rate” means a fluctuating interest rate per annum in effect from time to time, which
rate per annum shall at all times be equal to the sum of (a) the weighted average of the rates on overnight Federal funds transactions with members of the Federal Reserve System arranged by Federal funds brokers, as published for each day in
the period for which the Base Rate is to be determined (or, if such day is not a Business Day, for the preceding Business Day) by the Federal Reserve Bank of New York, or if such rate is not so published for any day that is a Business Day, the
average of the quotations for such day for such transactions received by the Liquidity Provider from three Federal funds brokers of recognized standing selected by it (and reasonably satisfactory to Spirit) plus
(b) one-quarter of one percent (0.25%). 
 “Base Rate Advance” means an
Advance that bears interest at a rate based upon the Base Rate. 
 “Borrower” has the meaning specified in the
introductory paragraph to this Agreement. 
 “Borrowing” means the making of Advances requested by delivery of a
Notice of Borrowing. 
 “Business Day” means any day other than a Saturday, a Sunday or a day on which commercial
banks are required or authorized to close in New York, New York, Miramar, Florida, Wilmington, Delaware, or, so long as any Class B Certificate is outstanding, the city and state in which the Class B Trustee, the Borrower or any related
Loan Trustee maintains its Corporate Trust Office or receives or disburses funds, and, if the applicable Business Day relates to any Advance or other amount bearing interest based on the LIBOR Rate, on which dealings are carried on in the London
interbank market. 
 “Code” means the United States Internal Revenue Code of 1986, as amended. 

“Covered Taxes” means any Taxes imposed by the United States, or any political subdivision or taxing authority thereof
or therein, that are required by law to be deducted or withheld from any amounts payable to the Liquidity Provider under this Agreement other than (i) any such Tax on, based on or measured by net income, franchises or conduct of business,
(ii) any such Tax imposed, levied, withheld or assessed as a result of any connection between the Liquidity Provider and the United States or such political subdivision or taxing authority, other than a connection arising solely from the
Liquidity Provider’s having executed, delivered, performed its obligations or received a payment under, or enforced, any Operative Agreement, (iii) any such Tax attributable to the inaccuracy in or breach by the Liquidity Provider of any
of its representations, warranties or covenants contained in any Operative Agreement to which it is a party or the inaccuracy of any form, certificate or document furnished pursuant thereto, 

  

					
		  	3	  	 Revolving Credit Agreement (Class B)

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(iv) any such withholding Taxes imposed by the United States, except to the extent such withholding Taxes are the result of a change in law after such Liquidity Provider became a Liquidity
Provider hereunder, (v) any withholding Taxes imposed by the United States which are imposed or increased as a result of the Liquidity Provider failing to deliver to the Borrower any form, certificate or document (which form, certificate or
document, in the good faith judgment of the Liquidity Provider, it is legally entitled to provide) which is reasonably requested by the Borrower to establish that payments under this Agreement are exempt from (or entitled to a reduced rate of) any
such withholding Tax, (vi) any such Taxes that would not have been imposed but for any change in the Lending Office without the prior written consent of Spirit (such consent not to be unreasonably withheld), or (vii) any Taxes imposed
under FATCA. 
 “Downgrade Advance” means an Advance made pursuant to Section 2.02(b)(ii). 

“Downgrade Event” means any downgrading of, or any suspension or withdrawal of any applicable rating of, the Liquidity
Provider by any Rating Agency such that after such downgrading, suspension or withdrawal the Liquidity Provider does not have the minimum Long-Term Rating specified for such Rating Agency in the definition of “Threshold Rating”. The
occurrence of a Downgrade Event shall be determined separately for each Rating Agency. 
 “Effective Date” has the
meaning specified in Section 4.01. The delivery of the certificate of the Liquidity Provider contemplated by Section 4.01(e) shall be conclusive evidence that the Effective Date has occurred. 

“Excluded Taxes” means (a) Taxes imposed on the overall net income of the Liquidity Provider, (b) Taxes
imposed on the “effectively connected income” of its Lending Office, (c) Covered Taxes that are indemnified pursuant to Section 3.03 hereof, and (d) Taxes described in clauses (i) through (vii) in the definition of
“Covered Taxes”. 
 “Expenses” means liabilities, losses, damages, costs and expenses
(including, without limitation, reasonable fees and disbursements of legal counsel), provided that Expenses shall not include any Taxes other than sales, use and V.A.T. taxes imposed on fees and expenses payable pursuant to Section 7.07.

 “Expiry Date” means the earlier of (a) the anniversary date of the Closing Date immediately following the
date on which the Liquidity Provider has provided a Non-Extension Notice to the Borrower pursuant to Section 2.10 and (b) the 15th day after the
Final Legal Distribution Date of the Class B Certificates. 
 “FATCA” means Sections 1471 through 1474 of the
Code as of the date of this Agreement (or any amended or successor provisions that are substantively comparable and not 

  

					
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materially more onerous to comply with); any current or future regulations or official interpretations thereof; any agreements entered into pursuant to Section 1471(b)(1) of the Code; any
intergovernmental agreement entered into in connection with any of the foregoing; and any fiscal or regulatory legislation, rules or practices adopted pursuant to any such intergovernmental agreement. 

“Final Advance” means an Advance made pursuant to Section 2.02(c). 

“Head Office” has the meaning specified in Section 7.16. 

“Increased Cost” has the meaning specified in Section 3.01. 

“Intercreditor Agreement” means the Intercreditor Agreement, dated as of the date hereof, among the Trustees, the
Liquidity Provider, the liquidity provider under each Liquidity Facility (other than this Agreement), and the Subordination Agent, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Interest Advance” means an Advance made pursuant to Section 2.02(a). 

“Interest Period” means, with respect to any LIBOR Advance, each of the following periods: 

(i) the period beginning on the third Business Day following either (A) the Liquidity Provider’s receipt of the
Notice of Borrowing for such LIBOR Advance or (B) the date of the withdrawal of funds from the Class B Cash Collateral Account for the purpose of paying interest on the Class B Certificates as contemplated by Section 2.06(a)
hereof and, in each case, ending on the next succeeding Regular Distribution Date; and 
 (ii) each subsequent period
commencing on the last day of the immediately preceding Interest Period and ending on the next succeeding Regular Distribution Date; 
 provided,
however, that if (x) the Final Advance shall have been made pursuant to Section 2.02(c) or (y) other outstanding Advances shall have been converted into the Final Advance pursuant to Section 6.01(a), then the Interest
Periods shall be successive periods of one month beginning on (A) the third Business Day following the Liquidity Provider’s receipt of the Notice of Borrowing for such Final Advance (in the case of clause (x) above) or (B) the
Regular Distribution Date following such conversion (in the case of clause (y) above). 

  

					
		  	5	  	 Revolving Credit Agreement (Class B)

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 “Lending Office” means the lending office of the Liquidity Provider
through which it acts for purposes of this Agreement, which is presently located at 599 Lexington Avenue, New York, NY 10022, or such other lending office as the Liquidity Provider from time to time shall notify the Borrower as its lending office
hereunder; provided that the Liquidity Provider shall not change its Lending Office without the prior written consent of Spirit (such consent not to be unreasonably withheld). 

“LIBOR Advance” means an Advance bearing interest at a rate based upon the LIBOR Rate. 

“LIBOR Rate” means, with respect to any Interest Period, (a) the interest rate per annum equal to the London
Interbank Offered Rate per annum administered by ICE Benchmark Administration Limited (or any other successor person which takes over administration of that rate) for Dollar deposits, which rate is displayed on the Reuters Screen LIBOR01 (or such
other page or screen as may replace such Reuters Screen) at approximately 11:00 a.m. (London time) on the day that is two Business Days prior to the first day of such Interest Period, for a period comparable to such Interest Period, or
(b) if no such rate is available on such Reuters Screen (or otherwise as aforesaid), the interest rate per annum equal to the average (rounded up, if necessary, to the nearest 1/100th of 1%) of the rates per annum at which deposits in Dollars
are offered by the Reference Banks (or, if fewer than all of the Reference Banks are quoting a rate for deposits in Dollars for the applicable period and amount, such fewer number of Reference Banks) at approximately 11:00 a.m. (London time) on
the day that is two Business Days prior to the first day of such Interest Period to prime banks in the London interbank market for a period comparable to such Interest Period and in an amount approximately equal to the principal amount of the LIBOR
Advance to be outstanding during such Interest Period, or (c) if none of the Reference Banks is quoting a rate for deposits in Dollars in the London interbank market for such a period and amount, the interest rate per annum equal to the average
(rounded up, if necessary, to the nearest 1/100th of 1%) of the rates at which deposits in Dollars are offered by the principal New York offices of the Reference Banks (or, if fewer than all of the Reference Banks are quoting a rate for deposits in
Dollars in the New York interbank market for the applicable period and amount, such fewer number of Reference Banks) at approximately 11:00 a.m. (New York time) on the day that is two Business Days prior to the first day of such Interest Period
to prime banks in the New York interbank market for a period comparable to such Interest Period and in an amount approximately equal to the principal amount of the LIBOR Advance to be outstanding during such Interest Period, or (d) if none of
the principal New York offices of the Reference Banks is quoting a rate for deposits in Dollars in the New York interbank market for the applicable period and amount, the Base Rate; provided that, if the LIBOR Rate determined as provided
above with respect to any LIBOR Advance for any Interest Period would be less than zero per annum, the LIBOR Rate shall be deemed to be zero. 

“Liquidity Event of Default” means the occurrence of either (a) the Acceleration of all of the Equipment Notes
(provided that, with respect to the period prior to the Delivery Period 

  

					
		  	6	  	 Revolving Credit Agreement (Class B)

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Termination Date, the aggregate principal balance of such Equipment Notes is in excess of $250 million) or (b) a Spirit Bankruptcy Event. 

“Liquidity Indemnitee” means the Liquidity Provider, its directors, officers, employees and agents, and its successors
and permitted assigns. 
 “Liquidity Provider” has the meaning specified in the introductory paragraph to this
Agreement. 
 “Maximum Available Commitment” means, subject to the proviso contained in the third sentence of
Section 2.02(a), at any time of determination, (a) the Maximum Commitment at such time less (b) the aggregate amount of each Interest Advance outstanding at such time; provided that, subject to Section 2.06(d), following a
Provider Advance, a Special Termination Advance or a Final Advance, the Maximum Available Commitment shall be zero. 
 “Maximum
Commitment” means $5,928,908, as the same may be reduced from time to time in accordance with Section 2.04(a). 

“Non-Extension Advance” means an Advance made pursuant to
Section 2.02(b)(i). 
 “Non-Extension Notice” has the meaning specified
in Section 2.10. 
 “Notice Date” has the meaning specified in Section 2.10. 

“Notice of Borrowing” has the meaning specified in Section 2.02(e). 

“Notice of Replacement Subordination Agent” has the meaning specified in Section 3.08. 

“Participation” has the meaning specified in Section 7.08(b). 

“Performing Note Deficiency” means any time that less than 65% of the then aggregate outstanding principal amount of
all Series AA Equipment Notes, Series A Equipment Notes and Series B Equipment Notes are Performing Equipment Notes. 

“Permitted Transferee” means any Person that: 

  

					
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 (a) is not a commercial air carrier, Spirit or any affiliate of Spirit; and 

(b) is any one of: 

(1) a commercial banking institution organized under the laws of the United States or any state thereof or the District of
Columbia; 
 (2) a commercial banking institution that (x) is organized under the laws of France, Germany, The
Netherlands, Switzerland or the United Kingdom, (y) is entitled on the date it acquires any Participation to a complete exemption from United States federal income taxes for all income derived by it from the transactions contemplated by the
Operative Agreements under an income tax treaty, as in effect on such date, between the United States and such jurisdiction of its organization and (z) is engaged in the active conduct of a banking business in such jurisdiction of its
organization, holds its Participation in connection with such banking business in such jurisdiction and is regulated as a commercial banking institution by the appropriate regulatory authorities in such jurisdiction; or 

(3) a commercial banking institution that (x) is organized under the laws of Canada, France, Germany, Ireland, Japan,
Luxembourg, The Netherlands, Sweden, Switzerland or the United Kingdom and (y) is entitled on the date it acquires any Participation to a complete exemption from withholding of United States federal income taxes for all income derived by it
from the transactions contemplated by the Operative Agreements under laws as in effect on such date by reason of such income being effectively connected with the conduct of a trade or business within the United States. 

“Prospectus Supplement” means the Prospectus Supplement, dated November 13, 2017, relating to the Class AA
Certificates, the Class A Certificates and the Class B Certificates, as such Prospectus Supplement may be amended or supplemented. 

“Provider Advance” means a Downgrade Advance or a Non-Extension Advance. 

“Rate Determination Notice” has the meaning specified in Section 3.07(g). 

“Reference Banks” means the principal London offices of: Commonwealth Bank of Australia; Deutsche Bank AG; and JP
Morgan Chase Bank, N.A.; and such other or additional banking institutions as may be designated from time to time by mutual agreement of Spirit and the Liquidity Provider. 

  

					
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 “Regulatory Change” means (x) the enactment, adoption or
promulgation, after the date of this Agreement, of any law or regulation by a United States federal or state government or by any government having jurisdiction over the Liquidity Provider, or any change, after the date of this Agreement, in any
such law or regulation, or in the interpretation thereof by any governmental authority, central bank or comparable agency of the United States or any government having jurisdiction over the Liquidity Provider charged with responsibility for the
administration or application thereof, that shall impose, modify or deem applicable, or (y) the compliance by the Liquidity Provider (or its Head Office) with any applicable direction or requirement (whether or not having the force of law) of
any central bank or competent governmental or other authority, after the date of this Agreement, with respect to: (a) any reserve, special deposit or similar requirement against extensions of credit or other assets of, or deposits with or other
liabilities of, the Liquidity Provider including, or by reason of, the Advances, or (b) any capital adequacy requirement requiring the maintenance by the Liquidity Provider of additional capital in respect of any Advances or the Liquidity
Provider’s obligation to make any such Advances, or (c) any requirement to maintain liquidity or liquid assets in respect of the Liquidity Provider’s obligation to make any such Advances, or (d) any Taxes (other than Excluded
Taxes) with respect to the amounts payable or paid hereunder to the Liquidity Provider or any change in the basis of taxation of any amounts payable hereunder to the Liquidity Provider (other than in respect of Excluded Taxes). 

“Replenishment Amount” has the meaning specified in Section 2.06(b). 

“Required Amount” means, for any day, the sum of the aggregate amount of interest, calculated at the rate per annum
equal to the Stated Interest Rate for the Class B Certificates on the basis of a 360-day year comprised of twelve 30-day months, that would be distributable on the
Class B Certificates on each of the three successive semiannual Regular Distribution Dates immediately following such day or, if such day is a Regular Distribution Date, on such day and the succeeding two semiannual Regular Distribution Dates,
in each case calculated on the basis of the Pool Balance of the Class B Certificates on such day and without regard to expected future distributions of principal on the Class B Certificates. 

“Special Termination Advance” means an Advance made pursuant to Section 2.02(d). 

“Special Termination Notice” means the Notice of Special Termination substantially in the form of
Annex VII to this Agreement. 
 “Termination Date” means the earliest to occur of the
following: (i) the Expiry Date; (ii) the date on which the Borrower delivers to the Liquidity Provider a certificate, signed by a Responsible Officer of the Borrower, certifying that all of the Class B Certificates have been paid in
full (or provision has been made for such payment in accordance with the Intercreditor Agreement and the Class B Trust Agreement) or are otherwise no longer entitled to the benefits 

  

					
		  	9	  	 Revolving Credit Agreement (Class B)

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of this Agreement; (iii) the date on which the Borrower delivers to the Liquidity Provider a certificate, signed by a Responsible Officer of the Borrower, certifying that a Replacement
Liquidity Facility has been substituted for this Agreement in full pursuant to Section 3.05(e) of the Intercreditor Agreement; (iv) the fifth Business Day following the receipt by the Borrower of a Termination Notice or a Special
Termination Notice from the Liquidity Provider pursuant to Section 6.01(a) or 6.01(b), as applicable; and (v) the date on which no Advance is or may (including by reason of reinstatement as herein provided) become available for a Borrowing
hereunder. 
 “Termination Notice” means the Notice of Termination substantially in the form of Annex VI to
this Agreement. 
 “Unapplied Advance” has the meaning specified in Section 3.07(e). 

“Unapplied Downgrade Advance” means the portion of any Downgrade Advance that is not an Applied Downgrade Advance.

 “Unapplied Non-Extension Advance” means the portion of any Non-Extension Advance that is not an Applied Non-Extension Advance. 

“Unapplied Provider Advance” means the portion of any Provider Advance that is not an Applied Provider Advance. 

“Unapplied Special Termination Advance” means the portion of any Special Termination Advance that is not an Applied
Special Termination Advance. 
 “Unpaid Advance” has the meaning specified in Section 2.05. 

For the purposes of this Agreement, the following terms shall have the respective meanings specified in the Intercreditor Agreement: 

“Acceleration”, “Additional Certificates”, “Aircraft”, “Certificate”, “Class A
Certificates”, “Class AA Certificates”, “Class B Cash Collateral Account”, “Class B Certificates”, “Class B Certificateholders”, “Class B Trust”, “Class B
Trust Agreement”, “Class B Trustee”, “Closing Date”, “Collection Account”, “Corporate Trust Office”, “Delivery Period Termination Date”, “Distribution Date”, “Dollars”,
“Downgrade Drawing”, “Downgraded Facility”, “Equipment Notes”, “Fee Letter”, “Final Legal Distribution Date”, “Indenture”, “Interest Payment Date”, “Investment
Earnings”, “Liquidity Facility”, “Loan Trustee”, “Long-

  

					
		  	10	  	 Revolving Credit Agreement (Class B)

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Term Rating”, “Non-Extended Facility”, “Note Purchase Agreement”, “Operative Agreements”, “Participation
Agreements”, “Performing Equipment Note”, “Person”, “Pool Balance”, “Rating Agencies”, “Regular Distribution Date”, “Replacement Liquidity Facility”, “Responsible Officer”,
“Scheduled Payment”, “Series A Equipment Notes”, “Series AA Equipment Notes”, “Series B Equipment Notes”, “Special Payment”, “Spirit”, “Spirit Bankruptcy Event”, “Stated
Interest Rate”, “Subordination Agent”, “Taxes”, “Threshold Rating”, “Treasury Regulations”, “Trust Agreement”, “Trustee”, “Underwriters”, “Underwriting Agreement”,
and “United States”. 
 ARTICLE II 

AMOUNT AND TERMS OF THE COMMITMENT 

Section 2.01 The Advances. The Liquidity Provider hereby irrevocably agrees, on the terms and conditions hereinafter set forth, to
make Advances to the Borrower from time to time on any Business Day during the period from the Effective Date until 12:00 noon (New York City time) on the Expiry Date (unless the obligations of the Liquidity Provider shall be earlier terminated in
accordance with the terms of Section 2.04(b)) in an aggregate amount at any time outstanding not to exceed the Maximum Commitment. 

Section 2.02 Making of Advances. (a) Each Interest Advance shall be made by the Liquidity Provider upon delivery to the
Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex I, signed by a Responsible Officer of the Borrower, such Interest Advance to be in an amount not exceeding the Maximum Available Commitment
at such time and used solely for the payment when due of interest with respect to the Class B Certificates at the Stated Interest Rate therefor in accordance with Section 3.05(a) and 3.05(b) of the Intercreditor Agreement. Each Interest
Advance made hereunder shall automatically reduce the Maximum Available Commitment and the amount available to be borrowed hereunder by subsequent Advances by the amount of such Interest Advance (subject to reinstatement as provided in the next
sentence). Upon repayment to the Liquidity Provider in full or in part of the amount of any Interest Advance made pursuant to this Section 2.02(a), together with accrued interest thereon (as provided herein), the Maximum Available Commitment
shall be reinstated by an amount equal to the amount of such Interest Advance so repaid, but not to exceed the Maximum Commitment; provided, however, that the Maximum Available Commitment shall not be so reinstated at any time if
(x) both a Performing Note Deficiency exists and a Liquidity Event of Default shall have occurred and be continuing or (y) a Final Advance, a Downgrade Advance, a Non-Extension Advance or a Special
Termination Advance shall have occurred, except as provided in Section 2.06(d) with respect to a Downgrade Drawing. 
 (b) (i) A Non-Extension Advance shall be made by the Liquidity Provider in a single Borrowing if this Agreement is not extended in accordance with Section 3.05(d) of the Intercreditor Agreement unless a Replacement
Liquidity Facility to replace this Agreement shall 

  

					
		  	11	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
have been previously delivered to the Borrower in accordance with said Section 3.05(d), upon delivery to the Liquidity Provider of a written and completed Notice of Borrowing in
substantially the form of Annex II, signed by a Responsible Officer of the Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used to fund the Class B Cash Collateral Account in accordance with
Sections 3.05(d) and 3.05(f) of the Intercreditor Agreement. 
 (ii) A Downgrade Advance shall be made by the Liquidity
Provider in a single Borrowing upon this Liquidity Facility becoming a Downgraded Facility (as provided for in Section 3.05(c) of the Intercreditor Agreement) unless a Replacement Liquidity Facility to replace this Agreement shall have been
previously delivered to the Borrower in accordance with said Section 3.05(c), upon delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex III, signed by a Responsible Officer
of the Borrower, in an amount equal to the Maximum Available Commitment at such time, and shall be used to fund the Class B Cash Collateral Account in accordance with Sections 3.05(c) and 3.05(f) of the Intercreditor Agreement. 

(c) A Final Advance shall be made by the Liquidity Provider in a single Borrowing following the receipt by the Borrower of a Termination Notice
from the Liquidity Provider pursuant to Section 6.01(a) upon delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex IV, signed by a Responsible Officer of the Borrower, in an
amount equal to the Maximum Available Commitment at such time, and shall be used to fund the Class B Cash Collateral Account in accordance with Sections 3.05(f) and 3.05(i) of the Intercreditor Agreement. 

(d) A Special Termination Advance shall be made in a single Borrowing upon the receipt by the Borrower of a Special Termination Notice from the
Liquidity Provider pursuant to Section 6.01(b), by delivery to the Liquidity Provider of a written and completed Notice of Borrowing in substantially the form of Annex V, signed by a Responsible Officer of the Borrower, in an amount
equal to the Maximum Available Commitment at such time, and shall be used to fund the Class B Cash Collateral Account in accordance with Section 3.05(f) and Section 3.05(k) of the Intercreditor Agreement. 

(e) Each Borrowing shall be made by notice in writing (a “Notice of Borrowing”) in substantially the form required by
Section 2.02(a), 2.02(b), 2.02(c) or 2.02(d), as the case may be, given by the Borrower to the Liquidity Provider. If a Notice of Borrowing is delivered by the Borrower in respect of any Borrowing no later than 12:30 p.m. (New York City
time) on a Business Day, upon satisfaction of the conditions precedent set forth in Section 4.02 with respect to such requested Borrowing, the Liquidity Provider shall make available to the Borrower, in accordance with its payment instructions,
the amount of such Borrowing in Dollars and immediately available funds, before 4:00 p.m. (New York City time) on such Business Day or before 12:30 p.m. (New York City time) on such later Business Day specified in such Notice

  

					
		  	12	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
of Borrowing. If a Notice of Borrowing is delivered by the Borrower in respect of any Borrowing after 12:30 p.m. (New York City time) on a Business Day, upon satisfaction of the conditions
precedent set forth in Section 4.02 with respect to such requested Borrowing, the Liquidity Provider shall make available to the Borrower, in accordance with its payment instructions, the amount of such Borrowing in Dollars and immediately
available funds, before 1:00 p.m. (New York City time) on the first Business Day next following the day of receipt of such Notice of Borrowing or on such later Business Day specified by the Borrower in such Notice of Borrowing. Payments of
proceeds of a Borrowing shall be made by wire transfer of immediately available funds to the Borrower in accordance with such wire transfer instructions as the Borrower shall furnish from time to time to the Liquidity Provider for such purpose. Each
Notice of Borrowing shall be irrevocable and binding on the Borrower. Each Notice of Borrowing shall be effective upon delivery of a copy thereof to the Liquidity Provider at the address and in the manner specified in Section 7.02 hereof. 

(f) Upon the making of any Advance requested pursuant to a Notice of Borrowing in accordance with the Borrower’s payment instructions, the
Liquidity Provider shall be fully discharged of its obligation hereunder with respect to such Notice of Borrowing, and the Liquidity Provider shall not thereafter be obligated to make any further Advances hereunder in respect of such Notice of
Borrowing to the Borrower or to any other Person (including the Class B Trustee or any Class B Certificateholder). If the Liquidity Provider makes an Advance requested pursuant to a Notice of Borrowing before 12:00 noon (New York City
time) on the second Business Day after the date of payment specified in Section 2.02(e), the Liquidity Provider shall have fully discharged its obligations hereunder with respect to such Advance and an event of default shall not have occurred
hereunder. Following the making of any Advance pursuant to Section 2.02(b), 2.02(c) or 2.02(d) to fund the Class B Cash Collateral Account, the Liquidity Provider shall have no interest in or rights to the Class B Cash Collateral
Account, such Advance or any other amounts from time to time on deposit in the Class B Cash Collateral Account; provided that the foregoing shall not affect or impair the obligations of the Subordination Agent to make the distributions
contemplated by Section 3.05(c)(v), 3.05(e) or 3.05(f) of the Intercreditor Agreement. By paying to the Borrower proceeds of Advances requested by the Borrower in accordance with the provisions of this Agreement, the Liquidity Provider makes no
representation as to, and assumes no responsibility for, the correctness or sufficiency for any purpose of the amount of the Advances so made and requested. 

Section 2.03 Fees. The Borrower agrees to pay to the Liquidity Provider the fees set forth in the Fee Letter. 

Section 2.04 Reduction or Termination of the Maximum Commitment. (a) Automatic Reduction. Promptly following each date
on which the Required Amount is reduced as a result of a reduction in the Pool Balance of the Class B Certificates, the Maximum Commitment shall automatically be reduced to an amount equal to such reduced Required Amount (as calculated by the
Borrower). The Borrower shall give notice of any such automatic reduction of the Maximum Commitment to the Liquidity Provider and Spirit within two Business Days thereof. The failure 

  

					
		  	13	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
by the Borrower to furnish any such notice shall not affect any such automatic reduction of the Maximum Commitment. 

(b) Termination. Upon the making of any Provider Advance or Special Termination Advance or the making of or conversion to a Final
Advance hereunder or the occurrence of the Termination Date, the obligation of the Liquidity Provider to make further Advances hereunder shall automatically and irrevocably terminate, and the Borrower shall not be entitled to request any further
Borrowing hereunder, except in the case of a Downgrade Advance, as provided in Section 2.06(d). 
 Section 2.05 Repayments of
Interest Advances, the Special Termination Advance or the Final Advance. Subject to Sections 2.06, 2.07 and 2.09 hereof, the Borrower hereby agrees, without notice of an Advance or demand for repayment from the Liquidity Provider (which notice
and demand are hereby waived by the Borrower), to pay, or to cause to be paid, to the Liquidity Provider (a) on each date on which the Liquidity Provider shall make an Interest Advance, the Special Termination Advance or the Final Advance, an
amount equal to the amount of such Advance (any such Advance, until repaid, is referred to herein as an “Unpaid Advance”), plus (b) interest on the amount of each such Unpaid Advance in the amounts and on the dates
determined as provided in Section 3.07; provided that if (i) the Liquidity Provider shall make a Provider Advance at any time after making one or more Interest Advances which shall not have been repaid in accordance with this
Section 2.05 or (ii) this Liquidity Facility shall become a Downgraded Facility or Non-Extended Facility at any time when unreimbursed Interest Advances have reduced the Maximum Available Commitment
to zero, then such Interest Advances shall cease to constitute Unpaid Advances and shall be deemed to have been changed into an Applied Downgrade Advance or an Applied Non-Extension Advance, as the case may
be, for all purposes of this Agreement (including, without limitation, for the purpose of determining when such Interest Advance is required to be repaid to the Liquidity Provider in accordance with Section 2.06 and for the purposes of
Section 2.06(b)); provided, further, that amounts in respect of a Special Termination Advance withdrawn from the Class B Cash Collateral Account for the purpose of paying interest on the Class B Certificates in
accordance with Section 3.05(f) of the Intercreditor Agreement (the portion of the outstanding Special Termination Advance equal to the amount of any such withdrawal, but not in excess of the outstanding Special Termination Advance, being an
“Applied Special Termination Advance”) shall thereafter (subject to Section 2.06(b)) be treated as an Interest Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable
thereon; provided, further, that if, following the making of a Special Termination Advance, the Liquidity Provider delivers a Termination Notice to the Borrower pursuant to Section 6.01(a), such Special Termination Advance
(including any portion thereof that is an Applied Special Termination Advance) shall thereafter be treated as a Final Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon; and,
provided, further, that if, after making a Provider Advance, the Liquidity Provider delivers a Special Termination Notice to the Borrower pursuant to Section 6.01(b), any Unapplied Provider Advance shall be converted to and
treated as a Special Termination Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon and the obligation for repayment 

  

					
		  	14	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
thereof under the Intercreditor Agreement. The Borrower and the Liquidity Provider agree that the repayment in full of each Interest Advance, Special Termination Advance and Final Advance on the
date such Advance is made is intended to be a contemporaneous exchange for new value given to the Borrower by the Liquidity Provider. For the avoidance of doubt, interest payable on an Interest Advance, Special Termination Advance or the Final
Advance shall not be regarded as overdue unless such interest is not paid when due under Section 3.07. 
 Section 2.06
Repayments of Provider Advances. (a) Amounts advanced hereunder in respect of a Provider Advance shall be deposited in the Class B Cash Collateral Account and invested and withdrawn from the Class B Cash Collateral Account as
set forth in Sections 3.05(c), 3.05(d), 3.05(e) and 3.05(f) of the Intercreditor Agreement. Subject to Sections 2.07 and 2.09, the Borrower agrees to pay to the Liquidity Provider, on each Regular Distribution Date, commencing on the first Regular
Distribution Date after the making of a Provider Advance, interest on the principal amount of any such Provider Advance, in the amounts determined as provided in Section 3.07; provided, however, that amounts in respect of a
Provider Advance withdrawn from the Class B Cash Collateral Account for the purpose of paying interest on the Class B Certificates in accordance with Section 3.05(f) of the Intercreditor Agreement (the amount of any such withdrawal
being (y), in the case of a Downgrade Advance, an “Applied Downgrade Advance” and (z) in the case of a Non-Extension Advance, an “Applied Non-Extension Advance” and together with an Applied Downgrade Advance, an “Applied Provider Advance”) shall thereafter (subject to Section 2.06(b)) be treated as an Interest
Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable thereon; provided, further, however, that if, following the making of a Provider Advance, the Liquidity Provider
delivers a Termination Notice to the Borrower pursuant to Section 6.01(a), such Provider Advance shall thereafter be treated as a Final Advance under this Agreement for purposes of determining the Applicable Liquidity Rate for interest payable
thereon. Subject to Sections 2.07 and 2.09, immediately upon the withdrawal of any amounts from the Class B Cash Collateral Account on account of a reduction in the Required Amount, the Borrower shall repay to the Liquidity Provider a portion
of the Provider Advances in a principal amount equal to such reduction, plus interest on the principal amount so repaid as provided in Section 3.07. 

(b) At any time when an Applied Provider Advance or Applied Special Termination Advance (or any portion thereof) is outstanding, upon the
deposit in the Class B Cash Collateral Account of any amount pursuant to clause “fourth” of Section 3.02 of the Intercreditor Agreement (any such amount being a “Replenishment Amount”) for the purpose of
replenishing or increasing the balance thereof up to the Required Amount at such time, (i) the aggregate outstanding principal amount of all Applied Provider Advances and Applied Special Termination Advances (and of Provider Advances and
Special Termination Advances treated as Interest Advances for purposes of determining the Applicable Liquidity Rate for interest payable thereon) shall be automatically reduced by the amount of such Replenishment Amount, and (ii) the aggregate
outstanding principal amount of all Unapplied Provider Advances shall be automatically increased by the amount of such Replenishment Amount. 

  

					
		  	15	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 (c) Upon the provision of a Replacement Liquidity Facility in replacement of this Agreement in
accordance with Section 3.05(e) of the Intercreditor Agreement, as provided in Section 3.05(f) of the Intercreditor Agreement, amounts remaining on deposit in the Class B Cash Collateral Account after giving effect to any Applied
Provider Advance or Applied Special Termination Advance on the date of such replacement shall be reimbursed to the Liquidity Provider, but only to the extent such amounts are necessary to repay in full to the Liquidity Provider all amounts owing to
it hereunder. 
 (d) If, at any time after making a Downgrade Advance, the Liquidity Provider satisfies the Threshold Rating and delivers
written notice to that effect to the Borrower and Spirit, as of the second Business Day following receipt of such notice, (i) this Liquidity Facility shall cease to be a Downgraded Facility, (ii) any Unapplied Downgrade Advance shall be
withdrawn from the Class B Cash Collateral Account and reimbursed to the Liquidity Provider, (iii) any Applied Downgrade Advance shall be converted to an Interest Advance, (iv) the Maximum Available Commitment shall be reinstated by
an amount equal to the amount of such Unapplied Downgrade Advance so reimbursed, but not to exceed the Maximum Commitment, and the obligation of the Liquidity Provider to make Advances shall be reinstated in an equal amount, (v) the Borrower
shall be entitled to request Borrowings and (vi) the proviso in the definition of Maximum Available Commitment and the proviso in the final sentence of Section 2.02(a) shall, in each case, no longer apply to such Downgrade Advance. 

Section 2.07 Payments to the Liquidity Provider Under the Intercreditor Agreement. In order to provide for payment or repayment to
the Liquidity Provider of any amounts hereunder, the Intercreditor Agreement provides that amounts available and referred to in Articles II and III of the Intercreditor Agreement, to the extent payable to the Liquidity Provider pursuant to the terms
of the Intercreditor Agreement (including, without limitation, Section 3.05(f) of the Intercreditor Agreement), shall be paid to the Liquidity Provider in accordance with the terms thereof (but, for the avoidance of doubt, without duplication
of or increase in any amounts payable hereunder). Amounts so paid to the Liquidity Provider shall be applied by the Liquidity Provider in the order of priority required by the applicable provisions of Articles II and III of the Intercreditor
Agreement and shall discharge in full the corresponding obligations of the Borrower hereunder. 
 Section 2.08 Book Entries. The
Liquidity Provider shall maintain in accordance with its usual practice an account or accounts evidencing the indebtedness of the Borrower resulting from Advances made from time to time and the amounts of principal and interest payable hereunder and
paid from time to time in respect thereof; provided, however, that the failure by the Liquidity Provider to maintain such account or accounts shall not affect the obligations of the Borrower in respect of Advances. 

Section 2.09 Payments from Available Funds Only. All payments to be made by the Borrower under this Agreement shall be made only
from the amounts that constitute Scheduled 

  

					
		  	16	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
Payments, Special Payments and other payments under the Operative Agreements, including payment under Section 4.02 of the Participation Agreements and payments under Section 2.14 of the
Indentures, and only to the extent that the Borrower shall have sufficient income or proceeds therefrom to enable the Borrower to make payments in accordance with the terms hereof after giving effect to the priority of payments provisions set forth
in the Intercreditor Agreement. The Liquidity Provider agrees that it will look solely to such amounts to the extent available for distribution to it as provided in the Intercreditor Agreement and this Agreement and that the Borrower, in its
individual capacity, is not personally liable to it for any amounts payable or liability under this Agreement except as expressly provided in this Agreement, the Intercreditor Agreement or any Participation Agreement. Amounts on deposit in the
Class B Cash Collateral Account shall be available to the Borrower to make payments under this Agreement only to the extent and for the purposes expressly contemplated in Section 3.05(f) of the Intercreditor Agreement. 

Section 2.10 Extension of the Expiry Date; Non-Extension Advance. If the Liquidity
Provider notifies the Borrower and Spirit in writing before the 25th day prior to any anniversary date of the Closing Date that occurs prior to the
15th day after the Final Legal Distribution Date for the Class B Certificates (such notice, a “Non-Extension Notice”; and such
25th day, the “Notice Date”) that its obligations to make Advances hereunder shall not be extended beyond the immediately following anniversary date of the Closing Date
(and if the Liquidity Provider shall not have been replaced in accordance with Section 3.05(e) of the Intercreditor Agreement), the Borrower shall be entitled on and after the Notice Date (but prior to such anniversary date and in any event
prior to the then applicable Expiry Date) to request a Non-Extension Advance in accordance with Section 2.02(b)(i) hereof and Section 3.05(d) of the Intercreditor Agreement. 

ARTICLE III 
 OBLIGATIONS OF THE
BORROWER 
 Section 3.01 Increased Costs. Without duplication of any rights created by Section 3.03, if as a result of any
Regulatory Change there shall be any increase by an amount reasonably deemed by the Liquidity Provider to be material in the actual cost to the Liquidity Provider of making, funding or maintaining any Advances or its obligation to make any such
Advances or there shall be any reduction by an amount reasonably deemed by the Liquidity Provider to be material in the amount receivable by the Liquidity Provider under this Agreement or the Intercreditor Agreement in respect thereof, and in case
of either such an increase or reduction, such event does not arise from the gross negligence or willful misconduct of the Liquidity Provider, from its breach of any of its representations, warranties, covenants or agreements contained herein or in
the Intercreditor Agreement or from its failure to comply with any such Regulatory Change (any such increase or reduction being referred to herein as an “Increased Cost”), then, subject to Sections 2.07 and 2.09, the Borrower
shall from time to time pay to the Liquidity Provider an amount equal to such Increased Cost within 10 Business Days after delivery to the Borrower and Spirit of a certificate of an officer of the Liquidity Provider

  

					
		  	17	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
describing in reasonable detail the event by reason of which it claims such Increased Cost and the basis for the determination of the amount of such Increased Cost; provided that the
Borrower shall be obligated to pay amounts only with respect to any Increased Costs accruing from the date 120 days prior to the date of delivery of such certificate. Such certificate, in the absence of manifest error, shall be considered prima
facie evidence of the amount of the Increased Costs for purposes of this Agreement; provided that any determinations and allocations by the Liquidity Provider of the effect of any Regulatory Change on the costs of maintaining the Advances or
the obligation to make Advances are made on a reasonable basis. For the avoidance of doubt, the Liquidity Provider shall not be entitled to assert any claim under this Section 3.01 in respect of or attributable to Excluded Taxes. The Liquidity
Provider will notify the Borrower and Spirit as promptly as practicable of any event occurring after the date of this Agreement that will entitle the Liquidity Provider to compensation under this Section 3.01. The Liquidity Provider agrees to
investigate all commercially reasonable alternatives for reducing any Increased Costs and to use all commercially reasonable efforts to avoid or minimize, to the greatest extent possible, any claim in respect of Increased Costs, including, without
limitation, by designating a different Lending Office, if such designation or other action would avoid the need for, or reduce the amount of, any such claim; provided that the foregoing shall not obligate the Liquidity Provider to take any
action that would, in its reasonable judgment, cause the Liquidity Provider to take any action that is not materially consistent with its internal policies or is otherwise materially disadvantageous to the Liquidity Provider or that would cause the
Liquidity Provider to incur any material loss or cost, unless the Borrower or Spirit agrees to reimburse or indemnify the Liquidity Provider therefor. If no such designation or other action is effected, or, if effected, such notice fails to avoid
the need for any claim in respect of Increased Costs, Spirit may arrange for a Replacement Liquidity Facility in accordance with Section 3.05(e) of the Intercreditor Agreement. 

Notwithstanding the foregoing provisions, in no event shall the Borrower be required to make payments under this Section 3.01:
(a) in respect of any Regulatory Change proposed by any applicable governmental authority (including any branch of a legislature), central bank or comparable agency of the United States or the Liquidity Provider’s jurisdiction of
organization or in which its Lending Office is located and pending as of the date of this Agreement (it being agreed that the Regulatory Changes contemplated by the frameworks published by the Basel Committee on Banking Supervision entitled
“Basel III: A global regulatory framework for more resilient banks and banking systems” dated December 2010 (revised June 2011) and “Basel III: The Liquidity Coverage Ratio and liquidity risk monitoring tools,” dated January
2013, shall not be considered to have been proposed or pending as of the date of this Agreement); (b) if a claim hereunder in respect of an Increased Cost arises through circumstances peculiar to the Liquidity Provider and that do not affect
similarly organized commercial banking institutions in the same jurisdiction generally that are in compliance with the law, rule, regulation or interpretation giving rise to the Regulatory Change relating to such Increased Cost; (c) if the
Liquidity Provider shall fail to comply with its obligations under this Section 3.01 or (d) if the Liquidity Provider is not also seeking payment for similar increased costs in other similarly situated transactions related to the airline
industry. 

  

					
		  	18	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Section 3.02 Reserved. 

Section 3.03 Withholding Taxes. (a) All payments made by the Borrower under this Agreement shall be made without deduction or
withholding for or on account of any Taxes, unless such deduction or withholding is required by law. If any Taxes are so required to be withheld or deducted from any amounts payable to the Liquidity Provider under this Agreement, then, subject to
Sections 2.07 and 2.09, the Borrower shall pay to the relevant authorities the full amount so required to be deducted or withheld and, without duplication of any rights created by Section 3.01, if such Taxes are Covered Taxes, pay to the
Liquidity Provider such additional amounts as shall be necessary to ensure that the net amount actually received by the Liquidity Provider (after deduction or withholding of all Covered Taxes) shall be equal to the full amount that would have been
received by the Liquidity Provider had no withholding or deduction of Covered Taxes been required. The Liquidity Provider agrees to use reasonable efforts (consistent with applicable legal and regulatory restrictions) to change the jurisdiction of
its Lending Office if making such change would avoid the need for, or reduce the amount of, any such additional amounts that may thereafter accrue and would not, in the reasonable judgment of the Liquidity Provider, be otherwise materially
disadvantageous to the Liquidity Provider. 
 If the Liquidity Provider receives a refund of, or realizes a net Tax benefit not otherwise
available to it as a result of, any Taxes for which additional amounts were paid by the Borrower pursuant to this Section 3.03, the Liquidity Provider shall pay to the Borrower (for deposit into the Collection Account) the amount of such refund
(and any interest thereon), net of any related out-of-pocket expenses, or net benefit. The Borrower, upon the request of the Liquidity Provider, shall repay to the
Liquidity Provider the amount paid over pursuant to this paragraph (plus any penalties, interest or other charges imposed by the relevant governmental or taxing authority) in the event that the Liquidity Provider is required to repay such refund to
such governmental or taxing authority. Notwithstanding anything to the contrary in this paragraph, in no event will the Liquidity Provider be required to pay any amount to the Borrower pursuant to this paragraph the payment of which would place the
Liquidity Provider in a less favorable net after-Tax position than the Liquidity Provider would have been in if the Tax subject to indemnification and giving rise to such refund or net Tax benefit had not been
deducted, withheld or otherwise imposed and the indemnification payments or additional amounts with respect to such Tax had never been paid. This paragraph shall not be construed to require the Liquidity Provider to make available its Tax returns
(or any other information relating to its Taxes that it deems confidential) to the Borrower or any other Person. 
 The Liquidity Provider
will (i) provide (on its behalf and on behalf of any participant holding a Participation pursuant to Section 7.08) to the Borrower (x) on or prior to the Effective Date two valid completed and executed copies of Internal Revenue
Service Form W-9, W-8BEN-E or W-8ECI (whichever is applicable), including thereon a valid
U.S. taxpayer identification number (or, with respect to any such participant, such other form or documentation as may be applicable) covering all amounts receivable by it in connection with the transactions contemplated by the Operative Agreements
and (y) thereafter from time to time such additional 

  

					
		  	19	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
forms or documentation as may be necessary to establish an available exemption from withholding of United States Tax on payments hereunder so that such forms or documentation are effective for
all periods during which it is the Liquidity Provider and (ii) provide timely notice to the Borrower if any such form or documentation is or becomes inaccurate. The Liquidity Provider shall deliver to the Borrower such other forms or documents
as may be reasonably requested by the Borrower or required by applicable law to establish that payments hereunder are exempt from or entitled to a reduced rate of Covered Taxes. 

(b) All payments (including, without limitation, Advances) made by the Liquidity Provider under this Agreement shall be made free and clear of,
and without reduction for or on account of, any Taxes. If any Taxes are required to be withheld or deducted from any amounts payable to the Borrower under this Agreement, the Liquidity Provider shall (i) within the time prescribed therefor by
applicable law pay to the appropriate governmental or taxing authority the full amount of any such Taxes (and any additional Taxes in respect of the additional amounts payable under clause (ii) hereof) and make such reports or returns in
connection therewith at the time or times and in the manner prescribed by applicable law, and (ii) pay to the Borrower an additional amount which (after deduction of all such Taxes) will be sufficient to yield to the Borrower the full amount
which would have been received by it had no such withholding or deduction been made. Within 30 days after the date of each payment hereunder, the Liquidity Provider shall furnish to the Borrower the original or a certified copy of (or other
documentary evidence of) the payment of the Taxes applicable to such payment. 
 If any exemption from, or reduction in the rate of, any
Taxes required to be borne by the Liquidity Provider under this Section 3.03(b) is reasonably available to the Borrower without providing any information regarding the holders or beneficial owners of the Certificates, the Borrower shall deliver
the Liquidity Provider such form or forms and such other evidence of the eligibility of the Borrower for such exemption or reductions (but without any requirement to provide any information regarding the holders or beneficial owners of the
Certificates) as the Liquidity Provider may reasonably identify to the Borrower as being required as a condition to exemption from, or reduction in the rate of, such Taxes. 

(c) If a payment made hereunder to the Liquidity Provider would be subject to U.S. federal withholding Tax imposed by FATCA if the Liquidity
Provider were to fail to comply with the applicable reporting requirement of FATCA (including without limitation those contained in Section 1471(b) or 1472(b) of the Code, as applicable), the Liquidity Provider shall deliver to the Borrower at
the time or times prescribed by law and at such time or times reasonably requested by the Borrower such documentation prescribed by applicable law (including as prescribed by Section 1471(b)(3)(C)(i) of the Code) and such additional
documentation reasonably requested by the Borrower as may be necessary for the Borrower to comply with the Borrower’s obligations under FATCA and to determine whether the Liquidity Provider has complied with the Liquidity Provider’s
obligations under FATCA or to determine the amount to deduct and withhold from such payment. Solely for purposes of this paragraph, “FATCA” shall include any amendments made to FATCA after the date of this Agreement. 

  

					
		  	20	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Section 3.04 Payments. Subject to Sections 2.07 and 2.09, the Borrower shall make or
cause to be made each payment to the Liquidity Provider under this Agreement so as to cause the same to be received by the Liquidity Provider not later than 1:00 p.m. (New York City time) on the day when due. The Borrower shall make all such
payments in Dollars, to the Liquidity Provider in immediately available funds, by wire transfer to the account of Commonwealth Bank of Australia, New York Branch, at The Bank of New York Mellon, New York, New York; Swift/ABA Routing No.
[                    ]; For Account of Commonwealth Bank of Australia, New York; Account #:
[                    ], Reference to: Spirit 2017-1B, Attention: Loan Administration; or to such other
U.S. bank account as the Liquidity Provider may from time to time direct the Subordination Agent. 
 Section 3.05 Computations.
All computations of interest based on the Base Rate shall be made on the basis of a year of 365 or 366 days, as the case may be, and all computations of interest based on the LIBOR Rate shall be made on the basis of a year of 360 days, in each case
for the actual number of days (including the first day but excluding the last day) occurring in the period for which such interest is payable. 

Section 3.06 Payment on Non-Business Days. Whenever any payment to be made
hereunder shall be stated to be due on a day other than a Business Day, such payment shall be made on the next succeeding Business Day and no additional interest shall be due as a result (and if so made, shall be deemed to have been made when due).
If any payment in respect of interest on an Advance is so deferred to the next succeeding Business Day, such deferral shall not delay the commencement of the next Interest Period for such Advance (if such Advance is a LIBOR Advance) or reduce the
number of days for which interest will be payable on such Advance on the next Interest Payment Date for such Advance. 
 Section 3.07
Interest. (a) Subject to Sections 2.07 and 2.09, the Borrower shall pay, or shall cause to be paid, without duplication, interest on (i) the unpaid principal amount of each Advance from and including the date of such Advance (or, in
the case of an Applied Provider Advance or Applied Special Termination Advance, from and including the date on which the amount thereof was withdrawn from the Class B Cash Collateral Account to pay interest on the Class B Certificates) to
but excluding the date such principal amount shall be paid in full (or, in the case of an Applied Provider Advance or Applied Special Termination Advance, the date on which the Class B Cash Collateral Account is fully replenished in respect of
such Advance) and (ii), to the extent permitted by law, any other amount due hereunder (whether fees, commissions, expenses or other amounts or installments of interest on Advances or any such other amount) that is not paid when due (whether at
stated maturity, by acceleration or otherwise) from and including the due date thereof to but excluding the date such amount is paid in full, in each such case, at the interest rate per annum for each day that such amount remains overdue and unpaid
equal to the Applicable Liquidity Rate for such Advance or such other amount, as the case may be, as in effect for such day, but in no event in any case referred to in clause (i) or (ii) above at a rate per annum greater than the maximum rate
permitted by applicable law; provided, however, that, if at any time the otherwise applicable interest rate as set forth in this Section 3.07 shall 

  

					
		  	21	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
exceed the maximum rate permitted by applicable law, then to the maximum extent permitted by applicable law any subsequent reduction in such interest rate will not reduce the rate of interest
payable pursuant to this Section 3.07 below the maximum rate permitted by applicable law until the total amount of interest accrued equals the absolute amount of interest that would have accrued (without additional interest thereon) if such
otherwise applicable interest rate as set forth in this Section 3.07 had at all relevant times been in effect. 
 (b) Each Advance
(other than a Provider Advance or a Special Termination Advance) will be a Base Rate Advance for the period from the date of its Borrowing to (but excluding) the third Business Day following the Liquidity Provider’s receipt of the Notice of
Borrowing for such Advance. Thereafter, such Advance shall be a LIBOR Advance, and an Applied Provider Advance and an Applied Special Termination Advance shall be a LIBOR Advance from the date of its withdrawal from the Class B Cash Collateral
Account. 
 (c) Each LIBOR Advance shall bear interest during each Interest Period at a rate per annum equal to the LIBOR Rate for such
Interest Period plus the Applicable Margin for such LIBOR Advance, payable in arrears on the last day of such Interest Period and, in the event of the payment of principal of such LIBOR Advance on a day other than such last day, on the date of such
payment (to the extent of interest accrued on the amount of principal repaid). 
 (d) Each Base Rate Advance shall bear interest at a rate
per annum equal to the Base Rate plus the Applicable Margin for such Base Rate Advance, payable in arrears on each Regular Distribution Date and, in the event of the payment of principal of such Base Rate Advance on a day other than a Regular
Distribution Date, on the date of such payment (to the extent of interest accrued on the amount of principal repaid). 
 (e) Each outstanding
Unapplied Non-Extension Advance, Unapplied Downgrade Advance or Unapplied Special Termination Advance (each, an “Unapplied Advance”), as the case may be, shall bear interest, payable in
arrears on each Regular Distribution Date, in an amount equal to (i) the Investment Earnings on the amounts on deposit in the Class B Cash Collateral Account on account of such Unapplied Advance during the period beginning on the later of
the date of deposit of such Unapplied Advance and the preceding Regular Distribution Date or, if greater, interest on such Unapplied Advance during such period at the interest rate per annum specified for such Unapplied Advance in the Fee Letter,
plus (ii) an amount equal to interest at the Applicable Margin on the amount of such Unapplied Advance during such period. 
 (f) Each
amount not paid when due hereunder (whether fees, commissions, expenses or other amounts or installments of interest on Advances but excluding Advances) shall bear interest, to the extent permitted by applicable law, at a rate per annum equal to the
Base Rate plus 2.0% per annum until paid. 

  

					
		  	22	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 (g) If at any time, the Liquidity Provider shall have determined (which determination shall be
conclusive and binding upon the Borrower, absent manifest error) that, by reason of circumstances affecting the relevant interbank lending market generally, the LIBOR Rate determined or to be determined for the next succeeding Interest Period will
not adequately and fairly reflect the cost to the Liquidity Provider (as conclusively certified by the Liquidity Provider, absent manifest error) of making or maintaining Advances, the Liquidity Provider shall give facsimile or telephonic notice
thereof (a “Rate Determination Notice”) to the Borrower and Spirit. If such notice is given, then the outstanding principal amount of the LIBOR Advances shall be converted to Base Rate Advances effective from the date of the
Rate Determination Notice; provided that the Applicable Liquidity Rate in respect of such Base Rate Advances shall be increased by one percent (1.00%). The Liquidity Provider shall withdraw a Rate Determination Notice given hereunder when the
Liquidity Provider determines that the circumstances giving rise to such Rate Determination Notice no longer apply to the Liquidity Provider, and the Base Rate Advances shall be converted to LIBOR Advances effective as of the first day of the next
succeeding Interest Period after the date of such withdrawal. 
 (h) Each change in the Base Rate shall become effective immediately. The
rates of interest specified in this Section 3.07 with respect to any Advance or other amount shall be referred to as the “Applicable Liquidity Rate”. 

Section 3.08 Replacement of Borrower. Subject to Section 5.02, from time to time and subject to the successor Borrower’s
meeting the eligibility requirements set forth in Section 6.09 of the Intercreditor Agreement applicable to the Subordination Agent, upon the effective date and time specified in a written and completed Notice of Replacement Subordination Agent
in substantially the form of Annex VIII (a “Notice of Replacement Subordination Agent”) delivered to the Liquidity Provider by the then Borrower, the successor Borrower designated therein shall become the Borrower for
all purposes hereunder. 
 Section 3.09 Funding Loss Indemnification. The Borrower shall pay to the Liquidity Provider, upon the
request of the Liquidity Provider, such amount or amounts as shall be sufficient (in the reasonable opinion of the Liquidity Provider) to compensate it for any loss, cost or expense incurred by reason of the liquidation or redeployment of deposits
or other funds acquired by the Liquidity Provider to fund or maintain any LIBOR Advance (but excluding loss of the Applicable Margin or anticipated profits) incurred as a result of: 

(1) Any repayment of a LIBOR Advance on a date other than the last day of the Interest Period for such Advance; or 

(2) Any failure by the Borrower to borrow a LIBOR Advance on the date for borrowing specified in the relevant notice under
Section 2.02. 

  

					
		  	23	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Section 3.10 Illegality. Notwithstanding any other provision in this Agreement, if
any change in any law, rule or regulation applicable to or binding on the Liquidity Provider, or any change in the interpretation or administration thereof by any governmental authority, central bank or comparable agency charged with the
interpretation or administration thereof, or compliance by the Liquidity Provider with any request or directive (whether or not having the force of law) of any such authority, central bank or comparable agency shall make it unlawful or impossible
for the Liquidity Provider to maintain or fund its LIBOR Advances, then upon notice to the Borrower and Spirit by the Liquidity Provider, the outstanding principal amount of the LIBOR Advances shall be converted to Base Rate Advances
(a) immediately upon demand of the Liquidity Provider, if such change or compliance with such request, in the reasonable judgment of the Liquidity Provider, requires immediate conversion; or (b) at the expiration of the last Interest
Period to expire before the effective date of any such change or request. The Liquidity Provider will notify the Borrower and Spirit as promptly as practicable of any event that will or to its knowledge is reasonably likely to lead to the conversion
of LIBOR Advances to Base Rate Advances under this Section 3.10; provided that a failure by the Liquidity Provider to notify the Borrower or Spirit of an event that is reasonably likely to lead to such a conversion prior to the time that
it is determined that such event will lead to such a conversion shall not prejudice the rights of the Liquidity Provider under this Section 3.10. The Liquidity Provider agrees to investigate all commercially reasonable alternatives for avoiding
the need for such conversion, including, without limitation, designating a different Lending Office, if such designation or other action would avoid the need to convert such LIBOR Advances to Base Rate Advances; provided that the foregoing
shall not obligate the Liquidity Provider to take any action that would, in its reasonable judgment, cause the Liquidity Provider to incur any material loss or cost, unless the Borrower or Spirit agrees to reimburse or indemnify the Liquidity
Provider therefor. If no such designation or other action is effected, or, if effected, fails to avoid the need for conversion of the LIBOR Advances to Base Rate Advances, Spirit may arrange for a Replacement Liquidity Facility in accordance with
Section 3.05(e) of the Intercreditor Agreement. 
 ARTICLE IV 

CONDITIONS PRECEDENT 

Section 4.01 Conditions Precedent to Effectiveness of Section 2.01. Section 2.01 of this Agreement shall
become effective on and as of the first date (the “Effective Date”) on which the following conditions precedent have been satisfied (or waived by the appropriate party or parties): 

(a) The Liquidity Provider shall have received on or before the Closing Date each of the following, and in the case of each document delivered
pursuant to paragraphs (i), (ii) and (iii), each in form and substance satisfactory to the Liquidity Provider: 

  

					
		  	24	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 (i) This Agreement and the Fee Letter duly executed on behalf of the Borrower
and, in the case of the Fee Letter, Spirit; 
 (ii) The Intercreditor Agreement duly executed on behalf of each of the
parties thereto (other than the Liquidity Provider); 
 (iii) Fully executed copies of each of the Operative Agreements
executed and delivered on or before the Closing Date (other than this Agreement, the Fee Letter and the Intercreditor Agreement); 

(iv) A copy of the Prospectus Supplement and specimen copies of the Class B Certificates; 

(v) An executed copy of each opinion (other than the negative assurance letter of Debevoise and Plimpton LLP, special counsel
to Spirit, and the opinion and the negative assurance letter of White & Case LLP, special counsel to the Underwriters) delivered on the Closing Date pursuant to the Underwriting Agreement (in the case of each such opinion, either addressed
to the Liquidity Provider or accompanied by a letter from the counsel rendering such opinion to the effect that the Liquidity Provider is entitled to rely on such opinion as of its date as if it were addressed to the Liquidity Provider);  
 (vi) An executed copy of each document, instrument, certificate and
opinion delivered on or before the Closing Date pursuant to the Class B Trust Agreement, the Intercreditor Agreement and the other Operative Agreements (in the case of each such opinion, either addressed to the Liquidity Provider or accompanied
by a letter from the counsel rendering such opinion to the effect that the Liquidity Provider is entitled to rely on such opinion as of its date as if it were addressed to the Liquidity Provider); and 

(vii) An agreement from Spirit, pursuant to which (x) Spirit agrees to provide copies of quarterly financial statements
and audited annual financial statements to the Liquidity Provider (which Spirit may provide in an electronic format by electronic mail or making such available over the internet) and (y) Spirit agrees to allow the Liquidity Provider to discuss
the transactions contemplated by the Operative Agreements with officers and employees of Spirit. 
 (b) On and as of the Effective Date no
event shall have occurred and be continuing, or would result from the entering into of this Agreement or the making of any Advance, which constitutes a Liquidity Event of Default. 

  

					
		  	25	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 (c) The Liquidity Provider shall have received payment in full of the fees and other sums
required to be paid to or for the account of the Liquidity Provider on or prior to the Effective Date pursuant to the Fee Letter. 
 (d) All
conditions precedent to the issuance of the Certificates under the Trust Agreements shall have been satisfied or waived, all conditions precedent to the effectiveness of the other Liquidity Facilities shall have been satisfied or waived, and all
conditions precedent to the purchase of the Class AA Certificates, the Class A Certificates and the Class B Certificates by the Underwriters under the Underwriting Agreement shall have been satisfied (unless any of such conditions
precedent under the Underwriting Agreement shall have been waived by the Underwriters). 
 (e) The Borrower and Spirit shall have received a
certificate, dated the Effective Date signed by a duly authorized representative of the Liquidity Provider, certifying that all conditions precedent specified in this Section 4.01 have been satisfied or waived by the Liquidity Provider. 

Section 4.02 Conditions Precedent to Borrowing. The obligation of the Liquidity Provider to make an Advance on the occasion of
each Borrowing shall be subject to the conditions precedent that the Effective Date shall have occurred and, prior to the time of such Borrowing, the Borrower shall have delivered a Notice of Borrowing which conforms to the terms and conditions of
this Agreement. 
 ARTICLE V 

COVENANTS 
 Section 5.01
Affirmative Covenants of the Borrower. So long as any Advance shall remain unpaid or the Liquidity Provider shall have any Maximum Available Commitment hereunder or the Borrower shall have any obligation to pay any amount to the Liquidity
Provider hereunder, the Borrower will, unless the Liquidity Provider shall otherwise consent in writing: 
 (a) Performance of
Agreements. Subject to Sections 2.07 and 2.09, punctually pay or cause to be paid all amounts payable by it under this Agreement and the Intercreditor Agreement and observe and perform in all material respects the conditions, covenants and
requirements applicable to it contained in this Agreement and the Intercreditor Agreement; 
 (b) Reporting Requirements. Furnish to
the Liquidity Provider with reasonable promptness, such other information and data with respect to the transactions 

  

					
		  	26	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
contemplated by the Operative Agreements as from time to time may be reasonably requested by the Liquidity Provider; and permit the Liquidity Provider, upon reasonable notice, to inspect the
Borrower’s books and records with respect to such transactions and to meet with officers and employees of the Borrower to discuss such transactions; and 

(c) Certain Operative Agreements. Furnish to the Liquidity Provider, with reasonable promptness, copies of such Operative Agreements
entered into after the date hereof as from time to time may be reasonably requested by the Liquidity Provider. 
 Section 5.02
Negative Covenants of the Borrower. Subject to the first and fourth paragraphs of Section 7.01(a) of the Intercreditor Agreement and Section 7.01(b) of the Intercreditor Agreement, so long as any Advance shall remain unpaid or the
Liquidity Provider shall have any Maximum Available Commitment hereunder or the Borrower shall have any obligation to pay any amount to the Liquidity Provider hereunder, the Borrower will not appoint or permit or suffer to be appointed any successor
Borrower without the prior written consent of the Liquidity Provider, which consent shall not be unreasonably withheld or delayed. 
 ARTICLE
VI 
 LIQUIDITY EVENTS OF DEFAULT AND SPECIAL TERMINATION 

Section 6.01 Liquidity Events of Default. (a) If any Liquidity Event of Default has occurred and is continuing and there is a
Performing Note Deficiency, the Liquidity Provider may, in its discretion, deliver to the Borrower and Spirit a Termination Notice, the effect of which shall be to cause (i) the Termination Date to occur on the fifth Business Day after the date
on which such Termination Notice is received by the Borrower and Spirit, (ii) the Borrower to promptly request, and the Liquidity Provider to promptly make, a Final Advance in accordance with Section 2.02(c) hereof and Section 3.05(i)
of the Intercreditor Agreement, (iii) all other outstanding Advances to be automatically converted into Final Advances for purposes of determining the Applicable Liquidity Rate for interest payable thereon and (iv) subject to Sections 2.07
and 2.09, all Advances, any accrued interest thereon and any other amounts outstanding hereunder to become immediately due and payable to the Liquidity Provider. 

(b) If the aggregate Pool Balance of the Class B Certificates is greater than the aggregate outstanding principal amount of the Series B
Equipment Notes (other than any Series B Equipment Notes previously sold by the Borrower or with respect to which the Aircraft related to such Series B Equipment Notes has been disposed of by the Loan Trustee) at any time during the 18-month period ending on February 15, 2026 the Liquidity Provider may, in its discretion, deliver to the Borrower and Spirit a Special Termination Notice, the effect of which shall be to cause (i) the
Termination Date to occur on the fifth Business Day after the date on which such Special Termination Notice is received by the Borrower and Spirit, (ii) the Borrower to promptly 

  

					
		  	27	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
request, and the Liquidity Provider to promptly make, a Special Termination Advance in accordance with Section 2.02(d) hereof and Section 3.05(k) of the Intercreditor Agreement, and
(iii) subject to Sections 2.07 and 2.09, all Advances (including, without limitation, any Unapplied Provider Advance), to be automatically treated as Special Termination Advances, subject to Section 6.01(a). 

ARTICLE VII 
 MISCELLANEOUS 

Section 7.01 No Oral Modifications or Continuing Waivers. No terms or provisions of this Agreement may be changed, waived,
discharged or terminated orally, but only by an instrument in writing signed by the Borrower and the Liquidity Provider and any other Person whose consent is required pursuant to this Agreement; provided that no such change or other action
shall affect the payment obligations of Spirit or the rights of Spirit without Spirit’s prior written consent; and any waiver of the terms hereof shall be effective only in the specific instance and for the specific purpose given. 

Section 7.02 Notices. Unless otherwise expressly specified or permitted by the terms hereof, all notices, requests, demands,
authorizations, directions, consents, waivers or documents required or permitted under the terms and provisions of this Agreement shall be in English and in writing, and given by United States registered or certified mail, courier service or
facsimile, and any such notice shall be effective when delivered (or, if delivered by facsimile, upon completion of transmission and confirmation by the sender (by a telephone call to a representative of the recipient or by machine confirmation)
that such transmission was received) addressed as follows: 
 If to the Borrower, to: 

WILMINGTON TRUST, NATIONAL ASSOCIATION 

1100 North Market Street 

Wilmington, Delaware 19890-1605 

Attention: Corporate Trust Administration 

Ref.: Spirit 2017-1B EETC 

Telephone: (302) 636-6387 

Telecopy: (302) 636-4140 

If to the Liquidity Provider, to: 

Commonwealth Bank of Australia, New York Branch 

Attention: Head of Structured Asset Finance 

599 Lexington Avenue 
 New York,
NY 10022 

  

					
		  	28	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Telephone: (212) 848-9213 

Telecopy: (212) 336-7725 

cc: millej@cba.com.au; erik,doebler@cba.com.au; deborah.tan@cba.com.au 

With a copy to: 
 Commonwealth
Bank of Australia, New York Branch 
 Attention: Teresa Costa/Camille Marcigliano 

599 Lexington Avenue 
 New York,
NY 10022 
 Telephone: (212) 848-9301 

Telecopy: (212) 336-7725 

cc: NY_LoanAdmin@cba.com.au; pdm_saf@cba.com.au 

Any party, by notice to the other party hereto, may designate additional or different addresses for subsequent notices or communications.
Whenever the words “notice” or “notify” or similar words are used herein, they mean the provision of formal notice as set forth in this Section 7.02. 

Section 7.03 No Waiver; Remedies. No failure on the part of the Liquidity Provider to exercise, and no delay in exercising, any
right under this Agreement shall operate as a waiver thereof; nor shall any single or partial exercise of any right under this Agreement preclude any other or further exercise thereof or the exercise of any other right. The remedies herein provided
are cumulative and not exclusive of any remedies provided by law. 
 Section 7.04 Further Assurances. The Borrower agrees to do
such further acts and things and to execute and deliver to the Liquidity Provider such additional assignments, agreements, powers and instruments as the Liquidity Provider may reasonably require or deem advisable to carry into effect the purposes of
this Agreement and the other Operative Agreements or to better assure and confirm unto the Liquidity Provider its rights, powers and remedies hereunder and under the other Operative Agreements. 

Section 7.05 Indemnification; Survival of Certain Provisions. The Liquidity Provider shall be indemnified hereunder to the extent
and in the manner described in Section 4.02 of the Participation Agreements. In addition, the Borrower agrees to indemnify, protect, defend and hold harmless each Liquidity Indemnitee from and against all Expenses of any kind or nature
whatsoever (other than any Expenses of the nature described in Sections 3.01, 3.03, 3.09 or 7.07 or in the Fee Letter (regardless of whether indemnified against pursuant to said Sections or in such Fee Letter)), that may be imposed on or incurred by
such Liquidity Indemnitee, in any way relating to, resulting from, or arising out of or in connection with, any action, suit or proceeding by any third party against such Liquidity Indemnitee and relating to this Agreement, the Fee Letter, the
Intercreditor Agreement or any Participation Agreement; provided, however, that the Borrower shall not be required to indemnify, protect, defend and hold harmless any Liquidity 

  

					
		  	29	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
Indemnitee in respect of any Expense of such Liquidity Indemnitee to the extent such Expense is (i) attributable to the gross negligence or willful misconduct of such Liquidity Indemnitee or
any other Liquidity Indemnitee, (ii) an ordinary and usual operating overhead expense, (iii) attributable to the failure by such Liquidity Indemnitee or any other Liquidity Indemnitee to perform or observe any agreement, covenant or
condition on its part to be performed or observed in this Agreement, the Intercreditor Agreement, the Fee Letter or any other Operative Agreement to which it is a party or (iv) otherwise excluded from the indemnification provisions contained in
Section 4.02 of the Participation Agreements. The provisions of Sections 3.01, 3.03, 3.09, 7.05 and 7.07 and the indemnities contained in Section 4.02 of the Participation Agreements shall survive the termination of this Agreement. 

Section 7.06 Liability of the Liquidity Provider. (a) Neither the Liquidity Provider nor any of its officers, employees or
directors shall be liable or responsible for: (i) the use which may be made of the Advances or any acts or omissions of the Borrower or any beneficiary or transferee in connection therewith; (ii) the validity, sufficiency or genuineness of
documents, or of any endorsement thereon, even if such documents should prove to be in any or all respects invalid, insufficient, fraudulent or forged; or (iii) the making of Advances by the Liquidity Provider against delivery of a Notice of
Borrowing and other documents which do not comply with the terms hereof; provided, however, that the Borrower shall have a claim against the Liquidity Provider, and the Liquidity Provider shall be liable to the Borrower, to the extent
of any damages suffered by the Borrower that were the result of (A) the Liquidity Provider’s willful misconduct or gross negligence in determining whether documents presented hereunder comply with the terms hereof or (B) any breach by
the Liquidity Provider of any of the terms of this Agreement or the Intercreditor Agreement, including, but not limited to, the Liquidity Provider’s failure to make lawful payment hereunder after the delivery to it by the Borrower of a Notice
of Borrowing complying with the terms and conditions hereof. 
 (b) Neither the Liquidity Provider nor any of its officers, employees or
directors or affiliates shall be liable or responsible in any respect for (i) any error, omission, interruption or delay in transmission, dispatch or delivery of any message or advice, however transmitted, in connection with this Agreement or
any Notice of Borrowing delivered hereunder or (ii) any action, inaction or omission which may be taken by it in good faith, absent willful misconduct or negligence (in which event the extent of the Liquidity Provider’s potential liability
to the Borrower shall be limited as set forth in the immediately preceding paragraph), in connection with this Agreement or any Notice of Borrowing. 

Section 7.07 Certain Costs and Expenses. The Borrower agrees promptly to pay, or cause to be paid, (a) the reasonable fees,
expenses and disbursements of Winston & Strawn LLP, special counsel for the Liquidity Provider, in connection with the preparation, negotiation, execution, delivery, filing and recording of the Operative Agreements, any waiver or consent
thereunder or any amendment thereof and (b) if a Liquidity Event of Default occurs, all out-of-pocket expenses incurred by the Liquidity Provider, including
reasonable fees and disbursements of counsel, in connection with such Liquidity Event of Default and any collection, 

  

					
		  	30	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
bankruptcy, insolvency and other enforcement proceedings in connection therewith. In addition, the Borrower shall pay any and all recording, stamp and other similar Taxes and fees payable or
determined to be payable in the United States in connection with the execution, delivery, filing and recording of this Agreement, any other Operative Agreement and such other documents, and agrees to save the Liquidity Provider harmless from and
against any and all liabilities with respect to or resulting from any delay in paying or omission to pay such Taxes or fees. 

Section 7.08 Binding Effect; Participations. (a) This Agreement shall be binding upon and inure to the benefit of the
Borrower and the Liquidity Provider and their respective successors and permitted assigns, except that neither the Liquidity Provider (except as otherwise provided in this Section 7.08) nor (except as contemplated by Section 3.08) the
Borrower shall have the right to assign, pledge or otherwise transfer its rights or obligations hereunder or any interest herein, subject to the Liquidity Provider’s right to grant Participations pursuant to Section 7.08(b). 

(b) The Liquidity Provider agrees that it will not grant any participation (including, without limitation, a “risk participation”)
(any such participation, a “Participation”) in or to all or a portion of its rights and obligations hereunder or under the other Operative Agreements, unless all of the following conditions are satisfied: (i) such
Participation is to a Permitted Transferee, (ii) such Participation is made in accordance with all applicable laws, including, without limitation, the Securities Act of 1933, as amended, the Trust Indenture Act of 1939, as amended, any laws or
regulations imposing U.S. economic sanctions measures or any orders or licenses issued thereunder and any other applicable laws relating to the transfer of similar interests and (iii) such Participation shall not be made under circumstances
that require registration under the Securities Act of 1933, as amended, or qualification of any indenture under the Trust Indenture Act of 1939, as amended. Notwithstanding any such Participation, the Liquidity Provider agrees that (1) the
Liquidity Provider’s obligations under the Operative Agreements shall remain unchanged, and such participant shall have no rights or benefits as against Spirit or the Borrower or under any Operative Agreement, (2) the Liquidity Provider
shall remain solely responsible to the other parties to the Operative Agreements for the performance of such obligations, (3) the Liquidity Provider shall remain the maker of any Advances, and the other parties to the Operative Agreements shall
continue to deal solely and directly with the Liquidity Provider in connection with the Advances and the Liquidity Provider’s rights and obligations under the Operative Agreements, (4) the Liquidity Provider shall be solely responsible for
any withholding Taxes or any filing or reporting requirements relating to such Participation and shall hold the Borrower and Spirit and their respective successors, permitted assigns, affiliates, agents and servants harmless against the same and
(5) neither Spirit nor the Borrower shall be required to pay to the Liquidity Provider any amount under Section 3.01 or Section 3.03 greater than it would have been required to pay had there not been any grant of a Participation by
the Liquidity Provider. The Liquidity Provider may, in connection with any Participation or proposed Participation pursuant to this Section 7.08(b), disclose to the participant or proposed participant any information relating to the Operative
Agreements or to the parties thereto furnished to the Liquidity Provider thereunder or in connection therewith and permitted to be disclosed by the Liquidity Provider; provided, however,

  

					
		  	31	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
that prior to any such disclosure, the participant or proposed participant shall agree in writing for the express benefit of the Borrower and Spirit to preserve the confidentiality of any
confidential information included therein (subject to customary exceptions). 
 The Borrower acknowledges and agrees that the Liquidity
Provider’s source of funds may derive in part from its participants. Accordingly, in determining amounts due by the Borrower to the Liquidity Provider pursuant to Section 3.01 and Section 3.03 of this Agreement, references in this
Agreement to determinations, reserve, liquidity and capital adequacy requirements, increased costs, reduced receipts, additional amounts due pursuant to Section 3.03 as they pertain to the Liquidity Provider shall be deemed also to include
those of each of its participants that are commercial banking institutions and of whose participation the Borrower has been notified, in each case up to the maximum amount that would have been incurred by or attributable to the Liquidity Provider
directly had there not been any grant of a Participation by the Liquidity Provider, and references to the Liquidity Provider therein and in related definitions shall be treated as references to such participants where applicable; provided that in
any event, neither American nor the Borrower shall be required to pay any amount under Section 3.01 or Section 3.03 greater than it would have been required to pay had there not been any grant of a Participation by the Liquidity Provider.

 The Liquidity Provider shall, acting solely for this purpose as a non-fiduciary agent of the
Borrower, maintain a register on which it enters the name and address of each participant and the principal amounts (and stated interest) of each participant’s interest under this Agreement (the “Participant Register”);
provided that the Liquidity Provider shall not have any obligation to disclose all or any portion of the Participant Register (including the identity of any participant or any information relating to a participant’s interest in any
commitments, loans or its other obligations) to any Person except to the extent that such disclosure is necessary to establish that such commitment, loan or other obligation is in registered form under
Section 5f.103-1(c) of the United States Treasury Regulations. The entries in the Participant Register shall be conclusive absent manifest error, and the Liquidity Provider shall treat each Person whose
name is recorded in the Participant Register as the owner of such Participation for all purposes of this Agreement notwithstanding any notice to the contrary. 

(c) Notwithstanding the other provisions of this Section 7.08, the Liquidity Provider may assign and pledge all or any portion of the
Advances owing to it to any Federal Reserve Bank or the United States Treasury as collateral security pursuant to Regulation A of the Board of Governors of the Federal Reserve System and any Operating Circular issued by such Federal Reserve Bank;
provided that any payment in respect of such assigned Advances made by the Borrower to the Liquidity Provider in accordance with the terms of this Agreement shall satisfy the Borrower’s obligations hereunder in respect of such assigned
Advance to the extent of such payment. No such assignment shall release the Liquidity Provider from its obligations hereunder. 

  

					
		  	32	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 Section 7.09 Severability. To the extent permitted by applicable law, any provision
of this Agreement which is prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such
prohibition or unenforceability in any jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. 

Section 7.10 Governing Law. THIS AGREEMENT HAS BEEN DELIVERED IN THE STATE OF NEW YORK AND THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE. 

Section 7.11 Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity. (a) Each of the parties hereto, to the
extent it may do so under applicable law, for purposes hereof hereby (i) irrevocably submits itself to the non-exclusive jurisdiction of the courts of the State of New York sitting in the City of New York
and to the non-exclusive jurisdiction of the United States District Court for the Southern District of New York, for the purposes of any suit, action or other proceeding arising out of this Agreement, the
subject matter hereof or any of the transactions contemplated hereby brought by any party or parties hereto or thereto, or their successors or permitted assigns and (ii) waives, and agrees not to assert, by way of motion, as a defense, or
otherwise, in any such suit, action or proceeding, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this Agreement or the subject matter hereof or any of
the transactions contemplated hereby may not be enforced in or by such courts. 
 (b) THE BORROWER AND THE LIQUIDITY PROVIDER EACH HEREBY
AGREE TO WAIVE THEIR RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT OR ANY DEALINGS BETWEEN THEM RELATING TO THE SUBJECT MATTER OF THIS AGREEMENT AND THE RELATIONSHIP THAT IS BEING
ESTABLISHED, including, without limitation, contract claims, tort claims, breach of duty claims and all other common law and statutory claims. The Borrower and the Liquidity Provider each warrant and represent that it has reviewed this waiver with
its legal counsel, and that it knowingly and voluntarily waives its jury trial rights following consultation with such legal counsel. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THIS WAIVER IS IRREVOCABLE, AND CANNOT BE MODIFIED EITHER ORALLY OR IN
WRITING, AND THIS WAIVER SHALL APPLY TO ANY SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT. 
 (c) To the
extent that the Liquidity Provider or any of its properties has or may hereafter acquire any right of immunity, whether characterized as sovereign immunity or otherwise, and whether under the United States Foreign Sovereign Immunities Act of 1976
(or any successor legislation) or otherwise, from any legal proceedings, whether in the United States 

  

					
		  	33	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
or elsewhere, to enforce or collect upon this Agreement, including, without limitation, immunity from suit or service of process, immunity from jurisdiction or judgment of any court or tribunal
or execution of a judgment, or immunity of any of its property from attachment prior to any entry of judgment, or from attachment in aid of execution upon a judgment, the Liquidity Provider hereby irrevocably and expressly waives any such immunity,
and agrees not to assert any such right or claim in any such proceeding, whether in the United States or elsewhere. 
 Section 7.12
Counterparts. This Agreement may be executed in any number of counterparts (and each party shall not be required to execute the same counterpart). Each counterpart of this Agreement including a signature page or pages executed by each of the
parties hereto shall be an original counterpart of this Agreement, but all of such counterparts together shall constitute one instrument. 

Section 7.13 Entirety. This Agreement and the Intercreditor Agreement constitute the entire agreement of the parties hereto with
respect to the subject matter hereof and supersede all prior understandings and agreements of such parties. 
 Section 7.14
Headings. The headings of the various Articles and Sections herein and in the Table of Contents hereto are for convenience of reference only and shall not define or limit any of the terms or provisions hereof. 

Section 7.15 Liquidity Provider’s Obligation to Make Advances. EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT,
THE OBLIGATIONS OF THE LIQUIDITY PROVIDER TO MAKE ADVANCES HEREUNDER, AND THE BORROWER’S RIGHTS TO DELIVER NOTICES OF BORROWING REQUESTING THE MAKING OF ADVANCES HEREUNDER, SHALL BE ABSOLUTE, UNCONDITIONAL AND IRREVOCABLE, AND SHALL BE PAID OR
PERFORMED, IN EACH CASE STRICTLY IN ACCORDANCE WITH THE TERMS OF THIS AGREEMENT. 
 Section 7.16 Head Office Obligations. The
Liquidity Provider is Commonwealth Bank of Australia, New York Branch. The Liquidity Provider hereby agrees that, notwithstanding the place of booking or its jurisdiction of incorporation or organization, the obligations of the Liquidity Provider
hereunder are also the obligations of the head office of Commonwealth Bank of Australia in Sydney, Australia (the “Head Office”). Accordingly, any beneficiary of this Agreement will be able to proceed directly against the
Head Office, if the Liquidity Provider defaults in its obligations to such beneficiary under this Agreement. 
  

  

					
		  	34	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 IN WITNESS WHEREOF, the parties have caused this Agreement to be duly executed and delivered by
their respective officers thereunto duly authorized as of the date first set forth above. 
  

					
	WILMINGTON TRUST, NATIONAL ASSOCIATION, not in its individual capacity but solely as Subordination Agent, as agent and trustee for the Class B Trust, as Borrower
		
	By:	 	 /s/ Jacqueline Solone

		 	Name:    Jacqueline Solone
		 	Title:      Vice President
	
	COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH, as Liquidity Provider
		
	By:	 	 /s/ James M. Miller

		 	Name:    James M. Miller
		 	 Title:      Head of Americas Origination

               Structured Asset Finance

 Signature Page 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX I to 

REVOLVING CREDIT AGREEMENT 

FORM OF INTEREST ADVANCE NOTICE OF BORROWING 

INTEREST ADVANCE NOTICE OF BORROWING 

The undersigned, a duly authorized signatory of the undersigned borrower (the “Borrower”), hereby certifies to
Commonwealth Bank of Australia, New York Branch (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between the
Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 

(1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 

(2) The Borrower is delivering this Notice of Borrowing for the making of an Interest Advance by the Liquidity Provider to be
used for the payment of the interest on the Class B Certificates which is payable on                     ,
         (the “Distribution Date”) in accordance with the terms and provisions of the Class B Trust Agreement and the Class B Certificates, which Advance is requested to be
made on                     ,         . The Interest Advance should be remitted to [insert wire and account
details]. 
 (3) The amount of the Interest Advance requested hereby (i) is
$                    , to be applied in respect of the payment of the interest which is due and payable on the Class B Certificates on the
Distribution Date, (ii) does not include any amount with respect to the payment of principal of, or premium on, the Class B Certificates, or principal of, or interest or premium on the Class AA Certificates, the Class A
Certificates or any Additional Certificates, if issued, (iii) was computed in accordance with the provisions of the Class B Certificates, the Class B Trust Agreement and the Intercreditor Agreement (a copy of which computation is
attached hereto as Schedule I), (iv) does not exceed the Maximum Available Commitment on the date hereof and (v) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing. 

(4) Upon receipt by or on behalf of the Borrower of the amount requested hereby, (a) the Borrower will apply the same in
accordance with the terms of Section 3.05(b) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled
with other funds held by the Borrower. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, the making of the
Interest Advance as requested by this Notice of Borrowing shall automatically reduce, subject to reinstatement in accordance with the terms of the Liquidity Agreement, the Maximum Available Commitment by an amount equal to the amount of the Interest
Advance requested to be made hereby as set forth in clause (i) of paragraph (3) of this Notice of Borrowing and such reduction shall automatically result in corresponding reductions in the amounts available to be borrowed pursuant to a
subsequent Advance. 
 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
     day of             ,         . 
  

			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		  	I-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 SCHEDULE I TO INTEREST ADVANCE NOTICE OF BORROWING 

[Insert Copy of Computations in accordance with Interest Advance Notice of Borrowing] 

  

					
		  	I-3	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX II to 

REVOLVING CREDIT AGREEMENT 

FORM OF NON-EXTENSION ADVANCE NOTICE OF BORROWING 

NON-EXTENSION ADVANCE NOTICE OF BORROWING 

The undersigned, a duly authorized signatory of the undersigned subordination agent (the “Borrower”), hereby certifies
to Commonwealth Bank of Australia, New York Branch (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between
the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 

(1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 

(2) The Borrower is delivering this Notice of Borrowing for the making of the Non-Extension Advance by
the Liquidity Provider to be used for the funding of the Class B Cash Collateral Account in accordance with Section 3.05(d) of the Intercreditor Agreement, which Advance is requested to be made on
                    ,         . The Non-Extension Advance should be
remitted to [insert wire and account details]. 
 (3) The amount of the Non-Extension Advance
requested hereby (i) is $                    , which equals the Maximum Available Commitment on the date hereof and is to be applied in respect
of the funding of the Class B Cash Collateral Account in accordance with Sections 3.05(d) and 3.05(f) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of the principal of, or premium on, the
Class B Certificates, or principal of, or interest or premium on, the Class AA Certificates, the Class A Certificates or any Additional Certificates, if issued, (iii) was computed in accordance with the provisions of the
Class B Certificates, the Liquidity Agreement, the Class B Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I) and (iv) has not been and is not the subject of a prior or
contemporaneous Notice of Borrowing under the Liquidity Agreement. 
 (4) Upon receipt by or on behalf of the Borrower of the amount
requested hereby, (a) the Borrower will deposit such amount in the Class B Cash Collateral Account and apply the same in accordance with the terms of Sections 3.05(d) and 3.05(f) of the Intercreditor Agreement, (b) no portion of such
amount shall be applied by the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making
of the Non-Extension Advance as requested by this Notice of Borrowing shall automatically and irrevocably terminate the obligation of the Liquidity Provider to make further Advances under the Liquidity
Agreement and (B) following the making by the Liquidity Provider of the Non-Extension Advance requested by this Notice of Borrowing, the Borrower shall not be entitled to request any further Advances
under the Liquidity Agreement. 
 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
     day of                     ,         . 

 

			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		  	II-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 SCHEDULE I TO NON-EXTENSION ADVANCE NOTICE OF BORROWING

 [Insert Copy of computations in accordance with Non-Extension Advance Notice of Borrowing] 

  

					
		  	II-3	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX III to 

REVOLVING CREDIT AGREEMENT 

FORM OF DOWNGRADE ADVANCE NOTICE OF BORROWING 

DOWNGRADE ADVANCE NOTICE OF BORROWING 

The undersigned, a duly authorized signatory of the undersigned subordination agent (the “Borrower”), hereby certifies
to Commonwealth Bank of Australia, New York Branch (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between
the Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 

(1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 

(2) The Borrower is delivering this Notice of Borrowing for the making of the Downgrade Advance by the Liquidity Provider to be used for the
funding of the Class B Cash Collateral Account in accordance with Section 3.05(c)(iii) of the Intercreditor Agreement by reason of the Liquidity Facility provided under the Liquidity Agreement becoming a Downgraded Facility which has not
been replaced by a Replacement Liquidity Facility, which Advance is requested to be made on                     ,
        . The Downgrade Advance should be remitted to [insert wire and account details]. 
 (3) The
amount of the Downgrade Advance requested hereby (i) is $                    , which equals the Maximum Available Commitment on the date hereof
and is to be applied in respect of the funding of the Class B Cash Collateral Account in accordance with Sections 3.05(c) and 3.05(f) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of the
principal of, or premium on, the Class B Certificates, or principal of, or interest or premium on, the Class AA Certificates, the Class A Certificates or any Additional Certificates, if issued, (iii) was computed in accordance
with the provisions of the Class B Certificates, the Class B Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I) and (iv) has not been and is not the subject of a prior
or contemporaneous Notice of Borrowing under the Liquidity Agreement. 
 (4) Upon receipt by or on behalf of the Borrower of the amount
requested hereby, (a) the Borrower will deposit such amount in the Class B Cash Collateral Account and apply the same in accordance with the terms of Sections 3.05(c) and 3.05(f) of the Intercreditor Agreement, (b) no portion of such
amount shall be applied by the Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making
of the Downgrade Advance as requested by this Notice of Borrowing shall automatically reduce, subject to reinstatement in accordance with the terms of the Liquidity Agreement, the Maximum Available Commitment to zero and (B) following the
making by the Liquidity Provider of the Downgrade Advance requested by this Notice of Borrowing, subject to reinstatement in accordance with the terms of the Liquidity Agreement, the Borrower shall not be entitled to request any further Advances
under the Liquidity Agreement. 
 IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the
     day of                     ,         . 

 

			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		  	III-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 SCHEDULE I TO DOWNGRADE ADVANCE NOTICE OF BORROWING 

[Insert Copy of computations in accordance with Downgrade Advance Notice of Borrowing] 

  

					
		  	III-3	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX IV to 

REVOLVING CREDIT AGREEMENT 

FORM OF FINAL ADVANCE NOTICE OF BORROWING 

FINAL ADVANCE NOTICE OF BORROWING 

The undersigned, a duly authorized signatory of the undersigned borrower (the “Borrower”), hereby certifies to
Commonwealth Bank of Australia, New York Branch (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between the
Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 

(1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 

(2) The Borrower is delivering this Notice of Borrowing for the making of the Final Advance by the Liquidity Provider to be
used for the funding of the Class B Cash Collateral Account in accordance with Section 3.05(i) of the Intercreditor Agreement by reason of the receipt by the Borrower of a Termination Notice from the Liquidity Provider with respect to the
Liquidity Agreement, which Advance is requested to be made on                     ,         . The Final
Advance should be remitted to [insert wire and account details]. 
 (3) The amount of the Final Advance requested hereby
(i) is $                    , which equals the Maximum Available Commitment on the date hereof and is to be applied in respect of the funding of
the Class B Cash Collateral Account in accordance with Sections 3.05(f) and 3.05(i) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of principal of, or premium on, the Class B Certificates,
or principal of, or interest or premium on, the Class AA Certificates, the Class A Certificates or any Additional Certificates, if issued, (iii) was computed in accordance with the provisions of the Class B Certificates, the
Class B Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I) and (iv) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing. 

(4) Upon receipt by or on behalf of the Borrower of the amount requested hereby, (a) the Borrower will deposit such amount
in the Class B Cash Collateral Account and apply the same in accordance with the terms of Sections 3.05(f) and 3.05(i) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by the

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 

The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of the Final Advance as requested by this
Notice of Borrowing shall automatically and irrevocably terminate the obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement and (B) following the making by the Liquidity Provider of the Final Advance
requested by this Notice of Borrowing, the Borrower shall not be entitled to request any further Advances under the Liquidity Agreement. 

IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the      day of
            ,     . 
  

			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

 [* Bracketed language may be included at Borrower’s option.] 

  

					
		  	IV-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 SCHEDULE 1 TO FINAL ADVANCE NOTICE OF BORROWING 

[Insert Copy of Computations in accordance with Final Advance Notice of Borrowing] 

  

					
		  	IV-3	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX V to 

REVOLVING CREDIT AGREEMENT 
 FORM
OF SPECIAL TERMINATION 
 ADVANCE NOTICE OF BORROWING 

SPECIAL TERMINATION ADVANCE NOTICE OF BORROWING 

The undersigned, a duly authorized signatory of the undersigned borrower (the “Borrower”), hereby certifies to
Commonwealth Bank of Australia, New York Branch (the “Liquidity Provider”), with reference to the Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between the
Borrower and the Liquidity Provider (the “Liquidity Agreement”; the terms defined therein and not otherwise defined herein being used herein as therein defined or referenced), that: 

(1) The Borrower is the Subordination Agent under the Intercreditor Agreement. 

(2) The Borrower is delivering this Notice of Borrowing for the making of the Special Termination Advance by the Liquidity
Provider to be used for the funding of the Class B Cash Collateral Account in accordance with Section 3.05(k) of the Intercreditor Agreement by reason of the receipt by the Borrower of a Special Termination Notice from the Liquidity
Provider with respect to the Liquidity Agreement, which Advance is requested to be made on                     . 

(3) The amount of the Special Termination Advance requested hereby (i) is
$                    , which equals the Maximum Available Commitment on the date hereof and is to be applied in respect of the funding of the
Class B Cash Collateral Account in accordance with Sections 3.05(f) and 3.05(k) of the Intercreditor Agreement, (ii) does not include any amount with respect to the payment of principal of, or premium on, the Class B
Certificates, or principal of, or interest or premium on, the Class AA Certificates, the Class A Certificates or any Additional Certificates, if issued, (iii) was computed in accordance with the provisions of the Class B
Certificates, the Class B Trust Agreement and the Intercreditor Agreement (a copy of which computation is attached hereto as Schedule I) and (iv) has not been and is not the subject of a prior or contemporaneous Notice of Borrowing.

 (4) Upon receipt by or on behalf of the Borrower of the amount requested hereby, (a) the Borrower shall deposit such
amount in the Class B Cash Collateral Account and apply the same in accordance with the terms of Sections 3.05(f) and 3.05(k) of the Intercreditor Agreement, (b) no portion of such amount shall be applied by the

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
Borrower for any other purpose and (c) no portion of such amount until so applied shall be commingled with other funds held by the Borrower. 

The Borrower hereby acknowledges that, pursuant to the Liquidity Agreement, (A) the making of the Special Termination Advance as
requested by this Notice of Borrowing shall automatically and irrevocably terminate the obligation of the Liquidity Provider to make further Advances under the Liquidity Agreement; and (B) following the making by the Liquidity Provider of the
Special Termination Advance requested by this Notice of Borrowing, the Borrower shall not be entitled to request any further Advances under the Liquidity Agreement. 

IN WITNESS WHEREOF, the Borrower has executed and delivered this Notice of Borrowing as of the      day of
                ,     . 
  

			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		  	V-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 SCHEDULE 1 TO SPECIAL TERMINATION ADVANCE NOTICE OF BORROWING 

[Insert Copy of Computations in accordance with Special Termination Advance Notice of Borrowing] 

  

					
		  	V-3	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX VI to 

REVOLVING CREDIT AGREEMENT 

FORM OF NOTICE OF TERMINATION 

NOTICE OF TERMINATION 

[Date] 
 Wilmington Trust,
National Association, 
 as Subordination Agent, 

as Borrower 
 1100 North Market Street 

Wilmington, Delaware 19890-1605 
 Reference: Spirit Airlines 2017-1B EETC 
 Attention: Corporate Trust Administration – Jacqueline Solone 

Telephone: (302) 636-6387 

Facsimile: (302) 636-4140 
  

	Re:	Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between Wilmington Trust, National Association, as Subordination Agent, as agent and trustee for the
Spirit Airlines Pass Through Trust 2017-1B, as Borrower, and Commonwealth Bank of Australia, New York Branch (the “Liquidity Agreement”) 

Ladies and Gentlemen: 
 You are hereby notified
that pursuant to Section 6.01(a) of the Liquidity Agreement, by reason of the occurrence and continuance of a Liquidity Event of Default and the existence of a Performing Note Deficiency (each as defined in the Liquidity Agreement), we are
giving this notice to you in order to cause (i) our obligations to make Advances (as defined in the Liquidity Agreement) under such Liquidity Agreement to terminate on the fifth Business Day after the date on which you receive this notice and
(ii) you to request a Final Advance under the Liquidity Agreement pursuant to Section 2.02(c) of the Liquidity Agreement and Section 3.05(i) of the Intercreditor Agreement (as defined in the Liquidity Agreement) as a consequence of
your receipt of this notice. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 THIS NOTICE IS THE “NOTICE OF TERMINATION” PROVIDED FOR UNDER THE LIQUIDITY
AGREEMENT. OUR OBLIGATIONS TO MAKE ADVANCES UNDER THE LIQUIDITY AGREEMENT WILL TERMINATE ON THE FIFTH BUSINESS DAY AFTER THE DATE ON WHICH YOU RECEIVE THIS NOTICE. 

 

			
	Very truly yours,
	
	COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH,
	as Liquidity Provider

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

	cc:	Wilmington Trust, National Association, as Class B Trustee 

	 	Spirit	Airlines, Inc. 

  

					
		  	VI-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX VII to 

REVOLVING CREDIT AGREEMENT 

FORM OF NOTICE OF SPECIAL TERMINATION 

NOTICE OF SPECIAL TERMINATION 

[Date] 
 Wilmington Trust, National Association,

 as Subordination Agent, 
 as
Borrower 
 1100 North Market Street 
 Wilmington, Delaware
19890-1605 
 Reference: Spirit Airlines 2017-1B EETC 

Attention: Corporate Trust Administration – Jacqueline Solone 

Telephone: (302) 636-6387 

Facsimile: (302) 636-4140 
  

	Re:	Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between Wilmington Trust, National Association, as Subordination Agent, as agent and trustee for the
Spirit Airlines Pass Through Trust 2017-1B, as Borrower, and Commonwealth Bank of Australia, New York Branch (the “Liquidity Agreement”) 

Ladies and Gentlemen: 
 You are hereby notified
that pursuant to Section 6.01(b) of the Liquidity Agreement, by reason of the aggregate Pool Balance of the Class B Certificates exceeding the aggregate outstanding principal amount of the Series B Equipment Notes (other than any
Series B Equipment Notes previously sold or with respect to which the Aircraft related to such Series B Equipment Notes has been disposed of) during the 18-month period prior to February 15,
2026, we are giving this notice to you in order to cause (i) our obligations to make Advances (as defined in the Liquidity Agreement) under such Liquidity Agreement to terminate on the fifth Business Day after the date on which you receive this
notice and (ii) you to request a Special Termination Advance under the Liquidity Agreement pursuant to Section 2.02(d) of the Liquidity Agreement and Section 3.05(k) of the Intercreditor Agreement (as defined in the Liquidity
Agreement) as a consequence of your receipt of this notice. 

  

					
		  		  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 THIS NOTICE IS THE “NOTICE OF SPECIAL TERMINATION” PROVIDED FOR UNDER THE LIQUIDITY
AGREEMENT. OUR OBLIGATIONS TO MAKE ADVANCES UNDER THE LIQUIDITY AGREEMENT WILL TERMINATE ON THE FIFTH BUSINESS DAY AFTER THE DATE ON WHICH YOU RECEIVE THIS NOTICE. 

 

			
	Very truly yours,
	
	COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH,
	as Liquidity Provider

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

	cc:	Wilmington Trust, National Association, as Class B Trustee 

	 	Spirit	Airlines, Inc. 

  

					
		  	VII-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 ANNEX VIII to 

REVOLVING CREDIT AGREEMENT 

FORM OF NOTICE OF REPLACEMENT SUBORDINATION AGENT 

NOTICE OF REPLACEMENT SUBORDINATION AGENT 

[Date] 
 Attention: 

 

	Re:	Revolving Credit Agreement (2017-1B), dated as of November 28, 2017, between Wilmington Trust, National Association, as Subordination Agent, as agent and trustee for the
Spirit Airlines Pass Through Trust 2017-1B, as Borrower, and Commonwealth Bank of Australia, New York Branch (the “Liquidity Agreement”) 

Ladies and Gentlemen: 
 For value received, the
undersigned beneficiary hereby irrevocably transfers to: 
 [Name of Transferee] 

[Address of Transferee] 
 all rights and
obligations of the undersigned as Borrower under the Liquidity Agreement referred to above. The transferee has succeeded the undersigned as Subordination Agent under the Intercreditor Agreement referred to in the first paragraph of the Liquidity
Agreement, pursuant to the terms of Section 7.01 of the Intercreditor Agreement. 
 By this transfer, all rights of the undersigned as
Borrower under the Liquidity Agreement are transferred to the transferee and the transferee shall hereafter have the sole rights and obligations as Borrower thereunder. The undersigned shall pay any costs and expenses of such transfer, including,
but not limited to, transfer taxes or governmental charges. 
 This transfer shall be effective as of [specify time and date]. 

  

					
		  	VIII-1	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)

 
			
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent, as Borrower

 
			
		
	By:	 	  

		 	Name:
		 	Title:

  

					
		  	VIII-2	  	 Revolving Credit Agreement (Class B)

(Spirit 2017-1 EETC)EX-4.8

 Exhibit 4.8 

EXECUTION VERSION 

INTERCREDITOR AGREEMENT 
 (2017-1) 
 Dated as of November 28, 2017 

among 
 WILMINGTON TRUST, NATIONAL
ASSOCIATION 
 as Trustee of the 

Spirit Airlines Pass Through Trust 2017-1AA, 

Spirit Airlines Pass Through Trust 2017-1A, 

and 
 Spirit Airlines Pass Through
Trust 2017-1B 
 COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH 

as Class AA Liquidity Provider, 

Class A Liquidity Provider 

and 
 Class B Liquidity
Provider, 
 and 
 WILMINGTON
TRUST, NATIONAL ASSOCIATION 
 as Subordination Agent 

  

					
		  		  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 Table of Contents 

 

					
	 	 	 	  	Page
	 ARTICLE I
  
	  	
	DEFINITIONS	  	
			
	Section 1.01	 	Definitions	  	1
	 ARTICLE II
  
	  	
	TRUST ACCOUNTS; CONTROLLING PARTY	  	
			
	Section 2.01	 	Agreement to Terms of Subordination; Payments from Monies Received Only	  	20
	Section 2.02	 	Trust Accounts	  	21
	Section 2.03	 	Deposits to the Collection Account and Special Payments Account	  	21
	Section 2.04	 	Distributions of Special Payments	  	22
	Section 2.05	 	Designated Representatives	  	23
	Section 2.06	 	Controlling Party	  	24
		
	 ARTICLE III
  
	  	
	RECEIPT, DISTRIBUTION AND APPLICATION OF AMOUNTS RECEIVED	  	
			
	Section 3.01	 	Written Notice of Distribution	  	25
	Section 3.02	 	Distribution of Amounts on Deposit in the Collection Account	  	27
	Section 3.03	 	Other Payments	  	29
	Section 3.04	 	Payments to the Trustees and the Liquidity Providers	  	30
	Section 3.05	 	Liquidity Facilities	  	30
		
	 ARTICLE IV
  
	  	
	EXERCISE OF REMEDIES	  	
			
	Section 4.01	 	Directions from the Controlling Party	  	38
	Section 4.02	 	Remedies Cumulative	  	39
	Section 4.03	 	Discontinuance of Proceedings	  	40
	Section 4.04	 	Right of Certificateholders and the Liquidity Providers to Receive Payments Not to Be Impaired	  	40
		
	 ARTICLE V
  
	  	
	DUTIES OF THE SUBORDINATION AGENT; AGREEMENTS OF TRUSTEES, ETC.	  	
			
	Section 5.01	 	Notice of Indenture Event of Default or Triggering Event	  	40
	Section 5.02	 	Indemnification	  	41
	Section 5.03	 	No Duties Except as Specified in Intercreditor Agreement	  	41
	Section 5.04	 	Notice from the Liquidity Providers and Trustees	  	42

  

					
		  		  	 Intercreditor Agreement (2017-1)

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	 ARTICLE VI
  
	  	
	THE SUBORDINATION AGENT	  	

  

					
	Section 6.01	 	Authorization; Acceptance of Trusts and Duties	  	42
	Section 6.02	 	Absence of Duties	  	42
	Section 6.03	 	No Representations or Warranties as to Documents	  	42
	Section 6.04	 	No Segregation of Monies; No Interest	  	42
	Section 6.05	 	Reliance; Agents; Advice of Counsel	  	42
	Section 6.06	 	Capacity in Which Acting	  	43
	Section 6.07	 	Compensation	  	43
	Section 6.08	 	May Become Certificateholder	  	43
	Section 6.09	 	Subordination Agent Required; Eligibility	  	43
	Section 6.10	 	Money to Be Held in Trust	  	44
	Section 6.11	 	Notice of Substitution or Replacement of Airframe	  	44
	
	 ARTICLE VII
  

	SUCCESSOR SUBORDINATION AGENT
			
	Section 7.01	 	Replacement of Subordination Agent; Appointment of Successor	  	44
	
	 ARTICLE VIII
  

	SUPPLEMENTS AND AMENDMENTS
			
	Section 8.01	 	Amendments, Waivers, Etc.	  	45
	Section 8.02	 	Subordination Agent Protected	  	49
	Section 8.03	 	Effect of Supplemental Agreements	  	50
	Section 8.04	 	Notice to Rating Agencies	  	50
	
	 ARTICLE IX
  

	MISCELLANEOUS
			
	Section 9.01	 	Termination of Intercreditor Agreement	  	50
	Section 9.02	 	Intercreditor Agreement for Benefit of Trustees, Liquidity Providers and Subordination Agent	  	50
	Section 9.03	 	Notices	  	50
	Section 9.04	 	Severability	  	51
	Section 9.05	 	No Oral Modifications or Continuing Waivers	  	51
	Section 9.06	 	Successors and Assigns	  	52
	Section 9.07	 	Headings	  	52
	Section 9.08	 	Counterparts	  	52
	Section 9.09	 	Subordination	  	52
	Section 9.10	 	Governing Law	  	53
	Section 9.11	 	Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity	  	53
	Section 9.12	 	Non-Petition	  	54

  

  

					
		  	ii	  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 INTERCREDITOR AGREEMENT 

This INTERCREDITOR AGREEMENT, dated as of November 28, 2017, is made by and among WILMINGTON TRUST, NATIONAL ASSOCIATION, a national
banking association (in its individual capacity, together with its successors and permitted assigns, “WTNA”), not in its individual capacity but solely as trustee of each Trust (such term and other capitalized terms used herein
without definition being defined as provided in Article I); COMMONWEALTH BANK OF AUSTRALIA, NEW YORK BRANCH (“CBA”), as Class AA Liquidity Provider, Class A Liquidity Provider and Class B Liquidity Provider, and
WILMINGTON TRUST, NATIONAL ASSOCIATION, not in its individual capacity except as expressly set forth herein, but solely as Subordination Agent and trustee hereunder (in such capacity, together with any successor appointed pursuant to
Article VII, the “Subordination Agent”). 
 WHEREAS, pursuant to each Indenture with respect to an Aircraft, Spirit
will issue on a recourse basis three series of Equipment Notes secured by, among other things, such Aircraft and may issue one or more series of Additional Equipment Notes and one or more series of Refinancing Equipment Notes; 

WHEREAS, pursuant to each Participation Agreement, each Trust will acquire Equipment Notes having an interest rate identical to the interest
rate applicable to the Certificates issued by such Trust; 
 WHEREAS, pursuant to each Trust Agreement, the Trust created thereby proposes
to issue a single Class of Certificates bearing the interest rate and having the final distribution date described in such Trust Agreement on the terms and subject to the conditions set forth therein; 

WHEREAS, pursuant to the Underwriting Agreement, the Underwriters propose to purchase the Certificates; 

WHEREAS, the Liquidity Provider proposes to enter into three separate revolving credit agreements with the Subordination Agent, as agent and
trustee for the Trustee of each of the Class AA Trust, the Class A Trust and the Class B Trust, respectively, for the benefit of the Certificateholders of such Trust; and 

WHEREAS, it is a condition precedent to the obligations of the Underwriters under the Underwriting Agreement that the Subordination Agent, the
Trustees and the Liquidity Provider agree to the terms of subordination set forth in this Agreement in respect of each Class of Certificates, and the Subordination Agent, the Trustees and the Liquidity Provider, by entering into this Agreement,
hereby acknowledge and agree to such terms of subordination and the other provisions of this Agreement; 
 NOW, THEREFORE, in consideration
of the mutual agreements herein contained, and of other good and valuable consideration the receipt and adequacy of which are hereby acknowledged, the parties hereto agree as follows: 

ARTICLE I 
 DEFINITIONS

 Section 1.01    Definitions. (a) The definitions stated herein apply equally to the singular and
the plural forms of the terms defined. 
 (b)    All references in this Agreement to designated “Articles”,
“Sections” and other subdivisions are to the designated Articles, Sections and other subdivisions of this Agreement. 

  

					
		  	1	  	 Intercreditor Agreement (2017-1)

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 (c) The words “herein”, “hereof” and “hereunder” and other words of
similar import refer to this Agreement as a whole and not to any particular Article, Section or other subdivision. 
 (d) Unless the context
otherwise requires, whenever the words “including”, “include” or “includes” are used herein, it shall be deemed to be followed by the phrase “without limitation”. 

(e) All references in this Agreement to a Person shall include successors and permitted assigns of such Person. 

(f) For purposes of this Agreement, unless the context otherwise requires, the following capitalized terms shall have the following meanings:

 “60-Day Period” means the 60-day
period specified in Section 1110(a)(2)(A) of the Bankruptcy Code. 
 “Acceleration” means, with respect to the
amounts payable in respect of the Equipment Notes issued under any Indenture, such amounts becoming immediately due and payable by declaration or otherwise. “Accelerate”, “Accelerated” and “Accelerating” have meanings
correlative to the foregoing. 
 “Actual Disposition Event” means, in respect of any Equipment Note: (i) the
sale or disposition by the applicable Loan Trustee of the Aircraft securing such Equipment Note for cash, (ii) the occurrence of the mandatory redemption date for such Equipment Note following an Event of Loss (as defined in such Indenture)
with respect to such Aircraft or (iii) the sale by the Subordination Agent of such Equipment Note for cash. 
 “Additional
Certificateholder” has the meaning specified in Section 8.01(d). 
 “Additional Certificates” has
the meaning specified in Section 8.01(d). 
 “Additional Equipment Notes” has the meaning specified in
Section 8.01(d). 
 “Additional Trust” has the meaning specified in Section 8.01(d). 

“Additional Trust Agreement” has the meaning specified in Section 8.01(d). 

“Additional Trustee” has the meaning specified in Section 8.01(d). 

“Administration Expenses” has the meaning specified in clause “first” of Section 3.02. 

“Advance” means, with respect to any Liquidity Facility, any Advance as defined in such Liquidity Facility. 

“Affiliate” means, with respect to any Person, any other Person directly or indirectly controlling, controlled by or
under direct or indirect common control with such Person. For the purposes of this definition, “control”, when used with respect to any specified Person, means the power, directly or indirectly, to direct or cause the direction of the
management and policies of such Person, whether through the ownership of voting securities or by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 

“Agreement” means this Intercreditor Agreement, as it may be amended, supplemented or otherwise modified from time to
time. 
 “Aircraft” means, with respect to each Indenture, the “Aircraft” referred to therein. 

“Appraisal” has the meaning specified in Section 4.01(a)(iv). 

  

					
		  	2	  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 “Appraised Current Market Value” of any Aircraft means the lower of the
average and the median of the three most recent Post-Default Appraisals of such Aircraft. 
 “Appraisers” means
Aircraft Information Services, Inc., BK Associates, Inc. and Morten Beyer & Agnew, Inc. or, so long as the Person entitled or required hereunder to select such Appraiser acts reasonably, any other nationally recognized appraiser reasonably
satisfactory to the Subordination Agent and the Controlling Party. 
 “Available Amount” means, with respect to any
Liquidity Facility on any drawing date, subject to the proviso contained in the first sentence of Section 3.05(g), an amount equal to (a) the Stated Amount of such Liquidity Facility at such time, less (b) the aggregate amount of each
Interest Drawing honored by the Liquidity Provider under such Liquidity Facility on or prior to such date that has not been reimbursed or reinstated as of such date; provided that, following a Downgrade Drawing (subject to any reinstatement
of the obligations of such Liquidity Provider pursuant to Section 2.06(d) of such Liquidity Facility), a Non-Extension Drawing, a Special Termination Drawing or a Final Drawing under such Liquidity
Facility, the Available Amount of such Liquidity Facility shall be zero. 
 “Bankruptcy Code” means the United
States Bankruptcy Code, 11 United States Code §§101 et seq., as amended, or any successor statutes thereto. 

“Basic Agreement” means that certain Pass Through Trust Agreement, dated as of August 11, 2015, between Spirit
and WTNA, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms, but does not include any Trust Supplement. 

“Business Day” means, with respect to the Certificates of any Class, any day other than a Saturday, or a Sunday or a
day on which commercial banks are required or authorized to close in New York, New York, Miramar, Florida, Wilmington, Delaware, or, so long as any Certificate is outstanding, the city and state in which any Trustee, the Subordination Agent or any
related Loan Trustee maintains its Corporate Trust Office or receives and disburses funds, and that, solely with respect to draws under any Liquidity Facility, also is a “Business Day” as defined in such Liquidity Facility. 

“Cash Collateral Account” means the Class AA Cash Collateral Account, the Class A Cash Collateral Account or
the Class B Cash Collateral Account, as applicable. 
 “CBA” has the meaning specified in the introductory
paragraph to this Agreement. 
 “Certificate” means a Class AA Certificate, a Class A Certificate or a
Class B Certificate, as applicable. 
 “Certificate Buy-Out Event”
means that a Spirit Bankruptcy Event has occurred and is continuing and either of the following events has occurred: (A) (i) the 60-Day Period has expired, and (ii) Spirit has not entered into
one or more agreements under Section 1110(a)(2)(A) of the Bankruptcy Code to perform all of its obligations under all of the Indentures and cured defaults under all of the Indentures in accordance with Section 1110(a)(2)(B) of the
Bankruptcy Code or, if it has entered into such agreements, has at any time thereafter failed to cure any default under any of the Indentures in accordance with Section 1110(a)(2)(B) of the Bankruptcy Code; or (B) prior to the expiry of
the 60-Day Period, Spirit shall have abandoned any Aircraft. 

“Certificateholder” means, with respect to any Class of Certificates, the Person in whose name a Certificate is
registered in the Register for the Certificates of such Class. 
 “Citizen of the United States” has the meaning
specified for such term in Section 40102(a)(15) of Title 49 of the United States Code or any similar legislation of the United States enacted in substitution or replacement therefor. 

  

					
		  	3	  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 “Class” means a single class of Certificates issued by a Trust pursuant
to a Trust Agreement. 
 “Class AA Cash Collateral Account” means, in respect of
the Class AA Liquidity Facility, an Eligible Deposit Account in the name of the Subordination Agent maintained at an Eligible Institution, which shall be the Subordination Agent if it so qualifies, into which amounts shall be deposited as
referred to in Section 3.05(f). 
 “Class AA Certificateholder” means, at any
time, any Certificateholder of one or more Class AA Certificates. 
 “Class AA
Certificates” means the certificates issued by the Class AA Trust, substantially in the form of Exhibit A to the Class AA Trust Agreement, and authenticated by the Class AA Trustee, representing Fractional Undivided
Interests in the Class AA Trust, and any certificates issued in exchange therefor or replacement thereof pursuant to the terms of the Class AA Trust Agreement. 

“Class AA Liquidity Expenses” means all Class AA Liquidity Obligations other
than (i) the principal amount of any Drawings under the Class AA Liquidity Facility and (ii) any interest accrued on any Class AA Liquidity Obligations. 

“Class AA Liquidity Facility” means, initially, the Revolving Credit Agreement (2017-1AA), dated as of the date hereof, between the Subordination Agent, as agent and trustee for the Class AA Trustee, and CBA and, from and after the replacement of such agreement pursuant hereto, the
Replacement Liquidity Facility therefor, if any, in each case as amended, supplemented or otherwise modified from time to time in accordance with its terms; provided that, for purposes of any obligation of Spirit, no amendment, modification
or supplement to, or substitution or replacement of, any Class AA Liquidity Facility shall be effective unless consented to by Spirit. 

“Class AA Liquidity Obligations” means all principal, interest, fees and other
amounts owing to the Class AA Liquidity Provider under the Class AA Liquidity Facility, Section 4.02 of the Participation Agreements or the applicable Fee Letter. 

“Class AA Liquidity Provider” means CBA, together with any Replacement Liquidity
Provider that has issued a Replacement Liquidity Facility to replace the Class AA Liquidity Facility pursuant to Section 3.05(c) or 3.05(e). 

“Class AA Trust” means the Spirit Airlines Pass Through Trust 2017-1AA created and administered pursuant to the Class AA Trust Agreement. 

“Class AA Trust Agreement” means the Basic Agreement, as supplemented by Trust
Supplement No. 2017-1AA thereto, dated as of the date hereof, governing the creation and administration of the Spirit Airlines Pass Through Trust 2017-1AA and the
issuance of the Class AA Certificates, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Class AA Trustee” means WTNA, not in its individual capacity except as expressly set
forth in the Class AA Trust Agreement, but solely as trustee under the Class AA Trust Agreement, together with any successor trustee appointed pursuant thereto. 

“Class A Adjusted Interest” means, as of any Current Distribution Date: (I) any
interest described in clause (II) of this definition accrued prior to the immediately preceding Distribution Date which remains unpaid and (II) the sum of (A) interest determined at the Stated Interest Rate for the Class A
Certificates for the period commencing on, and including, the immediately preceding 

  

					
		  	4	  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 
Distribution Date (or, if the Current Distribution Date is the first Distribution Date, the Closing Date) and ending on, but excluding, the Current Distribution Date, on the Eligible A Pool
Balance on such Current Distribution Date and (B) the sum of interest for each Series A Equipment Note with respect to which, or with respect to the Aircraft with respect to which such Equipment Note was issued, a disposition,
distribution, sale or Deemed Disposition Event has occurred since the immediately preceding Distribution Date (but only if no such event has previously occurred with respect to such Series A Equipment Note), determined at the Stated Interest
Rate for the Class A Certificates for each day during the period commencing on, and including, the immediately preceding Distribution Date (or, if the Current Distribution Date is the first Distribution Date, the Closing Date) and ending on,
but excluding, the date of the earliest of such disposition, distribution, sale or Deemed Disposition Event with respect to such Series A Equipment Note or such Aircraft, as the case may be, on the principal amount of such Series A
Equipment Note calculated pursuant to clause (B)(i), (ii), (iii) or (iv), as applicable, of the definition of Eligible A Pool Balance. 

“Class A Cash Collateral Account” means, in respect of the Class A Liquidity
Facility, an Eligible Deposit Account in the name of the Subordination Agent maintained at an Eligible Institution, which shall be the Subordination Agent if it so qualifies, into which amounts shall be deposited as referred to in
Section 3.05(f). 
 “Class A Certificateholder” means, at any time, any
Certificateholder of one or more Class A Certificates. 
 “Class A
Certificates” means the certificates issued by the Class A Trust, substantially in the form of Exhibit A to the Class A Trust Agreement, and authenticated by the Class A Trustee, representing Fractional Undivided
Interests in the Class A Trust, and any certificates issued in exchange therefor or replacement thereof pursuant to the terms of the Class A Trust Agreement. 

“Class A Liquidity Expenses” means all Class A Liquidity Obligations other than
(i) the principal amount of any Drawings under the Class A Liquidity Facility and (ii) any interest accrued on any Class A Liquidity Obligations. 

“Class A Liquidity Facility” means, initially, the Revolving Credit Agreement (2017-1A), dated as of the date hereof, between the Subordination Agent as agent and trustee for the Class A Trustee, and CBA and, from and after the replacement of such agreement pursuant hereto, the
Replacement Liquidity Facility therefor, if any, in each case as amended, supplemented or otherwise modified from time to time in accordance with its terms; provided that, for purposes of any obligation of Spirit, no amendment, modification
or supplement to, or substitution or replacement of, any Class A Liquidity Facility shall be effective unless consented to by Spirit. 

“Class A Liquidity Obligations” means all principal, interest, fees and other amounts
owing to the Class A Liquidity Provider under the Class A Liquidity Facility, Section 4.02 of the Participation Agreements or the applicable Fee Letter. 

“Class A Liquidity Provider” means CBA, together with any Replacement Liquidity
Provider that has issued a Replacement Liquidity Facility to replace the Class A Liquidity Facility pursuant to Section 3.05(c) or 3.05(e). 

“Class A Trust” means the Spirit Airlines Pass Through Trust 2017-1A created and administered pursuant to the Class A Trust Agreement. 

“Class A Trust Agreement” means the Basic Agreement, as supplemented by Trust
Supplement No. 2017-1A thereto, dated as of the date hereof, governing the creation and administration of the Spirit Airlines Pass Through Trust 2017-1A and the
issuance of the Class A Certificates, as the 

  

					
		  	5	  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 
same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Class A Trustee” means WTNA, not in its individual capacity except as expressly set
forth in the Class A Trust Agreement, but solely as trustee under the Class A Trust Agreement, together with any successor trustee appointed pursuant thereto. 

“Class B Adjusted Interest” means, as of any Current Distribution Date: (I) any
interest described in clause (II) of this definition accrued prior to the immediately preceding Distribution Date which remains unpaid and (II) the sum of (A) interest determined at the Stated Interest Rate for the Class B
Certificates for the period commencing on, and including, the immediately preceding Distribution Date (or, if the Current Distribution Date is the first Distribution Date, the Closing Date) and ending on, but excluding, the Current Distribution
Date, on the Eligible B Pool Balance on such Current Distribution Date and (B) the sum of interest for each Series B Equipment Note with respect to which, or with respect to the Aircraft with respect to which such Equipment Note was
issued, a disposition, distribution, sale or Deemed Disposition Event has occurred since the immediately preceding Distribution Date (but only if no such event has previously occurred with respect to such Series B Equipment Note), determined at
the Stated Interest Rate for the Class B Certificates for each day during the period commencing on, and including, the immediately preceding Distribution Date (or, if the Current Distribution Date is the first Distribution Date, the Closing
Date) and ending on, but excluding, the date of the earliest of such disposition, distribution, sale or Deemed Disposition Event with respect to such Series B Equipment Note or such Aircraft, as the case may be, on the principal amount of such
Series B Equipment Note calculated pursuant to clause (B)(i), (ii), (iii) or (iv), as applicable, of the definition of Eligible B Pool Balance. 

“Class B Cash Collateral Account” means, in respect of the Class B Liquidity
Facility, an Eligible Deposit Account in the name of the Subordination Agent maintained at an Eligible Institution, which shall be the Subordination Agent if it so qualifies, into which amounts shall be deposited as referred to in
Section 3.05(f). 
 “Class B Certificateholder” means, at any time, any
Certificateholder of one or more Class B Certificates. 
 “Class B
Certificates” means the certificates issued by the Class B Trust, substantially in the form of Exhibit A to the Class B Trust Agreement, and authenticated by the Class B Trustee, representing Fractional Undivided
Interests in the Class B Trust, and any certificates issued in exchange therefor or replacement thereof pursuant to the terms of the Class B Trust Agreement. 

“Class B Liquidity Expenses” means all Class B Liquidity Obligations other than
(i) the principal amount of any Drawings under the Class B Liquidity Facility and (ii) any interest accrued on any Class B Liquidity Obligations. 

“Class B Liquidity Facility” means, initially, the Revolving Credit Agreement (2017-1B), dated as of the date hereof, between the Subordination Agent as agent and trustee for the Class B Trustee, and CBA and, from and after the replacement of such agreement pursuant hereto, the
Replacement Liquidity Facility therefor, if any, in each case as amended, supplemented or otherwise modified from time to time in accordance with its terms; provided that, for purposes of any obligation of Spirit, no amendment, modification
or supplement to, or substitution or replacement of, any Class B Liquidity Facility shall be effective unless consented to by Spirit. 

“Class B Liquidity Obligations” means all principal, interest, fees and other amounts
owing to the Class B Liquidity Provider under the Class B Liquidity Facility, Section 4.02 of the Participation Agreements or the applicable Fee Letter. 

  

					
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 “Class B Liquidity Provider” means CBA,
together with any Replacement Liquidity Provider that has issued a Replacement Liquidity Facility to replace the Class B Liquidity Facility pursuant to Section 3.05(c) or 3.05(e). 

“Class B Trust” means the Spirit Airlines Pass Through Trust 2017-1B created and administered pursuant to the Class B Trust Agreement. 

“Class B Trust Agreement” means the Basic Agreement, as supplemented by Trust
Supplement No. 2017-1B thereto, dated as of the date hereof, governing the creation and administration of the Spirit Airlines Pass Through Trust 2017-1B and the
issuance of the Class B Certificates, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Class B Trustee” means WTNA, not in its individual capacity except as expressly set
forth in the Class B Trust Agreement, but solely as trustee under the Class B Trust Agreement, together with any successor trustee appointed pursuant thereto. 

“Closing Date” means November 28, 2017. 

“Code” means the Internal Revenue Code of 1986, as amended from time to time, and Treasury Regulations promulgated
thereunder. 
 “Collateral” means, with respect to any Indenture, the “Collateral” referred to therein.

 “Collection Account” means the Eligible Deposit Account established by the Subordination Agent pursuant to
Section 2.02(a) in and from which the Subordination Agent shall make deposits and withdrawals in accordance with this Agreement. 

“Combination Replacement Liquidity Facility” has the meaning set forth in the definition of “Replacement
Liquidity Facility”. 
 “Consent Notice” has the meaning set forth in Section 3.05(d)(ii). 

“Consent Period” has the meaning set forth in Section 3.05(d)(ii). 

“Controlling Party” means the Person entitled to act as such pursuant to the terms of Section 2.06. 

“Corporate Trust Office” means, with respect to any Trustee, the Subordination Agent or any Loan Trustee, the office
of such Person in the city at which, at any particular time, its corporate trust business shall be principally administered. 

“Current Distribution Date” means a Distribution Date specified as a reference date for calculating the Expected
Distributions with respect to the Certificates of any Trust as of such Distribution Date. 
 “Deemed Disposition
Event” means, in respect of any Equipment Note, the continuation of an Indenture Event of Default in respect of such Equipment Note without an Actual Disposition Event occurring in respect of such Equipment Note for a period of five
years from the date of the occurrence of such Indenture Event of Default. 
 “Delivery Period Termination Date” has
the meaning specified in the Note Purchase Agreement. 

  

					
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 “Deposit Agreement” means, subject to Section 5 of the Note Purchase
Agreement, with respect to any Class of Certificates, the Deposit Agreement pertaining to such Class, dated as of the date hereof, between the Escrow Agent and the Depositary, as the same may be amended, modified or supplemented from time to
time in accordance with the terms thereof. 
 “Depositary” means, subject to Section 5 of the Note Purchase
Agreement, Citibank, N.A., as depositary under each Deposit Agreement. 
 “Deposits”, with respect to any
Class of Certificates, has the meaning set forth in the Deposit Agreement pertaining to such Class. 
 “Designated
Representatives” means the Subordination Agent Representatives, the Trustee Representatives and the LP Representatives identified under Section 2.05. 

“Distribution Date” means a Regular Distribution Date or a Special Distribution Date. 

“Dollars” or “$” means the lawful currency of the
United States. 
 “Downgrade Date” has the meaning specified in Section 3.05(c)(i). 

“Downgrade Drawing” has the meaning specified in Section 3.05(c)(iii). 

“Downgrade Event”, with respect to any Liquidity Facility has the meaning specified in such Liquidity
Facility. 
 “Downgraded Facility” has the meaning specified in Section 3.05(c)(i). 

“Drawing” means an Interest Drawing, a Final Drawing, a Non-Extension Drawing,
a Special Termination Drawing or a Downgrade Drawing, as the case may be. 
 “DTC” means The Depository Trust
Company. 
 “Eligible A Pool Balance” means, as of any date of determination, the excess of (A) the Pool
Balance of the Class A Certificates as of the immediately preceding Distribution Date (or, if such date of determination is on or before the first Distribution Date, the original aggregate face amount of the Class A Certificates) (after
giving effect to distributions made on such date of determination) over (B) the sum of, with respect to each Series A Equipment Note, one of the following amounts, if applicable: (i) if there has previously been a sale or disposition
by the applicable Loan Trustee of the applicable Aircraft for cash under the Indenture pursuant to which such Series A Equipment Note was issued, the outstanding principal amount of such Series A Equipment Note that remains unpaid as of
such date of determination subsequent to such sale or disposition and after giving effect to any distributions of the proceeds of such sale or disposition applied under such Indenture to the payment of such Series A Equipment Note, (ii) if
there has previously been an Event of Loss (as defined in such Indenture) with respect to the applicable Aircraft to which such Series A Equipment Note relates, the outstanding principal amount of such Series A Equipment Note that remains
unpaid as of such date of determination subsequent to the scheduled date of mandatory redemption of such Series A Equipment Note following such Event of Loss and after giving effect to the distributions of any proceeds in respect of such Event
of Loss applied under such Indenture to the payment of such Series A Equipment Note, (iii) if such Series A Equipment Note has previously been sold for cash by the Subordination Agent, the excess, if any, of (x) the outstanding
amount of principal and interest as of the date of such sale by the Subordination Agent of such Series A Equipment Note over (y) the purchase price received with respect to such sale of such Series A Equipment Note for cash (net of
any applicable costs and expenses of such sale) or (iv) if a Deemed Disposition Event has occurred with respect to such Series A Equipment Note, the outstanding principal amount of such Series A Equipment Note; provided,
however, that if more than one of the clauses (i), (ii), 

  

					
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(Spirit 2017-1 EETC)

 
(iii) and (iv) is applicable to any one Series A Equipment Note, only the amount determined pursuant to the clause that first became applicable shall be counted with respect to such
Series A Equipment Note. 
 “Eligible B Pool Balance” means, as of any date of determination, the excess of
(A) the Pool Balance of the Class B Certificates as of the immediately preceding Distribution Date (or, if such date of determination is on or before the first Distribution Date, the original aggregate face amount of the Class B
Certificates) (after giving effect to distributions made on such date of determination) over (B) the sum of, with respect to each Series B Equipment Note, one of the following amounts, if applicable: (i) if there has previously been a
sale or disposition by the applicable Loan Trustee of the applicable Aircraft for cash under the Indenture pursuant to which such Series B Equipment Note was issued, the outstanding principal amount of such Series B Equipment Note that
remains unpaid as of such date of determination subsequent to such sale or disposition and after giving effect to any distributions of the proceeds of such sale or disposition applied under such Indenture to the payment of such Series B
Equipment Note, (ii) if there has previously been an Event of Loss (as defined in such Indenture) with respect to the applicable Aircraft to which such Series B Equipment Note relates, the outstanding principal amount of such Series B
Equipment Note that remains unpaid as of such date of determination subsequent to the scheduled date of mandatory redemption of such Series B Equipment Note following such Event of Loss and after giving effect to the distributions of any
proceeds in respect of such Event of Loss applied under such Indenture to the payment of such Series B Equipment Note, (iii) if such Series B Equipment Note has previously been sold for cash by the Subordination Agent, the excess, if
any, of (x) the outstanding amount of principal and interest as of the date of such sale by the Subordination Agent of such Series B Equipment Note over (y) the purchase price received with respect to such sale of such Series B
Equipment Note for cash (net of any applicable costs and expenses of such sale) or (iv) if a Deemed Disposition Event has occurred with respect to such Series B Equipment Note, the outstanding principal amount of such Series B
Equipment Note; provided, however, that if more than one of the clauses (i), (ii), (iii) and (iv) is applicable to any one Series B Equipment Note, only the amount determined pursuant to the clause that first became
applicable shall be counted with respect to such Series B Equipment Note. 
 “Eligible Deposit Account” means
either (a) a segregated account with an Eligible Institution or (b) a segregated trust account with the corporate trust department of a depository institution organized under the laws of the United States of America or any one of the
states thereof or the District of Columbia (or any U.S. branch of a foreign bank), having corporate trust powers and acting as trustee for funds deposited in such account, so long as any of the securities of such depository institution has a
Long-Term Rating (or, if a Long-Term Rating is not available, its Short-Term Rating equivalent) of at least A- from S&P (and, if available, Fitch). An Eligible Deposit Account may be maintained with the
Subordination Agent or a Liquidity Provider so long as the Subordination Agent or such Liquidity Provider is an Eligible Institution; provided that the Subordination Agent, in its individual capacity, or such Liquidity Provider shall have
waived all rights of set-off and counterclaim with respect to such account. 
 “Eligible
Institution” means (a) the corporate trust department of the Subordination Agent or any Trustee, as applicable, or (b) a depository institution organized under the laws of the United States of America or any one of the states
thereof or the District of Columbia (or any U.S. branch of a foreign bank), which has a Long-Term Rating (or, if a Long-Term Rating is not available, its Short-Term Rating equivalent) of at least A- by S&P
(and, if available, Fitch). 
 “Eligible Investments” means investments in (a) obligations of the United States
government or agencies thereof, or obligations guaranteed by the United States government, having maturities no later than 365 days following the date of such investment, (b) open market commercial paper of any corporation incorporated under
the laws of the United States or any state thereof having a Short-Term Rating of at least A-1 or its equivalent by S&P or at least F1 or its equivalent by Fitch having maturities no later than 365 days
following the date of such investment, (c) certificates of deposit, time 

  

					
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deposits, banker’s acceptances, commercial paper or other direct obligations of, or obligations guaranteed by, commercial banks organized under the laws of the United States or of any
political subdivision thereof (or any United States branch of a foreign bank) having a combined capital and surplus in excess of $500,000,000 which banks or their holding companies have a Long-Term Rating of at least
A- or its equivalent by either S&P or Fitch, having maturities no later than 365 days following the date of such investment; provided, however, that the aggregate amount at any one time
invested in certificates of deposit issued by any one bank shall not be in excess of 5% of such bank’s capital and surplus, (d) Dollar denominated offshore certificates of deposit issued by, or offshore time deposits with, any commercial
bank described in clause (c) or any subsidiary thereof having maturities no later than 365 days following the date of such investment, and (e) repurchase agreements with any financial institution having combined capital and surplus of at
least $500,000,000 with any of the obligations described in clauses (a) through (d) as collateral having maturities no later than 365 days following the date of such investment. If none of the above investments is available, the entire
amounts to be invested may be used to purchase Federal funds from an entity described in clause (c). All Eligible Investments must be held in an Eligible Deposit Account. Any of the investments described herein may be made through or with, as
applicable, the bank acting as Trustee or its Affiliates. 
 “Equipment Note Special Payment” means a Special
Payment on account of the redemption, purchase or prepayment of all of the Equipment Notes issued pursuant to an Indenture. 

“Equipment Notes” means, at any time, the Series AA Equipment Notes, the Series A Equipment Notes and the
Series B Equipment Notes and in either case, any Equipment Notes issued in exchange therefor or replacement thereof pursuant to the terms of the Indentures. 

“Escrow Agent” means Wilmington Trust Company, as escrow agent under each Escrow and Paying Agent Agreement, together
with its successors in such capacity. 
 “Escrow and Paying Agent Agreement” means, with respect to any
Class of Certificates, the Escrow and Paying Agent Agreement pertaining to such Class dated as of the date hereof between the Escrow Agent, the Underwriters, the Trustee for such Class and the Paying Agent, as the same may be amended,
modified or supplemented from time to time in accordance with the terms thereof. 
 “Escrow Receipts” has the
meaning assigned to such term in the Escrow and Paying Agent Agreement for the Class AA Trust, Class A Trust or Class B Trust, as applicable. 

“Excess Liquidity Obligations” means, with respect to an Indenture, the amounts payable under clauses (a), (b),
(c), (d), (e) and (f) of Section 2.14 of such Indenture. 
 “Expected Distributions” means, with respect
to the Certificates of any Trust on any Current Distribution Date, the difference between (A) the Pool Balance of such Certificates as of the immediately preceding Distribution Date (or, if the Current Distribution Date is the first
Distribution Date after the date of issuance of such Certificates, the original aggregate face amount of the Certificates of such Trust) and (B) the Pool Balance of such Certificates as of the Current Distribution Date calculated on the basis
that (i) the principal of any Non-Performing Equipment Notes held in such Trust has been paid in full and such payments have been distributed to the holders of such Certificates, (ii) the principal
of any Performing Equipment Notes held in such Trust has been paid when due (whether at stated maturity or upon prepayment or purchase or otherwise, but without giving effect to any Acceleration of Performing Equipment Notes) and such payments have
been distributed to the holders of such Certificates and (iii) the principal of any Equipment Notes formerly held in such Trust that have been sold pursuant to the terms hereof has been paid in full and such payments have been distributed to
the holders of such Certificates, but without giving effect to any reduction in the Pool Balance as a result of any distribution attributable to Deposits relating to such Trust occurring after the immediately preceding Distribution Date (or, if the
Current Distribution Date is the first Distribution Date, occurring after the initial issuance of the 

  

					
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Certificates of such Trust). For purposes of calculating Expected Distributions with respect to the Certificates of any Trust, any Premium paid on the Equipment Notes held in such Trust which has
not been distributed to the Certificateholders of such Trust (other than such Premium or a portion thereof applied to the payment of interest in respect of the Certificates of such Trust or the reduction of the Pool Balance of such Trust) shall be
added to the amount of such Expected Distributions. 
 “Expiry Date”, with respect to any Liquidity Facility, has
the meaning specified in such Liquidity Facility. 
 “Fee Letter” means any fee letter entered into among the
Subordination Agent, Spirit and a Liquidity Provider and “Fee Letters” has a correlative meaning. 

“Final Distributions” means, with respect to the Certificates of any Trust on any Distribution Date, the sum of
(x) the aggregate amount of all accrued and unpaid interest on such Certificates (excluding interest, if any, payable with respect to Deposits relating to such Trust) and (y) the Pool Balance of such Certificates as of the immediately
preceding Distribution Date (less the amount of Deposits relating to such Trust as of such preceding Distribution Date other than any portion of such Deposits thereafter used to acquire Equipment Notes pursuant to the Note Purchase Agreement). For
purposes of calculating Final Distributions with respect to the Certificates of any Trust, any Premium paid on the Equipment Notes held in such Trust which has not been distributed to the Certificateholders of such Trust (other than such Premium or
a portion thereof applied to the payment of interest on the Certificates of such Trust or the reduction of the Pool Balance of such Trust) shall be added to the amount of such Final Distributions. 

“Final Drawing” has the meaning specified in Section 3.05(i). 

“Final Legal Distribution Date” means (i) with respect to the Class AA Certificates, August 15, 2031,
(ii) with respect to the Class A Certificates, August 15, 2031 and (iii) with respect to the Class B Certificates, August 15, 2027. 

“Fitch” means Fitch Ratings, Inc. 

“Fractional Undivided Interest” means the fractional undivided interest in a Trust that is represented by a
Certificate relating to such Trust. 
 “Indenture” means each of the Indenture and Security Agreements entered into
by the Loan Trustee and Spirit pursuant to the Note Purchase Agreement, in each case as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Indenture Event of Default” means, with respect to any Indenture, any Event of Default (as such term is defined in
such Indenture) thereunder. 
 “Interest Drawing” has the meaning specified in Section 3.05(a). 

“Interest Payment Date” means, with respect to any Liquidity Facility, each date on which interest is due and payable
under such Liquidity Facility on a Downgrade Drawing, Non-Extension Drawing, Special Termination Drawing or Final Drawing thereunder, other than any such date on which interest is due and payable under such
Liquidity Facility only on an Applied Provider Advance or an Applied Special Termination Advance (as such terms are defined in such Liquidity Facility). 

“Investment Earnings” means investment earnings on funds on deposit in the Trust Accounts net of losses and the
Subordination Agent’s reasonable expenses in making such investments. 
 “Lending Office” has the meaning
specified in the applicable Liquidity Facility. 

  

					
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 “Lien” means any mortgage, pledge, lien, charge, claim, disposition of
title, encumbrance, lease, sublease or security interest of any kind, including, without limitation, any of the foregoing arising under any conditional sales or other title retention agreement. 

“Liquidity Event of Default”, with respect to any Liquidity Facility, has the meaning specified in such Liquidity
Facility. 
 “Liquidity Expenses” means the Class AA Liquidity Expenses, the Class A Liquidity Expenses
and the Class B Liquidity Expenses. 
 “Liquidity Facility” means, at any time, the Class AA Liquidity
Facility, the Class A Liquidity Facility or the Class B Liquidity Facility, as applicable. 
 “Liquidity
Obligations” means the Class AA Liquidity Obligations, the Class A Liquidity Obligations and the Class B Liquidity Obligations. 

“Liquidity Provider” means, at any time, the Class AA Liquidity Provider, the Class A Liquidity Provider or
the Class B Liquidity Provider, as applicable. 
 “Loan Trustee” means, with respect to any Indenture, the
bank, trust company or other financial institution designated as loan trustee thereunder, and any successor to such loan trustee. 

“Long-Term Rating” means, for any entity (a) in the case of Fitch, the long-term issuer default rating of such
entity and (b) in the case of S&P, the long-term issuer credit rating of such entity. 
 “LP Incumbency
Certificate” has the meaning specified in Section 2.05(c). 
 “LP Representatives” has the meaning
specified in Section 2.05(c). 
 “Majority in Interest of Noteholders”, with respect to any Indenture, has the
meaning specified in such Indenture. 
 “Minimum Sale Price” means, with respect to any Aircraft or the Equipment
Notes issued in respect of such Aircraft, at any time, the lesser of (1) in the case of the sale of an Aircraft, 80%, or in the case of the sale of such Equipment Notes, 90%, of the Appraised Current Market Value of such Aircraft and
(2) the sum of the aggregate Note Target Price of such Equipment Notes and an amount equal to the Excess Liquidity Obligations in respect of the Indenture under which such Equipment Notes were issued. 

“Non-Controlling Party” means, at any time, any Trustee, Liquidity Provider or
other Person a party hereto, which, in each case, is not the Controlling Party at such time. 

“Non-Extended Facility” has the meaning specified in Section 3.05(d).

 “Non-Extension Drawing” has the meaning specified in
Section 3.05(d). 
 “Non-Performing Equipment Note” means an Equipment
Note issued pursuant to an Indenture that is not a Performing Equipment Note. 
 “Note Purchase Agreement” means the
Note Purchase Agreement, dated as of the date hereof, among Spirit, each Trustee, the Escrow Agent, the Subordination Agent and the Paying Agent, as amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Note Target Price” means, for any Equipment Note issued under any Indenture, (i) the aggregate outstanding
principal amount of such Equipment Note, plus (ii) the accrued and unpaid interest thereon, together with all other sums owing on or in respect of such Equipment Note under such Indenture 

  

					
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(Spirit 2017-1 EETC)

 
(including, without limitation, enforcement costs incurred by the Subordination Agent in respect of such Equipment Note). 

“Notice Date” has the meaning specified in Section 3.05(d)(i). 

“Operative Agreements” means this Agreement, the Liquidity Facilities, the Fee Letter(s), the Indentures, the Trust
Agreements, the Participation Agreements, the Equipment Notes and the Certificates, together with all exhibits and schedules included with any of the foregoing. 

“Outstanding” means, when used with respect to each Class of Certificates, as of the date of determination, all
Certificates of such Class theretofore authenticated and delivered under the related Trust Agreement, except: 
 (i)
Certificates of such Class theretofore canceled by the Registrar (as defined in such Trust Agreement) or delivered to the Trustee thereunder or such Registrar for cancellation; 

(ii) all of the Certificates of such Class for which money in the full amount required to make the Final Distribution with
respect to such Certificates pursuant to Section 11.01 of such Trust Agreement has been theretofore deposited with the related Trustee in trust for the holders of such Certificates as provided in Section 4.01 of such Trust Agreement,
pending distribution of such money to such Certificateholders pursuant to such Final Distribution payment; and 
 (iii)
Certificates of such Class in exchange for or in lieu of which other Certificates of such Class have been authenticated and delivered pursuant to such Trust Agreement; 

provided, however, that in determining whether the holders of the requisite Fractional Undivided Interest of such Certificates have given any
request, demand, authorization, direction, notice, consent or waiver hereunder, any Certificates owned by Spirit or any of its Affiliates shall be disregarded and deemed not to be Outstanding except that, in determining whether the Trustee of the
applicable Trust shall be protected in relying upon any such request, demand, authorization, direction, notice, consent or waiver, only Certificates that such Trustee knows to be so owned shall be so disregarded. Notwithstanding the foregoing,
(x) if Spirit and its Affiliates own 100% of the Certificates of any Class, such Certificates shall not be so disregarded and (y) if any amount of such Certificates owned by Spirit and its Affiliates have been pledged in good faith, such
Certificates shall not be disregarded if the pledgee establishes to the satisfaction of the applicable Trustee the pledgee’s right so to act with respect to such Certificates and that the pledgee is not Spirit or any of its Affiliates. 

“Overdue Scheduled Payment” means any Scheduled Payment which is not in fact received by the Subordination Agent
within five days after the Scheduled Payment Date relating thereto. 
 “Participation Agreement” means, with respect
to each Indenture, the “Participation Agreement” referred to therein, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Payees” has the meaning specified in Section 2.04(c). 

“Paying Agent” means WTNA, as paying agent under each Escrow and Paying Agent Agreement, together with its successors
in such capacity. 
 “Paying Agent Account” has the meaning assigned to such term in the Escrow and Paying Agent
Agreements. 
 “Payment Default”, with respect to any Indenture, has the meaning specified in such Indenture. 

  

					
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 “Performing Equipment Note” means an Equipment Note issued pursuant to an
Indenture with respect to which no Payment Default has occurred and is continuing (without giving effect to any Acceleration); provided that, in the event of a bankruptcy proceeding in which Spirit is a debtor under the Bankruptcy Code,
(i) any payment default occurring before the date of the order for relief in such proceeding shall not be taken into consideration during the 60-Day Period (or such longer period as may apply under
Section 1110(b) of the Bankruptcy Code) (the “Section 1110 Period”), (ii) any payment default occurring after the date of the order for relief in such proceeding shall not be taken into consideration if
such payment default is cured under Section 1110(a)(2)(B) of the Bankruptcy Code before the later of 30 days after the date of such default or the expiration of the Section 1110 Period and (iii) any payment default occurring after the
Section 1110 Period will not be taken into consideration if such payment default is cured before the end of the grace period, if any, set forth in the related Indenture. 

“Performing Note Deficiency” means any time that less than 65% of the then aggregate outstanding principal amount of
all Series AA Equipment Notes, Series A Equipment Notes and Series B Equipment Notes are Performing Equipment Notes. 

“Person” means any individual, corporation, limited liability company, partnership, joint venture, association,
joint-stock company, trust, trustee, unincorporated organization or government or any agency or political subdivision thereof. 

“Pool Balance” means, with respect to the Certificates of any Class, as of any date, (i) the original aggregate
face amount of the Certificates of such Class less (ii) the aggregate amount of all distributions made in respect of such Certificates of such Class or in respect of Deposits relating to such Class, other than distributions made as of
such date in respect of interest or Premium or reimbursement of any costs or expenses incurred in connection therewith. The Pool Balance as of any Distribution Date with respect to each Class shall be computed after giving effect to any
distribution with respect to unused Deposits relating to such Class, the payment of principal, if any, on the Equipment Notes or payment with respect to other Trust Property held in the related Trust and the distribution thereof to be made on such
date. 
 “Post-Default Appraisal” has the meaning specified in Section 4.1(a)(iv). 

“Premium” means any “Make-Whole Amount” as such term is defined in any Indenture. 

“Proceeding” means any suit in equity, action at law or other judicial or administrative proceeding. 

“PTC Event of Default” means, with respect to each Trust Agreement, the failure to distribute within 10 Business Days
after the applicable Distribution Date: (i) the outstanding Pool Balance of the applicable Class of Certificates on the Final Legal Distribution Date for such Class or (ii) interest scheduled for distribution on such Certificates
on any Distribution Date (unless, in the case of the Class AA Trust Agreement or the Class A Trust Agreement or the Class B Trust Agreement, the Subordination Agent shall have made an Interest Drawing or a withdrawal from the Cash
Collateral Account relating to a Liquidity Facility for such Class, with respect thereto in an aggregate amount sufficient to pay such interest and shall have distributed such amount to the Trustee entitled thereto). 

“Rating Agencies” means, with respect to any Class of Certificates, collectively, at any time, each nationally
recognized rating agency which shall have been requested by the Company to rate such Class of Certificates and which shall then be rating such Class of Certificates. The initial Rating Agencies for the Certificates will be Fitch and
S&P. 
 “Ratings Confirmation” means, with respect to any action proposed to be taken, with respect to any
Class of Certificates, a written confirmation from each of the Rating Agencies to the effect 

  

					
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(Spirit 2017-1 EETC)

 
that such action would not result in (i) a reduction of the rating for such Class of Certificates below the then current rating for such Class of Certificates or (ii) a
withdrawal or suspension of the rating of such Class of Certificates. 
 “Refinancing Certificateholder” has
the meaning specified in Section 8.01(c). 
 “Refinancing Certificates” has the meaning specified in
Section 8.01(c). 
 “Refinancing Equipment Notes” has the meaning specified in Section 8.01(c). 

“Refinancing Trust Agreement” has the meaning specified in Section 8.01(c). 

“Refinancing Trust” has the meaning specified in Section 8.01(c). 

“Refinancing Trustee” has the meaning specified in Section 8.01(c). 

“Register”, with respect to any Trust, has the meaning ascribed to such term in the Trust Agreement for such Trust.

 “Regular Distribution Dates” means each February 15 and August 15, commencing on August 15, 2018;
provided, however, that, if any such day shall not be a Business Day, the related distribution shall be made on the next succeeding Business Day without additional interest. 

“Replacement Airframe”, with respect to any Indenture, has the meaning specified in such Indenture. 

“Replacement Depositary” has the meaning specified in the Note Purchase Agreement. 

“Replacement Liquidity Facility” means, for any Liquidity Facility, an irrevocable revolving credit agreement (or
agreements) in substantially the form of the replaced Liquidity Facility, including reinstatement provisions, or an agreement (or agreements) in such other form (which may include, without limitation, one or more letters of credit, surety
bonds, financial insurance policies or guaranties), or any combination thereof, as shall permit the Rating Agencies to confirm in writing their respective ratings then in effect for the Certificates of the Class with respect to which such
Liquidity Facility was issued (before downgrading of such ratings, if any, as a result of the downgrading, if any, of the applicable Liquidity Provider), in a face amount (or in an aggregate face amount) equal to the applicable Required Amount and
issued by a Person (or Persons) having the minimum Long-Term Rating specified by each Rating Agency as the applicable Threshold Rating for such Rating Agency and the applicable Class of Certificates; provided, without limiting the
foregoing, that in the case of the Class AA Liquidity Facility following a Downgrade Event by S&P, a Replacement Liquidity Facility may consist of a combination of (i) an irrevocable revolving credit agreement in substantially the form
of the Class AA Liquidity Facility issued by a Person meeting the ratings requirements specified in the following proviso (which may be the initial Class AA Liquidity Provider so long as it has such a rating and, in such event, the
existing Liquidity Facility provided by such Class AA Liquidity Provider may constitute the irrevocable revolving credit agreement described in clause (i)) and (ii) a second irrevocable revolving credit agreement issued by a Person (other
than the Person that issues the agreement described in clause (i) above or any affiliate thereof) meeting the ratings requirements specified in the following proviso (each such Person specified in clause (i) and (ii) being a
“Joint Issuer”), which second irrevocable revolving credit agreement shall provide that the Subordination Agent may request Drawings thereunder on the same terms as under the agreement described in such clause (i), if
Drawings are not timely honored under such agreement (any such Replacement Liquidity Facility consisting of such a combination being referred to as a “Combination Replacement Liquidity Facility”); provided, further, that
(x) if the Joint Issuers are primarily based in different countries (or states of the United States) and are primarily engaged in different Industries (as defined below), (A) one Joint Issuer shall have a

  

					
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minimum Long-Term Rating of A- issued by Standard & Poor’s and (B) the other Joint Issuer shall have a minimum Long-Term Rating of BBB+
issued by Standard & Poor’s, or (y) if the Joint Issuers are either primarily based in the same country (or state of the United States) or are primarily engaged in the same Industry but not both, (A) one Joint Issuer shall
have a minimum Long-Term Rating of A issued by Standard & Poor’s and (B) the other Joint Issuer shall have a minimum Long-Term Rating of A- issued by Standard & Poor’s, or
(z) if the Joint Issuers are primarily based in the same country (or state of the United States) and are primarily engaged in the same Industry or otherwise at the discretion of Spirit, (A) one Joint Issuer shall have a minimum Long-Term
Rating of A+ issued by Standard & Poor’s and (B) the other Joint Issuer shall have a minimum Long-Term Rating of A issued by Standard & Poor’s. For purposes of the determinations of required credit ratings set forth
in subclauses (x) through (z) above, “Industry” shall mean the “Corporate Industry Concentration Categories” set forth in Table 9 in the ratings criteria titled “Methodology And Assumptions For Market Value
Securities,” published by Standard & Poor’s on Sept. 17, 2013. Without limitation of the form that a Replacement Liquidity Facility otherwise may have pursuant to the preceding sentence, a Replacement Liquidity Facility for any
Class of Certificates may have a stated expiration date earlier than 15 days after the Final Legal Distribution Date of such Class of Certificates so long as such Replacement Liquidity Facility provides for a
Non-Extension Drawing as contemplated by Section 3.05(d) hereof. 
 “Replacement
Liquidity Provider” means a Person (or Persons) who issues a Replacement Liquidity Facility. 
 “Required
Amount” means, with respect to each Liquidity Facility or the Cash Collateral Account for any Class, for any day, the sum of the aggregate amount of interest, calculated at the rate per annum equal to the Stated Interest Rate for the
related Class of Certificates on the basis of a 360-day year comprised of twelve 30-day months, that would be distributable on such Class of Certificates on
each of the three successive Regular Distribution Dates immediately following such day or, if such day is a Regular Distribution Date, on such day and the two succeeding Regular Distribution Dates, in each case calculated on the basis of the Pool
Balance of such Class of Certificates on such day and without regard to expected future distributions of principal on such Class of Certificates. 

“Responsible Officer” means (i) with respect to the Subordination Agent and each of the Trustees, any officer in
the Corporate Trust Department or similar department of the Subordination Agent or such Trustee, as the case may be, or any other officer customarily performing functions similar to those performed by the persons who at the time shall be such
officers or to whom any corporate trust matter is referred because of his knowledge of and familiarity with a particular subject, and (ii) with respect to any Liquidity Provider, any authorized officer of such Liquidity Provider. 

“S&P” means Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services
LLC business. 
 “Scheduled Payment” means, with respect to any Equipment Note, (i) any payment of principal or
interest on such Equipment Note (other than an Overdue Scheduled Payment) or (ii) any distribution in respect of interest on such Equipment Note to the Certificateholders of Certificates of the corresponding Class of Certificates with
funds drawn under the Liquidity Facility for such Class or withdrawn from the Cash Collateral Account for such Class, which payment in the case of clause (i) or clause (ii) represents an installment of principal on such Equipment Note
at the stated maturity of such installment, or the payment of regularly scheduled interest accrued on the unpaid principal amount of such Equipment Note, or both; provided, however, that any payment of principal, Premium, if any, or
interest resulting from the redemption, purchase or prepayment of any Equipment Note shall not constitute a Scheduled Payment. 

  

					
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 “Scheduled Payment Date” means, with respect to any Scheduled Payment,
the date on which such Scheduled Payment is scheduled to be made. 
 “Section 2.04
Fraction” means, with respect to any Special Distribution Date, a fraction, the numerator of which shall be the amount of principal of the applicable Series AA Equipment Notes, Series A Equipment Notes and Series B
Equipment Notes being redeemed, purchased or prepaid on such Special Distribution Date, and the denominator of which shall be the aggregate unpaid principal amount of all Series AA Equipment Notes, Series A Equipment Notes and
Series B Equipment Notes outstanding as of such Special Distribution Date immediately before giving effect to such redemption, purchase or prepayment. 

“Series AA Equipment Notes” means the equipment notes issued pursuant to each
Indenture by Spirit and authenticated by the Loan Trustee thereunder, and designated “Series AA Equipment Notes” thereunder, and any such Equipment Notes issued in exchange therefor or replacement thereof pursuant to the terms of such
Indenture. 
 “Series A Equipment Notes” means the equipment notes issued pursuant
to each Indenture by Spirit and authenticated by the Loan Trustee thereunder, and designated “Series A Equipment Notes” thereunder, and any such Equipment Notes issued in exchange therefor or replacement thereof pursuant to the terms
of such Indenture. 
 “Series B Equipment Notes” means the equipment notes issued
pursuant to each Indenture by Spirit and authenticated by the Loan Trustee thereunder, and designated “Series B Equipment Notes” thereunder, and any such Equipment Notes issued in exchange therefor or replacement thereof pursuant to
the terms of such Indenture. 
 “Short-Term Rating” means, for any entity, (a) in the case of Fitch, the
short-term issuer default rating of such entity and (b) in the case of S&P, the short-term issuer credit rating of such entity. 

“Special Distribution Date” means, with respect to any Special Payment, the Business Day chosen by the Subordination
Agent pursuant to Section 2.04(a) for the distribution of such Special Payment in accordance with this Agreement. 

“Special Payment” means any payment (other than a Scheduled Payment) in respect of, or any proceeds of, any Equipment
Note or Collateral. 
 “Special Payments Account” means the Eligible Deposit Account created pursuant to
Section 2.02(a) as a sub-account to the Collection Account. 
 “Special Termination
Drawing” has the meaning assigned to such term in Section 3.05(k). 
 “Special Termination
Notice”, with respect to any Liquidity Facility has the meaning assigned to such term (if such term is used therein) in such Liquidity Facility. 

“Spirit” means Spirit Airlines, Inc., a Delaware corporation, and its successors and permitted assigns. 

“Spirit Bankruptcy Event” means the occurrence and continuation of any of the following: 

(a) Spirit consents to the appointment of or the taking of possession by a receiver, trustee or liquidator of itself or of a substantial part
of its property, admits in writing its inability 

  

					
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(Spirit 2017-1 EETC)

 
to pay its debts generally as they come due or makes a general assignment for the benefit of creditors; 

(b) Spirit files a voluntary petition in bankruptcy or a voluntary petition or an answer seeking reorganization, liquidation or
other relief as a debtor in a case under any bankruptcy laws or insolvency laws (as in effect at such time) or an answer admitting the material allegations of a petition filed against Spirit as a debtor in any such case, or Spirit seeks relief as a
debtor by voluntary petition, answer or consent, under the provisions of any other bankruptcy or other similar law providing for the reorganization or winding-up of corporations (as in effect at such time), or
Spirit seeks an agreement, composition, extension or adjustment with its creditors under such laws; or 
 (c) an order,
judgment or decree is entered by any court of competent jurisdiction appointing, without the consent of Spirit, a receiver, trustee or liquidator of Spirit or sequestering any substantial part of its property, or granting any other relief in respect
of Spirit as a debtor under any bankruptcy laws or insolvency laws (as in effect at such time), and any such order, judgment or decree of appointment or sequestration remains in force undismissed, unstayed and unvacated for a period of 90 days after
the date of entry thereof; or 
 (d) a petition against Spirit as a debtor in a case under the federal bankruptcy laws or
other insolvency laws (as in effect at such time) is filed and not withdrawn or dismissed within 90 days thereafter, or if, under the provisions of any law providing for reorganization or winding-up of
corporations that applies to Spirit, any court of competent jurisdiction assumes jurisdiction, custody or control of Spirit or of any substantial part of its property and such jurisdiction, custody or control remains in force unrelinquished,
unstayed and unterminated for a period of 90 days. 
 “Spirit Provisions” has the meaning specified in
Section 8.01(a). 
 “Stated Amount”, with respect to any Liquidity Facility, means the Maximum Commitment (as
defined in such Liquidity Facility) of the applicable Liquidity Provider thereunder. 
 “Stated Expiration Date” has
the meaning specified in Section 3.05(d). 
 “Stated Interest Rate” means (i) with respect to the
Class AA Certificates, 3.375% per annum, (ii) with respect to the Class A Certificates, 3.650% per annum and (iii) with respect to the Class B Certificates, 3.800% per annum. 

“Subordination Agent” has the meaning specified in the introductory paragraph to this Agreement. 

“Subordination Agent Incumbency Certificate” has the meaning specified in Section 2.05(a). 

“Subordination Agent Representatives” has the meaning specified in Section 2.05(a). 

“Substitute Airframe”, with respect to any Indenture, has the meaning specified in such Indenture. 

“Tax” and “Taxes” means all governmental fees (including, without limitation, license, filing
and registration fees) and all taxes (including, without limitation, franchise, excise, stamp, value added, income, gross receipts, sales, use and property taxes), withholdings, assessments, levies, imposts, duties or charges, of any nature
whatsoever, together with any related penalties, fines, additions to tax or interest thereon imposed, withheld, levied or assessed by any country, taxing authority or governmental 

  

					
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subdivision thereof or therein or by any international authority, including any taxes imposed on any Person as a result of such Person being required to collect and pay over withholding taxes.

 “Termination Notice” has the meaning specified in the Liquidity Facility. 

“Threshold Rating” means (i) for the Class AA Trust, a Long-Term Rating of
AA- as determined by S&P and a Long-Term Rating of BBB as determined by Fitch, (ii) for the Class A Trust, a Long-Term Rating of BBB+ as determined by S&P and a Long-Term Rating of BBB as
determined by Fitch and (iii) for the Class B Trust, a Long-Term Rating of BBB as determined by each of S&P and Fitch. 

“Treasury Regulations” means regulations, including proposed or temporary regulations, promulgated under the Code.
References herein to specific provisions of proposed or temporary regulations shall include analogous provisions of final Treasury Regulations or other successor Treasury Regulations. 

“Triggering Event” means (x) the occurrence of an Indenture Event of Default under all of the Indentures
resulting in a PTC Event of Default with respect to the most senior Class of Certificates then Outstanding, (y) the Acceleration of all of the outstanding Equipment Notes; provided that, with respect to the period prior to the
Delivery Period Termination Date, the aggregate principal balance of such Equipment Notes is in excess of $250,000,000 or (z) the occurrence of a Spirit Bankruptcy Event. 

“Trust” means the Class AA Trust, the Class A Trust or the Class B Trust, as applicable. 

“Trust Accounts” has the meaning specified in Section 2.02(a). 

“Trust Agreement” means the Class AA Trust Agreement, the Class A Trust Agreement or the Class B Trust
Agreement, as applicable. 
 “Trust Property”, with respect to any Trust, has the meaning specified in the Trust
Agreement for such Trust. 
 “Trust Supplement” means an agreement supplemental to the Basic Agreement pursuant to
which (i) a separate trust is created for the benefit of the holders of Certificates of a Class, (ii) the issuance of the Certificates of a Class representing Fractional Undivided Interests in such trust is authorized and
(iii) the terms of the Certificates of such Class are established, as such agreement may from time to time be supplemented, amended or otherwise modified. 

“Trustee” means the Class AA Trustee, the Class A Trustee or the Class B Trustee, as applicable. 

“Trustee Incumbency Certificate” has the meaning specified in Section 2.05(b). 

“Trustee Representatives” has the meaning specified in Section 2.05(b). 

“Unapplied Provider Advance” has the meaning specified in the applicable Liquidity Facility. 

“Underwriters” means Citigroup Global Markets, Inc., Morgan Stanley & Co. LLC, Goldman Sachs & Co.
LLC and Barclays Capital Inc. 
 “Underwriting Agreement” means the Underwriting Agreement, dated November 13,
2017 among the Underwriters and Spirit, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

  

					
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 “United States” means the United States of America. 

“Withdrawal Notice” has the meaning specified in Section 3.05(d)(ii). 

“Written Notice” means, from the Subordination Agent, any Trustee or Liquidity Provider, a written instrument executed
by the Designated Representative of such Person. An invoice delivered by a Liquidity Provider pursuant to Section 3.01 in accordance with its normal invoicing procedures shall constitute Written Notice under such Section. 

“WTNA” has the meaning specified in the introductory paragraph of this Agreement. 

ARTICLE II 
 TRUST
ACCOUNTS; CONTROLLING PARTY 
 Section 2.01 Agreement to Terms of Subordination; Payments from Monies Received Only.
(a) Each Trustee hereby (i) acknowledges and agrees to the terms of subordination and distribution set forth in this Agreement in respect of each Class of Certificates and (ii) agrees to enforce such provisions and cause all
payments in respect of the Equipment Notes held by the Subordination Agent and the Liquidity Facilities to be applied in accordance with the terms of this Agreement. In addition, each Trustee hereby agrees to cause the Equipment Notes purchased by
the related Trust to be registered in the name of the Subordination Agent or its nominee, as agent and trustee for such Trustee, to be held in trust by the Subordination Agent solely for the purpose of facilitating the enforcement of the
subordination and other provisions of this Agreement. 
 (b) Except as otherwise expressly provided in the next succeeding sentence of this
Section 2.01(b), all payments to be made by the Subordination Agent hereunder shall be made only from amounts received by it that constitute Scheduled Payments, Special Payments and other payments under the Operative Agreements, including
payments under Section 4.02 of the Participation Agreements and Section 2.14 of the Indentures, and only to the extent that the Subordination Agent shall have received sufficient income or proceeds therefrom to enable it to make such
payments in accordance with the terms hereof. Each Trustee and the Subordination Agent hereby agrees, and each Certificateholder, by its acceptance of a Certificate, and each Liquidity Provider, by entering into the Liquidity Facility to which it is
a party, has agreed to look solely to such amounts to the extent available for distribution to it as provided in this Agreement, the relevant Deposits or the applicable Trust Agreement, as the case may be, and that none of the Trustees, the Loan
Trustees or the Subordination Agent is personally liable to any of them for any amounts payable or any liability arising under this Agreement, any Trust Agreement, any Liquidity Facility or such Certificate, except (in the case of the Subordination
Agent) as expressly provided herein or (in the case of the Trustees) as expressly provided herein and in each Trust Agreement or (in the case of the Loan Trustees) as expressly provided in any Operative Agreement. 

(c) Notwithstanding anything to the contrary in this Agreement and in the other Operative Agreements, the Certificates do not represent
indebtedness of the related Trust, and references in this Agreement and the Operative Agreements to accrued interest or principal amounts payable on the Certificates of any Class are included only for computational purposes. For purposes of
such computations, the Certificates of any Class shall be deemed to be comprised of interest and principal components, with the principal component deemed to be the Pool Balance, and the interest component deemed to equal interest accruing at
the Stated Interest Rate for such Class of Certificates from the later of (1) the date of the issuance thereof and (2) the most recent but preceding Distribution Date to which such interest was distributed to, but excluding, the
applicable date of determination, such interest to be considered payable in arrears and to be calculated on the basis of a 360-day year comprised of twelve 30-day
months. 

  

					
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 Section 2.02 Trust Accounts. (a) Upon the execution of this Agreement, the
Subordination Agent shall establish and maintain in its name (i) the Collection Account as an Eligible Deposit Account, bearing a designation clearly indicating that the funds deposited therein are held in trust for the benefit of the Trustees,
the Certificateholders and the Liquidity Providers, and (ii) as a sub-account in the Collection Account, the Special Payments Account as an Eligible Deposit Account, bearing a designation clearly
indicating that the funds deposited therein are held in trust for the benefit of the Trustees, the Certificateholders and the Liquidity Providers. The Subordination Agent shall establish and maintain the Cash Collateral Accounts pursuant to and
under the circumstances set forth in Section 3.05(f). Upon such establishment and maintenance under Section 3.05(f), the Cash Collateral Accounts shall, together with the Collection Account, constitute the “Trust Accounts”
hereunder. Without limiting the foregoing, all monies credited to the Trust Accounts shall be, and shall remain, the property of the relevant Trust(s). 

(b) Funds on deposit in the Trust Accounts shall be invested and reinvested by the Subordination Agent in Eligible Investments selected by
Spirit or its designated representative if such investments are reasonably available and have maturities no later than the earlier of (i) 90 days following the date of such investment and (ii) the Business Day immediately preceding the
Regular Distribution Date or the date of the related distribution pursuant to Section 2.04, as the case may be, next following the date of such investment; provided, however, that upon the occurrence and during the continuation of
a Triggering Event, the Subordination Agent shall invest and reinvest the amounts on deposit in the Trust Accounts (other than amounts in the Cash Collateral Accounts as a result of a Non-Extension Drawing,
which shall be governed by the foregoing proviso) in Eligible Investments in accordance with the written instructions of the Controlling Party. Unless otherwise expressly provided in this Agreement (including, without limitation, with respect to
Investment Earnings on amounts on deposit in the Cash Collateral Accounts, Section 3.05(f)), any Investment Earnings shall be deposited in the Collection Account when received by the Subordination Agent and shall be applied by the Subordination
Agent in the same manner as the other amounts on deposit in the Collection Account are to be applied. The Subordination Agent’s reasonable fees and expenses actually incurred in making such investments and any losses incurred in such
investments shall be charged against the principal amount invested. The Subordination Agent shall not be liable for any loss resulting from any investment, reinvestment or liquidation required to be made under this Agreement other than by reason of
its willful misconduct or negligence. Eligible Investments and any other investment required to be made hereunder shall be held to their maturities except that any such investment may be sold (without regard to its maturity) by the Subordination
Agent without instructions whenever such sale is necessary to make a distribution required under this Agreement. Uninvested funds held hereunder shall not earn or accrue interest. 

(c) The Subordination Agent shall possess all right, title and interest in all funds on deposit from time to time in the Trust Accounts and in
all proceeds thereof (including all income thereon, except as otherwise expressly provided herein with respect to Investment Earnings). The Trust Accounts shall be held in trust by the Subordination Agent under the sole dominion and control of the
Subordination Agent for the benefit of the applicable Trustee, the applicable Certificateholders and the applicable Liquidity Provider, as the case may be. If, at any time, any of the Trust Accounts ceases to be an Eligible Deposit Account, the
Subordination Agent shall within 10 Business Days (or such longer period, not to exceed 30 calendar days, to which a Rating Agency may consent) establish a new Collection Account, Special Payments Account or Cash Collateral Account, as the case may
be, as an Eligible Deposit Account and shall transfer any cash and/or any investments to such new Collection Account, Special Payments Account or Cash Collateral Account, as the case may be. So long as the Subordination Agent is an Eligible
Institution, the Trust Accounts shall be maintained with it as Eligible Deposit Accounts. 
 Section 2.03 Deposits to the Collection
Account and Special Payments Account. (a) The Subordination Agent shall, upon receipt thereof, deposit in the Collection Account all Scheduled 

  

					
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Payments received by it (other than any Scheduled Payment which by the express terms hereof is to be deposited to a Cash Collateral Account). 

(b) The Subordination Agent shall, on each day when one or more Special Payments are made to the Subordination Agent as holder of the Equipment
Notes, deposit in the Special Payments Account the aggregate amount of such Special Payments. 
 Section 2.04 Distributions of
Special Payments. (a) Notice of Special Payment. Except as provided in Section 2.04(c) below, upon receipt by the Subordination Agent, as registered holder of the Equipment Notes, of any notice of a Special Payment (or, in the
absence of any such notice, upon receipt by the Subordination Agent of a Special Payment), the Subordination Agent shall promptly give notice thereof to each Trustee and the Liquidity Providers. The Subordination Agent shall promptly calculate the
amount of the proceeds of any redemption, purchase or prepayment of any Equipment Note or the amount of any Overdue Scheduled Payment or the proceeds of Equipment Notes or Collateral, as the case may be, comprising such Special Payment under the
applicable Indenture or Indentures and shall promptly send to each Trustee and the Liquidity Providers a Written Notice of such amount and the amount allocable to each Trust. Such Written Notice shall also set the distribution date for such Special
Payment (a “Special Distribution Date”), which shall be the Business Day which immediately follows the later to occur of (x) the 15th day after the date of such Written Notice and (y) the date the Subordination Agent has
received or expects to receive such Special Payment. Amounts on deposit in the Special Payments Account shall be distributed in accordance with Sections 2.04(b) and 2.04(c) and Article III hereof, as applicable. 

For the purposes of the application of any Special Payment in respect of any Equipment Note to be distributed on any Special Distribution Date
in accordance with Section 3.02 hereof, so long as no Indenture Event of Default shall have occurred and be continuing under any Indenture: 

(i) clause “second” thereof shall be deemed to read as follows: “second, accrued and unpaid Liquidity Expenses then overdue plus
an amount equal to all accrued and unpaid Liquidity Expenses not yet overdue multiplied by the Section 2.04 Fraction shall be distributed to the Liquidity Providers pro rata on the basis of the amount of the Liquidity Expenses owed to each
Liquidity Provider”; 
 (ii) clause “third” thereof shall be deemed to read as follows: “third, (i) such amount as
shall be required to pay accrued and unpaid interest then overdue on all Liquidity Obligations (at the rate, or in the amount, provided in the applicable Liquidity Facility) plus an amount equal to the amount of accrued and unpaid interest on the
Liquidity Obligations not yet overdue multiplied by the Section 2.04 Fraction, and (ii) if one or more Special Termination Drawings have been made under the Liquidity Facilities and have not been converted into a Final Drawing, the
outstanding amount of such Special Termination Drawings, shall be distributed to the Liquidity Providers, pro rata on the basis of the amounts owed to each Liquidity Provider”; 

(iii) clause “seventh” thereof shall be deemed to read as follows: “seventh, such amount as shall be required to pay accrued,
due and unpaid interest at the Stated Interest Rate on the outstanding Pool Balance of the Class AA Certificates, together with (without duplication) any other accrued and unpaid interest at the Stated Interest Rate on the outstanding principal
amount of the Series AA Equipment Notes held in the Class AA Trust being redeemed, purchased or prepaid, in each case excluding interest, if any, payable with respect to Deposits relating to the Class AA Trust shall be paid to the
Class AA Trustee”; 
 (iv) clause “eighth” thereof shall be deemed to read as follows: “eighth, such amount as shall
be required to pay any accrued, due and unpaid Class A Adjusted Interest to the holders of the Class A Certificates (excluding interest, if any, payable with respect to Deposits relating to the Class A Trust) shall be paid to the
Class A Trustee”; 

  

					
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 (v) clause “ninth” thereof shall be deemed to read as follows: “ninth, such amount
as shall be required to pay any accrued, due and unpaid Class B Adjusted Interest to the holders of the Class B Certificates (excluding interest, if any, payable with respect to Deposits relating to the Class B Trust) shall be paid to
the Class B Trustee”; 
 (vi) clause “eleventh” thereof shall be deemed to read as follows: “eleventh, such amount
as shall be required to pay in full accrued, due and unpaid interest at the Stated Interest Rate on the outstanding Pool Balance of the Class A Certificates which was not previously paid pursuant to clause “eighth” above to the
holders of the Class A Certificates, together with (without duplication) any other accrued and unpaid interest at the Stated Interest Rate on the outstanding principal amount of the Series A Equipment Notes held in the Class A Trust
and being redeemed, purchased or prepaid, in each case excluding interest, if any, payable with respect to Deposits relating to the Class A Trust, shall be paid to the Class A Trustee”: and 

(vii) clause “thirteenth” thereof shall be deemed to read as follows: “thirteenth, such amount as shall be required to pay in
full accrued, due and unpaid interest at the Stated Interest Rate on the outstanding Pool Balance of the Class B Certificates which was not previously paid pursuant to clause “ninth” above to the holders of the Class B
Certificates, together with (without duplication) any other accrued and unpaid interest at the Stated Interest Rate on the outstanding principal amount of the Series B Equipment Notes held in the Class B Trust and being redeemed, purchased
or prepaid, in each case excluding interest, if any, payable with respect to Deposits relating to the Class B Trust, shall be paid to the Class B Trustee”. 

(b) Investment of Amounts in Special Payments Account. Any amounts on deposit in the Special Payments Account prior to the distribution
thereof pursuant to Section 2.04 or 3.02 shall be invested in accordance with Section 2.02(b). Investment Earnings on such investments shall be distributed in accordance with Article III hereof. 

(c) Certain Payments. Except for amounts constituting Liquidity Obligations which shall be distributed as provided in
Section 3.02, the Subordination Agent will distribute promptly upon receipt thereof (i) any indemnity payment or expense reimbursement received by it from Spirit in respect of any Trustee, any Liquidity Provider, the Paying Agent, the
Depositary or the Escrow Agent (collectively, the “Payees”) and (ii) any compensation received by it from Spirit under any Operative Agreement in respect of any Payee, directly to the Person entitled thereto, provided
that if such Payee has previously received from the Collection Account such payment, compensation or reimbursement, then the Subordination Agent shall deposit such amount in the Collection Account. 

Section 2.05 Designated Representatives. (a) With the delivery of this Agreement, the Subordination Agent shall furnish to
each Liquidity Provider and each Trustee, and from time to time thereafter may furnish to each Liquidity Provider and each Trustee, at the Subordination Agent’s discretion, or upon any Liquidity Provider’s or any Trustee’s request
(which request shall not be made more than one time in any 12-month period), a certificate (a “Subordination Agent Incumbency Certificate”) of a Responsible Officer of the Subordination Agent
certifying as to the incumbency and specimen signatures of the officers of the Subordination Agent and the attorney-in-fact and agents of the Subordination Agent (the
“Subordination Agent Representatives”) authorized to give Written Notices on behalf of the Subordination Agent hereunder. Until each Liquidity Provider and Trustee receives a subsequent Subordination Agent Incumbency Certificate, it
shall be entitled to rely on the last Subordination Agent Incumbency Certificate delivered to it hereunder. 
 (b) With the delivery of this
Agreement, each Trustee shall furnish to the Subordination Agent, and from time to time thereafter may furnish to the Subordination Agent, at such Trustee’s discretion, or upon the Subordination Agent’s request (which request shall not be
made more 

  

					
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than one time in any 12-month period), a certificate (with respect to each such Trustee, a “Trustee Incumbency Certificate”) of a
Responsible Officer of such Trustee certifying as to the incumbency and specimen signatures of the officers of such Trustee and the attorney-in-fact and agents of such
Trustee (with respect to each such Trustee, the “Trustee Representatives”) authorized to give Written Notices on behalf of such Trustee hereunder. Until the Subordination Agent receives a subsequent Trustee Incumbency Certificate
from a Trustee, it shall be entitled to rely on the last Trustee Incumbency Certificate with respect to such Trustee delivered to it hereunder. 

(c) With the delivery of this Agreement, each Liquidity Provider shall furnish to the Subordination Agent, and from time to time thereafter may
furnish to the Subordination Agent, at such Liquidity Provider’s discretion, or upon the Subordination Agent’s request (which request shall not be made more than one time in any 12-month period), a
certificate (with respect to each such Liquidity Provider, an “LP Incumbency Certificate”) of a Responsible Officer of such Liquidity Provider certifying as to the incumbency and specimen signatures of the officers of such Liquidity
Provider and the attorney-in-fact and agents of such Liquidity Provider (with respect to each such Liquidity Provider, the “LP Representatives” and, together
with the Subordination Agent Representatives and the Trustee Representatives, the “Designated Representatives”) authorized to give Written Notices on behalf of such Liquidity Provider hereunder. Until the Subordination Agent
receives a subsequent LP Incumbency Certificate from a Liquidity Provider, it shall be entitled to rely on the last LP Incumbency Certificate with respect to such Liquidity Provider delivered to it hereunder. 

Section 2.06 Controlling Party. (a) Subject to Section 8.01(b), the Trustees and the Liquidity Providers hereby agree
that, with respect to any Indenture at any given time, the Loan Trustee thereunder will be directed: (i) so long as no Indenture Event of Default has occurred and is continuing thereunder, in taking, or refraining from taking, any action under
such Indenture or with respect to the Equipment Notes issued thereunder by a Majority in Interest of Noteholders of such Equipment Notes (provided that, for so long as the Subordination Agent is the registered holder of such Equipment Notes,
the Subordination Agent shall act with respect to this clause (i) in accordance with the directions of the Trustees (in the case of each such Trustee, with respect to the Equipment Notes issued under such Indenture and held as Trust Property of
such Trust) constituting, in the aggregate, directions with respect to an outstanding principal amount of such Equipment Notes that, if held by such Trustees directly, would make such Trustees a Majority in Interest of Noteholders), and
(ii) after the occurrence and during the continuance of an Indenture Event of Default thereunder, in taking, or refraining from taking, any action under such Indenture or with respect to such Equipment Notes issued thereunder, including
exercising remedies thereunder (including Accelerating the Equipment Notes issued thereunder or foreclosing the Lien created thereunder on the Aircraft securing such Equipment Notes), by the Controlling Party. 

(b) Subject to paragraph (c) below, the “Controlling Party” shall be (i) the Class AA Trustee and (ii) upon
payment of Final Distributions to the holders of Class AA Certificates, but prior to payment of Final Distributions to the holders of Class A Certificates, the Class A Trustee, and (iii) upon payment of Final Distributions to the
holders of Class AA Certificates and Class A Certificates, but prior to payment of Final Distributions to the holders of Class B Certificates, the Class B Trustee, and (iv) upon payment of Final Distributions to the holders
of Class AA Certificates, Class A Certificates and Class B Certificates, but, if any class or classes of Additional Certificates are outstanding, prior to payment of Final Distributions to the holders of the most senior, in priority
of payment of “Expected Distributions” under this Agreement, class of Additional Certificates, the Additional Trustee for the Additional Trust related to such most senior class of Additional Certificates. For purposes of giving effect to
the provisions of Section 2.06(a) and this Section 2.06(b), the Trustees (other than the Controlling Party) irrevocably agree (and the Certificateholders (other than the Certificateholders represented by the Controlling Party) shall be
deemed to agree by virtue of their purchase of Certificates) that the Subordination Agent, as record holder of the Equipment Notes, and subject always to the provisions of Section 2.06(a) and Article VIII, shall exercise its voting rights
in respect of the Equipment Notes so held 

  

					
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by the Subordination Agent as directed by the Controlling Party and any vote so exercised shall be binding upon the Trustees and all Certificateholders. 

The Subordination Agent shall give Written Notice to all of the other parties to this Agreement promptly upon a change in the identity of the
Controlling Party. Each of the parties hereto agrees that it shall not exercise any of the rights of the Controlling Party at such time as it is not the Controlling Party hereunder; provided, however, that nothing herein contained
shall prevent or prohibit any Non-Controlling Party from exercising such rights as shall be specifically granted to such Non-Controlling Party hereunder and under the
other Operative Agreements. 
 (c) Notwithstanding the foregoing, at any time after 18 months from the earliest to occur of (i) the date
on which the entire Available Amount as of such date under any Liquidity Facility shall have been drawn (for any reason other than a Downgrade Drawing or a Non-Extension Drawing but including a Final Drawing,
a Special Termination Drawing or a Downgrade Drawing or Non-Extension Drawing that has been converted into a Final Drawing under such Liquidity Facility) and remains unreimbursed, (ii) the date on which
the entire amount of any Downgrade Drawing or Non-Extension Drawing under any Liquidity Facility shall have become and remain “Applied Downgrade Advances” or “Applied Non-Extension Advances”, as the case may be, under and as defined in such Liquidity Facility and (iii) the date on which all Equipment Notes under all Indentures shall have been Accelerated
(provided that (x) with respect to the period prior to the Delivery Period Termination Date, such Equipment Notes have an aggregate outstanding principal balance in excess of $250,000,000 and (y) in the event of a bankruptcy
proceeding under the Bankruptcy Code in which Spirit is a debtor, any amounts payable in respect of Equipment Notes which have become immediately due and payable by declaration or otherwise shall not be considered Accelerated for purposes of this sub-clause (iii) until the expiration of the 60-Day Period or such longer period as may apply under Section 1110(a)(2)(B) or Section 1110(b) of the Bankruptcy
Code), the Liquidity Provider with the greatest amount of unreimbursed Liquidity Obligations owed to it (so long as such Liquidity Provider has not defaulted in its obligation to make any Drawing under its Liquidity Facility) shall have the right to
elect, by Written Notice to the Subordination Agent and each of the Trustees, to become the Controlling Party hereunder with respect to any Indenture at any time from and including the last day of such
18-month period. 
 (d) [Reserved]. 

(e) The exercise of remedies by the Controlling Party under this Agreement shall be expressly limited by Sections 4.01(a)(ii) and
4.01(a)(iii) hereof. 
 (f) The Controlling Party shall not be entitled to require or obligate any
Non-Controlling Party to provide funds necessary to exercise any right or remedy hereunder. 
 (g)
Notwithstanding anything contained herein, neither the Controlling Party nor the Subordination Agent shall be authorized or empowered to do anything that would cause any Trust to fail to qualify as a “grantor trust” for federal income tax
purposes. 
 ARTICLE III 

RECEIPT, DISTRIBUTION AND APPLICATION OF AMOUNTS RECEIVED 

Section 3.01 Written Notice of Distribution. (a) No later than 3:00 P.M. (New York City time) on the Business Day immediately
preceding each Distribution Date, each of the following Persons shall deliver to the Subordination Agent a Written Notice setting forth the following information as at the close of business on such Business Day: 

  

					
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 (i) With respect to the Class AA Certificates, the Class AA Trustee
shall separately set forth the amounts to be paid in accordance with clause “first” (to reimburse payments made by such Trustee or the Class AA Certificateholders, as the case may be, pursuant to subclause (ii) or (iv) of
clause “first”) of Section 3.02 hereof, subclauses (ii) and (iii) of clause “sixth” of Section 3.02 hereof and clauses “seventh” and “tenth” of Section 3.02 hereof; 

(ii) With respect to the Class A Certificates, the Class A Trustee shall separately set forth the amounts to be paid
in accordance with clause “first” (to reimburse payments made by such Trustee or the Class A Certificateholders, as the case may be, pursuant to subclause (ii) or (iv) of clause “first”) of Section 3.02
hereof, subclauses (ii) and (iii) of clause “sixth” of Section 3.02 hereof and clauses “eighth”, “eleventh” and “twelfth” of Section 3.02 hereof; 

(iii) With respect to the Class B Certificates, the Class B Trustee shall separately set forth the amounts to be paid
in accordance with clause “first” (to reimburse payments made by such Trustee or the Class B Certificateholders, as the case may be, pursuant to subclause (ii) or (iv) of clause “first”) of Section 3.02
hereof, subclauses (ii) and (iii) of clause “sixth” of Section 3.02 hereof and clauses “ninth”, “thirteenth” and “fourteenth” of Section 3.02 hereof; 

(iv) With respect to each Liquidity Facility, the Liquidity Provider thereunder shall separately set forth the amounts to be
paid to it in accordance with subclauses (iii) and (iv) of clause “first” of Section 3.02 hereof, clause “second” of Section 3.02 hereof, clause “third” of Section 3.02 hereof, clause
“fourth” of Section 3.02 hereof and clause “fifth” of Section 3.02 hereof; and 
 (v) Each
Trustee shall set forth the amounts to be paid in accordance with clause “sixth” of Section 3.02 hereof. 
 (b) At such time
as a Trustee or a Liquidity Provider shall have received all amounts owing to it (and, in the case of a Trustee, the Certificateholders for which it is acting) pursuant to Section 3.02 hereof, as applicable, and, in the case of a Liquidity
Provider, its commitment or obligations under the related Liquidity Facility shall have terminated or expired, such Person shall, by a Written Notice, so inform the Subordination Agent, Spirit and each other party to this Agreement. 

(c) As provided in Section 6.05, the Subordination Agent shall be fully protected in relying on any of the information set forth in a
Written Notice provided by any Trustee or any Liquidity Provider pursuant to paragraphs (a) and (b) above and shall have no independent obligation to verify, calculate or recalculate any amount set forth in any Written Notice delivered in
accordance with such paragraphs. 
 (d) Any Written Notice delivered by a Trustee, a Liquidity Provider or the Subordination Agent, as
applicable, pursuant to Section 3.01, if made prior to 10:00 A.M. (New York City time) on any Business Day shall be effective on the date delivered (or if delivered later on a Business Day or if delivered on a day that is not a Business Day
shall be effective as of the next Business Day). Subject to the terms of this Agreement, the Subordination Agent shall as promptly as practicable comply with any such instructions; provided, however, that any transfer of funds pursuant
to any instruction received after 10:00 A.M. (New York City time) on any Business Day may be made on the next succeeding Business Day. 
 (e)
In the event the Subordination Agent shall not receive from any Person any information set forth in paragraph (a) above which is required to enable the Subordination Agent to make a distribution to such Person pursuant to Section 3.02
hereof, the Subordination Agent shall request such information and, failing to receive any such information, the Subordination Agent shall not make such distribution(s) to such Person. In such event, the Subordination Agent shall make distributions
pursuant 

  

					
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to clauses “first” through “fourteenth” of Section 3.02 to the extent it shall have sufficient information to enable it to make such distributions, and shall continue to
hold any funds remaining on the terms hereof, including Section 2.02(b), after making such distributions, until the Subordination Agent shall receive all necessary information to enable it to distribute any funds so withheld, and upon receipt
of the information necessary to distribute any funds so withheld, the Subordination Agent shall distribute such funds. 
 (f) On such dates
(but not more frequently than monthly) as any Liquidity Provider or any Trustee shall request, but in any event automatically at the end of each calendar quarter, the Subordination Agent shall send to such party a written statement reflecting all
amounts on deposit with the Subordination Agent pursuant to Section 3.01(e). 
 The notices required under this Section 3.01(a)
may be in the form of a schedule or similar document provided to the Subordination Agent by the parties referenced therein or by any one of them, which schedule or similar document may state that, unless there has been a prepayment of the Equipment
Notes, such schedule or similar document is to remain in effect until any substitute notice or amendment shall be given to the Subordination Agent by the party providing such notice. 

Section 3.02 Distribution of Amounts on Deposit in the Collection Account. Except as otherwise provided in Sections 2.04,
3.01(e), 3.03, 3.05(b) and 3.05(l), amounts on deposit in the Collection Account (including amounts on deposit in the Special Payments Account) shall be promptly distributed on each Regular Distribution Date (or, in the case of any amount described
in Sections 2.04(a) or 2.04(b), on the Special Distribution Date thereof) in the following order of priority and in accordance with the information provided to the Subordination Agent pursuant to Section 3.01(a): 

first, such amount as shall be required to reimburse (i) the Subordination Agent for any reasonable out-of-pocket costs and expenses actually incurred by it (to the extent not previously reimbursed) or reasonably expected to be incurred by it for the period ending on the
next succeeding Regular Distribution Date (which shall not exceed $150,000 unless approved in writing by the Controlling Party and accompanied by evidence that such costs are actually expected to be incurred) in the protection of, or the realization
of the value of, the Equipment Notes or any Collateral, shall be applied by the Subordination Agent in reimbursement of such costs and expenses, (ii) any Trustee for any amounts of the nature described in clause (i) above actually incurred
by it under the applicable Trust Agreement (to the extent not previously reimbursed), shall be distributed to such Trustee, (iii) any Liquidity Provider for any amounts of the nature described in clause (i) above actually incurred by it
(to the extent not previously reimbursed), shall be distributed to such Liquidity Provider, and (iv) any Liquidity Provider or any Certificateholder for payments, if any, made by it to the Subordination Agent or any Trustee in respect of
amounts described in clause (i) above actually incurred by it (to the extent not previously reimbursed) (collectively, the “Administration Expenses”), shall be distributed to such Liquidity Provider or the applicable Trustee
for the account of such Certificateholder, in each such case, pro rata on the basis of all amounts described in clauses (i) through (iv) above; 

second, such amount as shall be required to pay all accrued and unpaid Liquidity Expenses owed to each Liquidity
Provider (other than amounts distributed pursuant to clause “first” of this Section 3.02) shall be distributed to the Liquidity Providers pro rata on the basis of the amount of Liquidity Expenses owed to each Liquidity Provider; 

third, (i) such amount as shall be required to pay the aggregate amount of accrued and unpaid interest on all
Liquidity Obligations (at the rate, or in the amount, provided in the applicable Liquidity Facility) shall be distributed to the Liquidity Providers pro rata on the basis of the amounts owed to each Liquidity Provider, and, after giving effect to
clause (i) above, (ii) if one or more Special Termination Drawings have been made under the Liquidity Facilities that 

  

					
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have not been converted into a Final Drawing, the outstanding amount of such Special Termination Drawings shall be distributed to the Liquidity Providers pro rata on the basis of the amounts owed
to each Liquidity Provider; 
 fourth, such amount as shall be required (A) if any Cash Collateral Account had
been previously funded as provided in Section 3.05(f), unless (i) on such Distribution Date a Performing Note Deficiency exists and a Liquidity Event of Default shall have occurred and be continuing with respect to the relevant Liquidity
Facility or (ii) a Final Drawing shall have occurred with respect to such Liquidity Facility or an Interest Drawing for such Liquidity Facility shall have been converted into a Final Drawing, to fund such Cash Collateral Account up to its
Required Amount shall be deposited in such Cash Collateral Account, (B) if any Liquidity Facility shall become a Downgraded Facility or a Non-Extended Facility at a time when unreimbursed Interest
Drawings under such Liquidity Facility have reduced the Available Amount thereunder to zero, unless (i) on such Distribution Date a Performing Note Deficiency exists and a Liquidity Event of Default shall have occurred and be continuing with
respect to the relevant Liquidity Facility or (ii) a Final Drawing shall have occurred with respect to such Liquidity Facility or an Interest Drawing for such Liquidity Facility shall have been converted into a Final Drawing, to fund the
related Cash Collateral Account up to its Required Amount shall be deposited in such Cash Collateral Account, and (C) if, with respect to any particular Liquidity Facility neither subclause (A) nor subclause (B) of this clause
“fourth” is applicable, to pay or reimburse the Liquidity Provider in respect of such Liquidity Facility in an amount equal to the outstanding amount of all Liquidity Obligations then due under such Liquidity Facility (other than amounts
distributed pursuant to clauses “first”, “second” or “third” of this Section 3.02), pro rata on the basis of the amounts of all such fundings and/or unreimbursed Liquidity Obligations payable to each Liquidity
Provider; 
 fifth, if, with respect to any particular Liquidity Facility, any amounts are to be distributed pursuant
to either subclause (A) or (B) of clause “fourth” above, then the Liquidity Provider with respect to such Liquidity Facility shall be paid the excess of (x) the aggregate outstanding amount of unreimbursed Advances (whether
or not then due) under such Liquidity Facility over (y) the Required Amount for the relevant Cash Collateral Account without duplication of any amounts distributed pursuant to clauses “first”, “second”, “third”,
and “fourth” of this Section 3.02, pro rata on the basis of such amounts in respect of such Liquidity Provider; 

sixth, such amount as shall be required to reimburse or pay (i) the Subordination Agent for any Tax (other than
Taxes imposed on compensation paid hereunder), expense, fee, charge or other loss incurred by, or any other amount payable to, the Subordination Agent in connection with the transactions contemplated hereby (to the extent not previously reimbursed),
shall be applied by the Subordination Agent in reimbursement of such amount, (ii) each Trustee for any Tax (other than Taxes imposed on compensation paid under the applicable Trust Agreement), expense, fee, charge or other loss incurred by, or
any other amount payable to, such Trustee under the applicable Trust Agreements (to the extent not previously reimbursed), shall be distributed to such Trustee, and (iii) each Certificateholder for payments, if any, made by it pursuant to
Section 5.02 hereof in respect of amounts described in clause (i) above (without duplication of any amounts distributed pursuant to subclause (iv) of clause “first” of this Section 3.02) shall be distributed to the
applicable Trustee for the account of such Certificateholder, in each such case, pro rata, without duplication, on the basis of all amounts described in clauses (i) through (iii) above; 

seventh, such amount as shall be required to pay in full accrued and unpaid interest at the Stated Interest Rate on the
Pool Balance of the Class AA Certificates (excluding interest, if any, 

  

					
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payable with respect to Deposits relating to the Class AA Trust) shall be distributed to the Class AA Trustee; 

eighth, such amount as shall be required to pay unpaid Class A Adjusted Interest to the holders of the Class A
Certificates (excluding interest, if any, payable with respect to Deposits relating to the Class A Trust) shall be distributed to the Class A Trustee; 

ninth, such amount as shall be required to pay unpaid Class B Adjusted Interest to the holders of the Class B
Certificates shall be distributed (excluding interest, if any, payable with respect to Deposits relating to the Class B Trust) shall be distributed to the Class B Trustee; 

tenth, such amount as shall be required to pay in full Expected Distributions to the holders of the Class AA
Certificates on such Distribution Date shall be distributed to the Class AA Trustee; 
 eleventh, such amount as
shall be required to pay in full accrued and unpaid interest at the Stated Interest Rate on the Pool Balance of the Class A Certificates which was not previously paid pursuant to clause “eighth” above to the holders of the
Class A Certificates (excluding interest, if any, payable with respect to Deposits relating to the Class A Trust) shall be distributed to the Class A Trustee; 

twelfth, such amount as shall be required to pay in full Expected Distributions to the holders of the Class A
Certificates on such Distribution Date shall be distributed to the Class A Trustee; 
 thirteenth, such amount as
shall be required to pay in full accrued and unpaid interest at the Stated Interest Rate on the Pool Balance of the Class B Certificates which was not previously paid pursuant to clause “ninth” above to the holders of the Class B
Certificates (excluding interest, if any, payable with respect to Deposits relating to the Class B Trust) shall be distributed to the Class B Trustee; 

fourteenth, such amount as shall be required to pay in full Expected Distributions to the holders of the Class B
Certificates on such Distribution Date shall be distributed to the Class B Trustee; and 
 fifteenth, the
balance, if any, of any such amount remaining thereafter shall be held in the Collection Account for later distribution in accordance with this Article III. 

With respect to clauses “first” and “sixth” above, no amounts shall be reimbursable to the Subordination Agent, any
Trustee, any Liquidity Provider or any Certificateholder for any payments made by any such Person in connection with any Equipment Note that is no longer held by the Subordination Agent (to the extent that such payments relate to periods after such
Equipment Note ceases to be held by the Subordination Agent). 
 Section 3.03 Other Payments. (a) Any payments received by
the Subordination Agent for which no provision as to the application thereof is made in this Agreement shall be distributed by the Subordination Agent (i) in the order of priority specified in Section 3.02 hereof and (ii) to the
extent received or realized at any time after the Final Distributions for each Class of Certificates have been made, in the manner provided in clause “first” of Section 3.02 hereof. 

(b) Notwithstanding the priority of payments specified in Section 3.02, in the event any Investment Earnings on amounts on deposit in any
Cash Collateral Account resulting from an Unapplied Provider Advance or Special Termination Advance are deposited in the Collection Account or the Special Payments Account, such Investment Earnings shall be used to pay interest payable in respect

  

					
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of such Unapplied Provider Advance or such Special Termination Advance, as the case may be, to the extent of such Investment Earnings. 

(c) If the Subordination Agent receives any Scheduled Payment after the Scheduled Payment Date relating thereto, but prior to such payment
becoming an Overdue Scheduled Payment, then the Subordination Agent shall deposit such Scheduled Payment in the Collection Account and promptly distribute such Scheduled Payment in accordance with the priority of distributions set forth in
Section 3.02; provided that, for the purposes of this Section 3.03(c) only, each reference in clauses “tenth”, “twelfth” and “fourteenth” of Section 3.02 to “Distribution Date”
shall be deemed to refer to such Scheduled Payment Date. 
 Section 3.04 Payments to the Trustees and the Liquidity Providers.
Any amounts distributed hereunder to any Liquidity Provider shall be paid by wire transfer of funds to the account that such Liquidity Provider shall provide to the Subordination Agent. The Subordination Agent shall provide a Written Notice of any
such transfer to the applicable Liquidity Provider at the time of such transfer. Any amounts distributed hereunder by the Subordination Agent to any Trustee that is not the same institution as the Subordination Agent shall be paid to such Trustee by
wire transfer of funds at the account such Trustee shall provide to the Subordination Agent. 
 Section 3.05 Liquidity
Facilities. (a) Interest Drawings. If on any Distribution Date, after giving effect to the subordination provisions of this Agreement, the Subordination Agent shall not have sufficient funds for the payment of any amounts due and
owing in respect of accrued interest on the Class AA Certificates, the Class A Certificates or the Class B Certificates (at the Stated Interest Rate for such Class of Certificates) (other than any amount of interest which was due
and payable in respect of the Class AA Certificates, the Class A Certificates or the Class B Certificates on such Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of accrued interest on
the relevant Deposits on such Distribution Date), then, prior to 12:30 p.m. (New York City time) on such Distribution Date, (i) the Subordination Agent shall request a drawing (each such drawing, an “Interest Drawing”) under
the Liquidity Facility with respect to such Class of Certificates in an amount equal to the lesser of (x) an amount sufficient to pay the amount of such accrued interest shortfall (at the applicable Stated Interest Rate for such
Class of Certificates) and (y) the Available Amount under such Liquidity Facility, and (ii) the Subordination Agent shall upon receipt of such amount pay such amount to the Trustee with respect to each such Class of Certificates
in payment of such accrued interest shortfall. 
 (b) Application of Interest Drawings. Notwithstanding anything to the contrary
contained in this Agreement, (i) all payments received by the Subordination Agent in respect of an Interest Drawing under the Class AA Liquidity Facility and all amounts withdrawn by the Subordination Agent from the Class AA Cash
Collateral Account, and payable in each case to the Class AA Certificateholders or the Class AA Trustee, shall be promptly distributed to the Class AA Trustee, (ii) all payments received by the Subordination Agent in respect of
an Interest Drawing under the Class A Liquidity Facility and all amounts withdrawn by the Subordination Agent from the Class A Cash Collateral Account, and payable in each case to the Class A Certificateholders or the Class A
Trustee, shall be promptly distributed to the Class A Trustee and (iii) all payments received by the Subordination Agent in respect of an Interest Drawing under the Class B Liquidity Facility and all amounts withdrawn by the
Subordination Agent from the Class B Cash Collateral Account, and payable in each case to the Class B Certificateholders or the Class B Trustee, shall be promptly distributed to the Class B Trustee. 

(c) Downgrade Drawings. (i) Each Liquidity Provider will promptly, but in any event within 10 days of the occurrence of a Downgrade
Event with respect to it (the date of such occurrence, the “Downgrade Date”), deliver notice to the Subordination Agent and Spirit of the occurrence of such Downgrade Event and the Downgrade Date therefor. After the occurrence of a
Downgrade Event with respect to any Liquidity Provider, each Liquidity Facility provided by such 

  

					
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Liquidity Provider shall become a downgraded facility (a “Downgraded Facility”) on the 35th day after the related Downgrade Date, unless, not later than such 35th day
(or, if earlier, the expiration date of such Downgraded Facility), the Rating Agency whose downgrading of such Liquidity Provider resulted in such Downgrade Event shall have provided a written confirmation to the effect that the occurrence of such
Downgrade Event will not result in the downgrading, withdrawal or suspension of the ratings then issued by such Rating Agency of the related Class of Certificates. Notwithstanding the foregoing, if at any time after the occurrence of such
Downgrade Event, such Liquidity Provider notifies the Subordination Agent in writing that no such confirmation will be provided by such Rating Agency, each Liquidity Facility provided by such Liquidity Provider shall become a Downgraded Facility as
of the date of such notice to the Subordination Agent. 
 (ii) If at any time any Liquidity Facility becomes a Downgraded Facility, not later
than the 35th day after the related Downgrade Date (or, if earlier, the expiration date of such Downgraded Facility), the Liquidity Provider (at its own expense, except as provided in the applicable Fee Letter) under such Downgraded Facility or
Spirit (at its own expense, except as provided in the applicable Fee Letter) may arrange for a Replacement Liquidity Provider to issue and deliver a Replacement Liquidity Facility to the Subordination Agent in accordance with Section 3.05(e).

 (iii) If a Downgraded Facility has not been replaced by a Replacement Liquidity Facility in accordance with Section 3.05(c)(ii), the
Subordination Agent shall, on the 35th day referred to in Section 3.05(c)(ii) (or if such 35th day is not a Business Day, on the next succeeding Business Day) (or, if earlier, the expiration date of such Downgraded Facility), request a drawing
in accordance with and to the extent permitted by such Downgraded Facility (such drawing, a “Downgrade Drawing”) of the Available Amount thereunder. Amounts drawn pursuant to a Downgrade Drawing shall be maintained and invested as
provided in Section 3.05(f) hereof. Subject to Section 3.05(e)(iii), the applicable Liquidity Provider may also (at its own expense, except as provided in the applicable Fee Letter) arrange for a Replacement Liquidity Provider to issue and
deliver a Replacement Liquidity Facility at any time after such Downgrade Drawing so long as such Downgrade Drawing has not been reimbursed in full to such Liquidity Provider. 

(iv) For the avoidance of doubt, the provisions of this Section 3.05(c) shall apply to each occurrence of a Downgrade Event with respect
to a Liquidity Provider, regardless of whether or not one or more Downgrade Events have occurred prior thereto and whether or not any confirmation by a Rating Agency specified in Section 3.05(c)(i) has been obtained with respect to any prior
occurrence of a Downgrade Event. 
 (v) If, at any time after making a Downgrade Drawing, the applicable Liquidity Provider satisfies the
applicable Threshold Rating and delivers written notice to such effect to the Subordination Agent and Spirit, as of the second Business Day following receipt of such notice, (A) such Downgraded Facility shall cease to be a Downgraded Facility,
(B) the Subordination Agent shall withdraw the unapplied amount of such Downgrade Drawing on deposit in the applicable Cash Collateral Account and reimburse such amount to such Liquidity Provider, (C) any applied amount of such Downgrade
Drawing shall be deemed to have been converted to an Interest Drawing as of such date in accordance with the applicable Liquidity Facility, (D) the obligations of such Liquidity Provider shall be reinstated in accordance with the applicable
Liquidity Facility, and (E) the proviso in the definition of Available Amount shall no longer apply to such Downgrade Advance. 
 (d)
Non-Extension Drawings. If any Liquidity Facility with respect to any Class of Certificates is scheduled to expire on a date (the “Stated Expiration Date”) prior to the date that
is 15 days after the Final Legal Distribution Date for such Class of Certificates, then the following provisions shall apply: 

  

					
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 (i) In the case of any initial Liquidity Facility or any other Liquidity Facility having
extension provisions identical to those set forth in Section 2.10 of any initial Liquidity Facility, then, if before the 25th day prior to any anniversary of the Closing Date (such 25th day, the “Notice Date”), the Liquidity
Provider shall have advised the Subordination Agent and Spirit that such Liquidity Facility shall not be extended beyond the immediately following anniversary date of the Closing Date and on or before the Notice Date such Liquidity Facility shall
not have been replaced in accordance with Section 3.05(e), the Subordination Agent shall, on the Notice Date (or as soon thereafter as possible but prior to the date of expiration of the expiring Liquidity Facility (a “Non-Extended Facility”)), in accordance with the terms of such Non-Extended Facility, request a drawing under such
Non-Extended Facility (such drawing, a “Non-Extension Drawing”) of the Available Amount thereunder. 

(ii) In the case of any other Liquidity Facility, no earlier than the 60th day and no later than the 40th day prior to the then applicable
Stated Expiration Date, the Subordination Agent shall request in writing that such Liquidity Provider extend the Stated Expiration Date to the earlier of (i) the date that is 15 days after the Final Legal Distribution Date for such
Class of Certificates and (ii) the date that is the day immediately preceding the 364th day after the last day of the Consent Period (unless the obligations of such Liquidity Provider thereunder are earlier terminated in accordance with
such Liquidity Facility). Whether or not the applicable Liquidity Provider has received a request from the Subordination Agent, such Liquidity Provider shall by notice (the “Consent Notice”) to the Subordination Agent, during the
period commencing on the date that is 60 days prior to the then effective Stated Expiration Date (or if earlier, the date of such Liquidity Provider’s receipt of such request, if any, from the Subordination Agent) and ending on the date that is
25 days prior to such Stated Expiration Date (the “Consent Period”) advise the Subordination Agent whether, in its sole discretion, it agrees to so extend the Stated Expiration Date; provided, that such extension shall not be
effective with respect to such Liquidity Provider if, by notice (the “Withdrawal Notice”) to the Subordination Agent prior to the end of the Consent Period, such Liquidity Provider revokes its Consent Notice. If a Liquidity Provider
advises the Subordination Agent on or before the end of the Consent Period that such Stated Expiration Date shall not be so extended or fails to irrevocably and unconditionally advise the Subordination Agent on or before the end of the Consent
Period that such Stated Expiration Date shall be so extended or gives a Withdrawal Notice to the Subordination Agent prior to the end of the Consent Period (and, in each case, if such Liquidity Provider shall not have been replaced in accordance
with Section 3.05(e)), the Subordination Agent shall, on the date on which the Consent Period ends (or as soon as possible thereafter but prior to the Stated Expiration Date), in accordance with and to the extent permitted by the terms of the Non-Extended Facility, request a Non-Extension Drawing under such Non-Extended Facility of the Available Amount thereunder. 

(iii) Amounts drawn pursuant to a Non-Extension Drawing shall be maintained and invested in accordance
with Section 3.05(f). 
 (e) Issuance of Replacement Liquidity Facility. (i) Subject to Section 3.05(e)(iii) and the
agreements, if any, in the applicable Fee Letter, at any time, Spirit may, at its option and its own expense, with cause or without cause, arrange for a Replacement Liquidity Facility to replace any Liquidity Facility for any Class of
Certificates (including any Replacement Liquidity Facility provided pursuant to Section 3.05(e)(ii)). If such Replacement Liquidity Facility is provided at any time after a Downgrade Drawing, a
Non-Extension Drawing or a Special Termination Drawing has been made, all funds on deposit in the relevant Cash Collateral Account resulting from such Downgrade Drawing,
Non-Extension Drawing or Special Termination Drawing will be returned to the Liquidity Provider being replaced. 

(ii) If any Liquidity Provider shall determine not to extend its Liquidity Facility in accordance with Section 3.05(d), then such
Liquidity Provider may, at its option and its own expense, arrange for a Replacement Liquidity Facility to replace such Liquidity Facility during the period no earlier than 40 days and no later than 25 days prior to the then effective Stated
Expiration Date of such 

  

					
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Liquidity Facility. At any time after a Non-Extension Drawing has been made under any Liquidity Facility, the Liquidity Provider thereunder may, at its
option and its own expense, arrange for a Replacement Liquidity Facility to replace the Liquidity Facility under which such Non-Extension Drawing has been made. 

(iii) No Replacement Liquidity Facility arranged by Spirit or a Liquidity Provider in accordance with clause (i) or (ii) above or
pursuant to Section 3.05(c), respectively, shall become effective and no such Replacement Liquidity Facility shall be deemed a “Liquidity Facility” under the Operative Agreements, unless and until (A) each of the conditions
referred to in sub-clauses (iv)(x) and (z) below shall have been satisfied, (B) if such Replacement Liquidity Facility shall materially adversely affect the rights, remedies, interests or
obligations of the Class AA Certificateholders, the Class A Certificateholders or the Class B Certificateholders under any of the Operative Agreements, the applicable Trustee shall have consented, in writing, to the execution and
issuance of such Replacement Liquidity Facility and (C) in the case of a Replacement Liquidity Facility arranged by a Liquidity Provider under Section 3.05(e)(ii) or pursuant to Section 3.05(c), such Replacement Liquidity Facility is
reasonably acceptable to Spirit. 
 (iv) In connection with the issuance of each Replacement Liquidity Facility, the Subordination Agent
shall (x) prior to the issuance of such Replacement Liquidity Facility, obtain written confirmation from each Rating Agency to the effect that such Replacement Liquidity Facility will not cause a reduction, withdrawal or suspension of any
rating then in effect for the related Class of Certificates by such Rating Agency (without regard to any downgrading of any rating of the Liquidity Provider being replaced pursuant to Section 3.05(c)), (y) pay all Liquidity
Obligations then owing to the replaced Liquidity Provider (which payment shall be made first from available funds in the applicable Cash Collateral Account as described in Section 3.05(f), and thereafter from any other available source,
including, without limitation, a drawing under the Replacement Liquidity Facility) and (z) cause the issuer of the Replacement Liquidity Facility to deliver the Replacement Liquidity Facility to the Subordination Agent, together with a legal
opinion opining that such Replacement Liquidity Facility is an enforceable obligation of such Replacement Liquidity Provider; provided that, in the case of a Combination Replacement Liquidity Facility, if the existing Class AA Liquidity
Provider provides the irrevocable revolving credit agreement described in clause (i) of the definition of “Replacement Liquidity Facility,” clause (y) shall not apply and only the Person providing the irrevocable revolving credit
agreement described in clause (ii) of the definition of “Replacement Liquidity Facility” shall be required to deliver such revolving credit agreement. 

(v) Upon satisfaction of the conditions set forth in clauses (iii) and (iv) of this Section 3.05(e) with respect to a
Replacement Liquidity Facility, (1) the replaced Liquidity Facility shall terminate, (2) the Subordination Agent shall, if and to the extent so requested by Spirit or the Liquidity Provider being replaced, execute and deliver any
certificate or other instrument required in order to terminate the replaced Liquidity Facility, shall surrender the replaced Liquidity Facility to the Liquidity Provider being replaced and shall execute and deliver the Replacement Liquidity Facility
and any associated Fee Letter, (3) each of the parties hereto shall enter into any amendments to this Agreement necessary to give effect to (a) the replacement of the applicable Liquidity Provider with the applicable Replacement Liquidity
Provider and (b) the replacement of the applicable Liquidity Facility with the applicable Replacement Liquidity Facility, and (4) the applicable Replacement Liquidity Provider shall be deemed to be a Liquidity Provider with the rights and
obligations of a Liquidity Provider hereunder and under the other Operative Agreements and such Replacement Liquidity Facility shall be deemed to be a Liquidity Facility hereunder and under the other Operative Agreements. 

(f) Cash Collateral Accounts; Withdrawals; Investments. In the event the Subordination Agent shall draw all Available Amounts under the
Class AA Liquidity Facility, the Class A Liquidity Facility or the Class B Liquidity Facility pursuant to Section 3.05(c), 3.05(d), 3.05(i) or 

  

					
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3.05(k), or in the event amounts are to be deposited in the Class AA Cash Collateral Account, the Class A Cash Collateral Account or the Class B Cash Collateral Account pursuant to
subclause (A) or (B) of clause “fourth” of Section 3.02, amounts so drawn or to be deposited, as the case may be, shall be deposited by the Subordination Agent in the Class AA Cash Collateral Account, the Class A
Cash Collateral Account or the Class B Cash Collateral Account, as applicable. All amounts on deposit in each Cash Collateral Account shall be invested and reinvested in Eligible Investments in accordance with Section 2.02(b). 

On each Interest Payment Date (or, in the case of any Special Distribution Date with respect to the distribution of a Special Payment, on such
Special Distribution Date), Investment Earnings on amounts on deposit in each Cash Collateral Account with respect to any Liquidity Facility (or in the case of any Special Distribution Date with respect to the distribution of a Special Payment, so
long as no Indenture Event of Default shall have occurred and be continuing under any Indenture, a fraction of such Investment Earnings equal to the Section 2.04 Fraction) shall be deposited in the Collection Account (or, in the case of any
Special Distribution Date with respect to the distribution of a Special Payment, the Special Payments Account) and applied on such Interest Payment Date (or Special Distribution Date, as the case may be) in accordance with Section 3.02 or 3.03
(as applicable). The Subordination Agent shall deliver a written statement to Spirit and each Liquidity Provider one day prior to each Interest Payment Date and Special Distribution Date setting forth the aggregate amount of Investment Earnings held
in the Cash Collateral Accounts as of such date. In addition, from and after the date funds are so deposited, the Subordination Agent shall make withdrawals from such accounts as follows: 

(i) on each Distribution Date, the Subordination Agent shall, to the extent it shall not have received funds to pay accrued and
unpaid interest due and owing on the Class AA Certificates (at the Stated Interest Rate for the Class AA Certificates) (other than any amount of interest which was due and payable in respect of the Class AA Certificates on such
Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of accrued interest on the relevant Deposits on such Distribution Date) after giving effect to the subordination provisions of this Agreement, withdraw
from the Class AA Cash Collateral Account, and pay to the Class AA Trustee, an amount equal to the lesser of (x) an amount necessary to pay accrued and unpaid interest (at the Stated Interest Rate for the Class AA Certificates)
on such Class AA Certificates (other than any amount of interest which was due and payable in respect of the Class AA Certificates on such Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of
accrued interest on the relevant Deposits on such Distribution Date) and (y) the amount on deposit in the Class AA Cash Collateral Account; 

(ii) on each Distribution Date, the Subordination Agent shall, to the extent it shall not have received funds to pay accrued
and unpaid interest due and owing on the Class A Certificates (at the Stated Interest Rate for the Class A Certificates) (other than any amount of interest which was due and payable in respect of the Class A Certificates on such
Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of accrued interest on the relevant Deposits on such Distribution Date) after giving effect to the subordination provisions of this Agreement, withdraw
from the Class A Cash Collateral Account, and pay to the Class A Trustee, an amount equal to the lesser of (x) an amount necessary to pay accrued and unpaid interest (at the Stated Interest Rate for the Class A Certificates) on
such Class A Certificates (other than any amount of interest which was due and payable in respect of the Class A Certificates on such Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of
accrued interest on the relevant Deposits on such Distribution Date) and (y) the amount on deposit in the Class A Cash Collateral Account; 

  

					
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 (iii) on each Distribution Date, the Subordination Agent shall, to the extent it
shall not have received funds to pay accrued and unpaid interest due and owing on the Class B Certificates (at the Stated Interest Rate for the Class B Certificates) (other than any amount of interest which was due and payable in respect
of the Class B Certificates on such Distribution Date but which remains unpaid due to the failure of the Depositary to pay any amount of accrued interest on the relevant Deposits on such Distribution Date) after giving effect to the
subordination provisions of this Agreement, withdraw from the Class B Cash Collateral Account, and pay to the Class B Trustee, an amount equal to the lesser of (x) an amount necessary to pay accrued and unpaid interest (at the Stated
Interest Rate for the Class B Certificates) on such Class B Certificates (other than any amount of interest which was due and payable in respect of the Class B Certificates on such Distribution Date but which remains unpaid due to the
failure of the Depositary to pay any amount of accrued interest on the relevant Deposits on such Distribution Date) and (y) the amount on deposit in the Class B Cash Collateral Account; 

(iv) on each date on which the Pool Balance of the Class AA Trust shall have been reduced by payments made to the
Class AA Certificateholders pursuant to Section 3.02 hereof or pursuant to Section 2.03 of the Escrow and Paying Agent Agreement for such Class, the Subordination Agent shall withdraw from the Class AA Cash Collateral Account
such amount as is necessary so that, after giving effect to the reduction of the Pool Balance on such date (and any reduction in the amounts on deposit in the Class AA Cash Collateral Account resulting from a prior withdrawal of amounts on
deposit in the Class AA Cash Collateral Account on such date) and any transfer of Investment Earnings from such Cash Collateral Account to the Collection Account or the Special Payments Account on such date, an amount equal to the sum of the
Required Amount (with respect to the Class AA Liquidity Facility) plus (if on a Distribution Date not coinciding with an Interest Payment Date) Investment Earnings on deposit in such Cash Collateral Account (after giving effect to any such
transfer of Investment Earnings) will remain on deposit in the Class AA Cash Collateral Account and shall first, pay such withdrawn amount to the Class AA Liquidity Provider until the Class AA Liquidity Obligations owing to such
Liquidity Provider shall have been paid in full, and second, deposit any remaining withdrawn amount in the Collection Account; 

(v) on each date on which the Pool Balance of the Class A Trust shall have been reduced by payments made to the
Class A Certificateholders pursuant to Section 3.02 hereof or pursuant to Section 2.03 of the Escrow and Paying Agent Agreement for such Class, the Subordination Agent shall withdraw from the Class A Cash Collateral Account such
amount as is necessary so that, after giving effect to the reduction of the Pool Balance on such date (and any reduction in the amounts on deposit in the Class A Cash Collateral Account resulting from a prior withdrawal of amounts on deposit in
the Class A Cash Collateral Account on such date) and any transfer of Investment Earnings from such Cash Collateral Account to the Collection Account or the Special Payments Account on such date, an amount equal to the sum of the Required
Amount (with respect to the Class A Liquidity Facility) plus (if on a Distribution Date not coinciding with an Interest Payment Date) Investment Earnings on deposit in such Cash Collateral Account (after giving effect to any such transfer of
Investment Earnings) will remain on deposit in the Class A Cash Collateral Account and shall first, pay such withdrawn amount to the Class A Liquidity Provider until the Class A Liquidity Obligations owing to the Class A
Liquidity Provider shall have been paid in full, and second, deposit any remaining withdrawn amount in the Collection Account; 

(vi) on each date on which the Pool Balance of the Class B Trust shall have been reduced by payments made to the
Class B Certificateholders pursuant to Section 3.02 hereof or pursuant to Section 2.03 of the Escrow and Paying Agent Agreement for such Class, the Subordination Agent shall withdraw from the Class B Cash Collateral Account such
amount as is 

  

					
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necessary so that, after giving effect to the reduction of the Pool Balance on such date (and any reduction in the amounts on deposit in the Class B Cash Collateral Account resulting from a
prior withdrawal of amounts on deposit in the Class B Cash Collateral Account on such date) and any transfer of Investment Earnings from such Cash Collateral Account to the Collection Account or the Special Payments Account on such date, an
amount equal to the sum of the Required Amount (with respect to the Class B Liquidity Facility) plus (if on a Distribution Date not coinciding with an Interest Payment Date) Investment Earnings on deposit in such Cash Collateral Account (after
giving effect to any such transfer of Investment Earnings) will remain on deposit in the Class B Cash Collateral Account and shall first, pay such withdrawn amount to the Class B Liquidity Provider until the Class B Liquidity
Obligations owing to such Liquidity Provider shall have been paid in full, and second, deposit any remaining withdrawn amount in the Collection Account; 

(vii) if a Replacement Liquidity Facility for any relevant Class of Certificates shall be delivered to the Subordination
Agent following the date on which funds have been deposited into the Cash Collateral Account for such Class of Certificates, the Subordination Agent shall withdraw all amounts remaining on deposit in such Cash Collateral Account and shall pay
such amounts to the replaced Liquidity Provider, if any, until all Liquidity Obligations owed to such Person shall have been paid in full, and deposit any remaining amount in the Collection Account; 

(viii) if the Liquidity Provider with respect to a Downgraded Facility satisfies the applicable Threshold Rating and delivers
written notice to such effect to the Subordination Agent and Spirit, on the second Business Day following receipt of such notice, the Subordination Agent shall withdraw all amounts remaining on deposit in the applicable Cash Collateral Account
constituting the unapplied amount of any Downgrade Drawing and shall pay such amounts to such Liquidity Provider and the obligations of such Liquidity Provider shall be reinstated in accordance with the applicable Liquidity Facility; and 

(ix) following (x) the payment of Final Distributions or (y) the Final Legal Distribution Date with respect to any
Class of Certificates covered by a Liquidity Facility, on the date on which the Subordination Agent shall have been notified by the Liquidity Provider for such Class of Certificates that the Liquidity Obligations owed to such Liquidity
Provider have been paid in full, or, if earlier, the first Business Day after such Final Legal Distribution Date, the Subordination Agent shall withdraw all amounts on deposit in the Cash Collateral Account in respect of such Class of
Certificates, if any, and shall deposit such amounts in the Collection Account. 
 (g) Reinstatement. With respect to any Interest
Drawing under the Liquidity Facility for any relevant Trust, upon the reimbursement of the applicable Liquidity Provider for all or any part of the amount of such Interest Drawing, together with any accrued interest thereon, the Available Amount of
such Liquidity Facility shall be reinstated by an amount equal to the amount of such Interest Drawing so reimbursed to the applicable Liquidity Provider but not to exceed the Stated Amount for such Liquidity Facility; provided,
however, that the Available Amount of such Liquidity Facility shall not be so reinstated in part or in full pursuant to the foregoing provisions of this Section 3.05(g) at any time if (x) both a Performing Note Deficiency exists and
a Liquidity Event of Default shall have occurred and be continuing with respect to the relevant Liquidity Facility or (y) a Final Drawing, Downgrade Drawing, Non-Extension Drawing or Special Termination
Drawing shall have occurred with respect to such Liquidity Facility or an Interest Drawing shall have been converted into a Final Drawing. Notwithstanding anything to the contrary, in the event that, with respect to any particular Liquidity
Facility, (i) funds are withdrawn from the related Cash Collateral Account pursuant to clause (i) or (ii) of Section 3.05(f) or (ii) such Liquidity Facility shall become a Downgraded Facility or a Non-Extended Facility at a time when unreimbursed Interest Drawings under such Liquidity Facility have reduced the Available Amount thereunder to zero, then funds received by the Subordination Agent at any time,
other 

  

					
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than (x) any time when both a Performing Note Deficiency exists and a Liquidity Event of Default shall have occurred and be continuing with respect to such Liquidity Facility or (y) any
time after a Final Drawing shall have occurred with respect to such Liquidity Facility or an Interest Drawing for such Liquidity Facility shall have been converted into a Final Drawing, shall be deposited in such Cash Collateral Account as and to
the extent provided in clause “fourth” of Section 3.02 and applied in accordance with Section 3.05(f). 
 (h)
Reimbursement. The amount of each drawing under the Liquidity Facilities shall be due and payable, together with interest thereon, on the dates and at the rates, respectively, provided in the Liquidity Facilities. 

(i) Final Drawing. Upon receipt from a Liquidity Provider of a Termination Notice with respect to its applicable Liquidity Facility, the
Subordination Agent shall, not later than the date specified in such Termination Notice, in accordance with the terms of such Liquidity Facility, request a drawing under such Liquidity Facility of the Available Amount thereunder (a “Final
Drawing”). Amounts drawn pursuant to a Final Drawing shall be maintained and invested in accordance with Section 3.05(f). 

(j) Adjustments of Stated Amount. Promptly following each date on which the Required Amount of the Liquidity Facility for a relevant
Class of Certificates is reduced as a result of a reduction in the Pool Balance with respect to such Certificates or otherwise, the Subordination Agent shall, if any such Liquidity Facility provides for reductions of the Stated Amount of such
Liquidity Facility and if such reductions are not automatic, request such Liquidity Provider for such Class of Certificates to reduce such Stated Amount to an amount equal to the Required Amount with respect to such Liquidity Facility (as
calculated by the Subordination Agent after giving effect to such payment). Each such request shall be made in accordance with the provisions of the applicable Liquidity Facility. 

(k) Special Termination Drawing. Upon receipt from a Liquidity Provider of a Special Termination Notice with respect to any Liquidity
Facility, the Subordination Agent shall, not later than the date specified in such Special Termination Notice, in accordance with the terms of such Liquidity Facility, request a drawing under such Liquidity Facility of the Available Amount
thereunder (a “Special Termination Drawing”). Amounts drawn pursuant to a Special Termination Drawing shall be maintained and invested in accordance with Section 3.05(f) hereof. 

(l) Relation to Subordination Provisions. Interest Drawings under the Liquidity Facilities and withdrawals from the Cash Collateral
Accounts, in each case, in respect of interest on the Certificates of any Class, will be distributed to the Trustee for such Class of Certificates, notwithstanding Sections 2.01(b) and 3.02. 

(m) Assignment of Liquidity Facility. The Subordination Agent agrees not to consent to the assignment by any Liquidity Provider of any
of its rights or obligations under any Liquidity Facility or any interest therein unless (i) Spirit shall have consented to such assignment and (ii) each Rating Agency shall have provided a Ratings Confirmation with respect to each
Class of Certificates then rated by such Rating Agency in connection with such assignment; provided, that the Subordination Agent shall consent to such assignment if the conditions in the foregoing clauses (i) and (ii) are
satisfied, and the foregoing is not intended to and shall not be construed to limit the rights of any initial Liquidity Provider under Section 3.05(e)(ii). 

  

					
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 ARTICLE IV 

EXERCISE OF REMEDIES 

Section 4.01 Directions from the Controlling Party. (a) (i) Following the occurrence and during the continuation of an
Indenture Event of Default under any Indenture, the Controlling Party shall direct the Subordination Agent, as the holder of the Equipment Notes issued under such Indenture, which in turn shall direct the Loan Trustee under such Indenture, in the
exercise of remedies available to the holders of such Equipment Notes, including, without limitation, the ability to vote all such Equipment Notes held by the Subordination Agent in favor of Accelerating such Equipment Notes in accordance with the
provisions of such Indenture. Subject to Section 4.01(a)(iii), if the Equipment Notes issued pursuant to any Indenture have been Accelerated following an Indenture Event of Default with respect thereto, the Controlling Party may direct the
Subordination Agent to sell, assign, contract to sell or otherwise dispose of and deliver all (but not less than all) of such Equipment Notes to any Person at public or private sale, at any location at the option of the Controlling Party, all upon
such terms and conditions as the Controlling Party may reasonably deem advisable and in accordance with applicable law. 
 (ii) Following the
occurrence and during the continuation of an Indenture Event of Default under any Indenture, in the exercise of remedies pursuant to such Indenture, the Loan Trustee under such Indenture may be directed to lease the related Aircraft to any Person
(including Spirit) so long as the Loan Trustee in doing so acts in a “commercially reasonable” manner within the meaning of Article 9 of the Uniform Commercial Code as in effect in any applicable jurisdiction (including Sections 9-610 and 9-627 thereof). 
 (iii) Notwithstanding
the foregoing, so long as any Certificates remain Outstanding, during the period ending on the date which is nine months after the earlier of (x) the Acceleration of the Equipment Notes issued pursuant to any Indenture or (y) the
occurrence of a Spirit Bankruptcy Event, without the consent of each Trustee (other than the Trustee of any Trust all of the Certificates of which are held or beneficially owned by Spirit and/or its Affiliates), no Aircraft subject to the Lien of
such Indenture or such Equipment Notes may be sold if the net proceeds from such sale would be less than the Minimum Sale Price for such Aircraft or such Equipment Notes. 

(iv) Upon the occurrence and continuation of an Indenture Event of Default under any Indenture, the Subordination Agent will obtain three
desktop appraisals from the Appraisers selected by the Controlling Party setting forth the current market value, current lease rate and distressed value (in each case, as defined by the International Society of Transport Aircraft Trading or any
successor organization) of the Aircraft subject to such Indenture (each such appraisal, an “Appraisal” and the current market value appraisals being referred to herein as the “Post-Default Appraisals”). For so long
as any Indenture Event of Default shall be continuing under any Indenture, and without limiting the right of the Controlling Party to request more frequent Appraisals, the Subordination Agent will obtain updated Appraisals on the date that is 364
days from the date of the most recent Appraisal (or if a Spirit Bankruptcy Event shall have occurred and is continuing, on the date that is 180 days from the date of the most recent Appraisal) and shall (acting on behalf of each Trustee) post such
Appraisals on DTC’s Internet bulletin board or make such other commercially reasonable efforts as the Subordination Agent may deem appropriate to make such Appraisals available to all Certificateholders. 

(b) Following the occurrence and during the continuance of an Indenture Event of Default under any Indenture, the Controlling Party shall take
such actions as it may reasonably deem most effectual to complete the sale or other disposition of the relevant Aircraft or Equipment Notes. In addition, in lieu of any sale, assignment, contract to sell or other disposition, the Controlling Party
may maintain or cause the Subordination Agent to maintain possession of such Equipment Notes and continue 

  

					
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to apply monies received in respect of such Equipment Notes in accordance with Article III hereof. In addition, in lieu of such sale, assignment, contract to sell or other disposition, or in
lieu of such maintenance of possession, the Controlling Party may direct the Subordination Agent to, subject to the terms and conditions of the related Indenture, instruct the Loan Trustee under such Indenture to foreclose on the Lien on the related
Aircraft or to take any other remedial action permitted under such Indenture or under any applicable law. 
 (c) If following a Spirit
Bankruptcy Event and during the pendency thereof, the Controlling Party receives a proposal from or on behalf of Spirit to restructure the financing of any one or more of the Aircraft, the Controlling Party shall promptly thereafter give the
Subordination Agent, each Trustee and each Liquidity Provider that has not made a Final Drawing notice of the material economic terms and conditions of such restructuring proposal whereupon the Subordination Agent acting on behalf of each Trustee
shall post such terms and conditions of such restructuring proposal on DTC’s Internet bulletin board or make such other commercially reasonable efforts as the Subordination Agent may deem appropriate to make such terms and conditions available
to all Certificateholders. Thereafter, neither the Subordination Agent nor any Trustee, whether acting on instructions of the Controlling Party or otherwise, may, without the consent of each Trustee and each Liquidity Provider that has not made a
Final Drawing, enter into any term sheet, stipulation or other agreement (a “Restructuring Arrangement”) (whether in the form of an adequate protection stipulation, an extension under Section 1110(b) of the Bankruptcy Code or
otherwise) to effect any such restructuring proposal with or on behalf of Spirit unless and until the material economic terms and conditions of such restructuring proposal shall have been made available to all Certificateholders and each Liquidity
Provider that has not made a Final Drawing for a period of not less than 15 calendar days (except that such requirement shall not apply to any such term sheet, stipulation or other agreement that is to be effective on or as of any date occurring
during the 60-Day Period and that is initially effective for a period not exceeding three months from the expiry of the 60-Day Period (an “Interim Restructuring
Arrangement”)). The foregoing provisions of this Section 4.01(c): (i) shall not apply to any extension of a Restructuring Arrangement with respect to which such provisions have been complied with in connection with the original
entry thereof if the possibility of such extension has been disclosed in satisfaction of the notification requirements of such provisions and such extension shall not amend or modify any of the other terms and conditions of such Restructuring
Arrangement and (ii) shall apply to the initial extension of an Interim Restructuring Arrangement beyond the three months following the expiry of the 60-Day Period but not to any subsequent extension of
such Interim Restructuring Arrangement, if the possibility of such subsequent extension has been disclosed in satisfaction of the notification requirements of such provisions and such subsequent extension shall not amend or modify any of the other
terms and conditions of such Interim Restructuring Arrangement. In the event that any Certificateholder gives irrevocable notice of the exercise of its right to purchase all (but not less than all) of the Class of Certificates represented by
the then Controlling Party pursuant to the applicable Trust Agreement, prior to the expiry of the 15-day notice period specified above, such Controlling Party may not direct the Subordination Agent or any
Trustee to enter into any such restructuring proposal with respect to any of the Aircraft, unless and until such Certificateholder shall fail to purchase such Class of Certificates on the date that it is required to make such purchase. 

Section 4.02 Remedies Cumulative. To the extent permitted by applicable law, each and every right, power and remedy given to the
Trustees, the Liquidity Providers, the Controlling Party or the Subordination Agent specifically or otherwise in this Agreement shall be cumulative and shall be in addition to every other right, power and remedy herein specifically given or now or
hereafter existing at law, in equity or by statute, and each and every right, power and remedy whether specifically herein given or otherwise existing may, subject always to the terms and conditions hereof, be exercised from time to time and as
often and in such order as may be deemed expedient by any Trustee, any Liquidity Provider, the Controlling Party or the Subordination Agent, as appropriate, and the exercise or the beginning of the exercise of any right, power or remedy shall not be
construed to be a waiver of the right to exercise at the 

  

					
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same time or thereafter any other right, power or remedy. No delay or omission by any Trustee, any Liquidity Provider, the Controlling Party or the Subordination Agent in the exercise of any
right, remedy or power or in the pursuit of any remedy shall, to the extent permitted by applicable law, impair any such right, power or remedy or be construed to be a waiver of any default or to be an acquiescence therein. 

Section 4.03 Discontinuance of Proceedings. In case any party to this Agreement (including the Controlling Party in such capacity)
shall have instituted any Proceeding to enforce any right, power or remedy under this Agreement by foreclosure, entry or otherwise, and such Proceeding shall have been discontinued or abandoned for any reason or shall have been determined adversely
to the Person instituting such Proceeding, then and in every such case each such party shall, subject to any determination in such Proceeding, be restored to its former position and rights hereunder, and all rights, remedies and powers of such party
shall continue as if no such Proceeding had been instituted. 
 Section 4.04 Right of Certificateholders and the
Liquidity Providers to Receive Payments Not to Be Impaired. Anything in this Agreement to the contrary notwithstanding but subject to each Trust Agreement, the right of any Certificateholder or any Liquidity Provider, respectively, to receive
payments hereunder (including, without limitation, pursuant to Section 3.02) when due, or to institute suit for the enforcement of any such payment on or after the applicable Distribution Date, shall not be impaired or affected without the
consent of such Certificateholder or such Liquidity Provider, respectively. 
 ARTICLE V 

DUTIES OF THE SUBORDINATION AGENT; AGREEMENTS OF TRUSTEES, ETC. 

Section 5.01 Notice of Indenture Event of Default or Triggering Event. (a) If the Subordination Agent shall have knowledge of
an Indenture Event of Default or a Triggering Event, the Subordination Agent shall promptly give notice thereof to the Rating Agencies, Spirit, the Liquidity Providers and the Trustees by telegram, cable, facsimile or telephone (to be promptly
confirmed in writing), unless such Indenture Event of Default or Triggering Event shall have been cured or waived. For all purposes of this Agreement, in the absence of actual knowledge, the Subordination Agent shall not be deemed to have knowledge
of any Indenture Event of Default or Triggering Event unless notified in writing by Spirit, one or more Trustees, one or more Liquidity Providers or one or more Certificateholders; and “actual knowledge” (as used in the foregoing clause)
of the Subordination Agent shall mean actual knowledge of an officer in the Corporate Trust Office of the Subordination Agent. 
 (b)
Other Notices. The Subordination Agent will furnish to each Liquidity Provider and each Trustee, promptly upon receipt thereof, duplicates or copies of all reports, notices, requests, demands, certificates, financial statements and other
instruments furnished to the Subordination Agent as registered holder of the Equipment Notes or otherwise in its capacity as Subordination Agent to the extent the same shall not have been otherwise directly distributed to such Liquidity Provider or
such Trustee, as applicable, pursuant to any other Operative Agreement. 
 (c) Securities Position. Upon the occurrence of an
Indenture Event of Default, the Subordination Agent shall instruct the Trustees to, and the Trustees shall, request that DTC post on its Internet bulletin board a securities position listing setting forth the names of all the parties reflected on
DTC’s books as holding interests in the Certificates. 
 (d) Reports. Promptly after the occurrence of a Triggering Event or an
Indenture Event of Default resulting from the failure of Spirit to make payments on any Equipment Note and on every Regular Distribution Date while the Triggering Event or such Indenture Event of Default shall be continuing, the Subordination Agent
will provide to the Trustees, the Liquidity Providers, the Rating Agencies and Spirit a statement setting forth the following information: 

  

					
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 (i) after a Spirit Bankruptcy Event, with respect to each Aircraft, whether such
Aircraft is (A) subject to the 60-Day Period, (B) subject to an election by Spirit under Section 1110(a) of the Bankruptcy Code, (C) covered by an agreement contemplated by
Section 1110(b) of the Bankruptcy Code or (D) not subject to any of (A), (B) or (C); 
 (ii) to the best of the
Subordination Agent’s knowledge, after requesting such information from Spirit, (A) whether the Aircraft are currently in service or parked in storage, (B) the maintenance status of the Aircraft and (C) the location of the
Engines (as defined in the Indentures); 
 (iii) the current Pool Balance of each Class of Certificates, the Eligible A
Pool Balance, the Eligible B Pool Balance and the outstanding principal amount of all Equipment Notes; 
 (iv) the expected
amount of interest which will have accrued on the Equipment Notes and on the Certificates as of the next Regular Distribution Date; 

(v) the amounts paid to each Person on such Distribution Date pursuant to this Agreement; 

(vi) details of the amounts paid on such Distribution Date identified by reference to the relevant provision of this Agreement
and the source of payment (by Aircraft and party); 
 (vii) if the Subordination Agent has made a Final Drawing or a Special
Termination Drawing under any Liquidity Facility; 
 (viii) the amounts currently owed to each Liquidity Provider; 

(ix) the amounts drawn under each Liquidity Facility; and 

(x) after a Spirit Bankruptcy Event, any operational reports filed by Spirit with the bankruptcy court which are available to
the Subordination Agent on a non-confidential basis. 
 Section 5.02 Indemnification.
The Subordination Agent shall not be required to take any action or refrain from taking any action under Article IV unless the Subordination Agent shall have received indemnification against any risks that may be incurred in connection
therewith in form and substance reasonably satisfactory to it, including, without limitation, adequate advances against costs (including fees and expenses) that may be incurred by it in connection therewith. The Subordination Agent shall not be
required to take any action under Article IV, nor shall any other provision of this Agreement or any other Operative Agreement be deemed to impose a duty on the Subordination Agent to take any action, if the Subordination Agent shall have been
advised by outside counsel that such action is contrary to the terms hereof or is otherwise contrary to law. Under no circumstances shall the Subordination Agent be required to expend or risk its own funds or otherwise incur any financial liability
in performing its duties or exercising its rights or powers hereunder if it shall have reasonable grounds for believing that repayment of such funds is not assured to it. 

Section 5.03 No Duties Except as Specified in Intercreditor Agreement. The Subordination Agent shall
not have any duty or obligation to take or refrain from taking any action under, or in connection with, this Agreement, except as expressly provided by the terms of this Agreement; and no implied duties or obligations shall be read into this
Agreement against the Subordination Agent. The Subordination Agent agrees that it will, in its individual capacity and at its own cost and expense (but without any right of indemnity in respect of any such cost or expense) promptly take such action
as may be necessary to discharge duly all Liens on any of the Trust Accounts or any monies deposited therein 

  

					
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that are attributable to the Subordination Agent in its individual capacity and that are unrelated to the transaction contemplated hereby and by the other Operative Agreements. 

Section 5.04 Notice from the Liquidity Providers and Trustees. If any Liquidity Provider or Trustee has notice of an Indenture
Event of Default or a Triggering Event, such Person shall promptly give notice thereof to all other Liquidity Providers and Trustees and to the Subordination Agent; provided, however, that no such Person shall have any liability
hereunder as a result of its failure to deliver any such notice. 
 ARTICLE VI 

THE SUBORDINATION AGENT 

Section 6.01 Authorization; Acceptance of Trusts and Duties. Each Trustee hereby designates and appoints the Subordination Agent
as the agent and trustee of such Trustee under the applicable Liquidity Facility (if any) and authorizes the Subordination Agent to enter into the applicable Liquidity Facility as agent and trustee for such Trustee. Each of the Liquidity Providers
and the Trustees hereby designates and appoints the Subordination Agent as the Subordination Agent under this Agreement. WTNA accepts the trusts and duties hereby created and applicable to it and agrees to perform such duties, but only upon the
terms of this Agreement and agrees to receive, handle and disburse all monies received by it in accordance with the terms hereof. The Subordination Agent shall have no liability hereunder except (a) for its own willful misconduct or negligence,
(b) as provided in Section 2.02 and the last sentence of Section 5.03, (c) for liabilities that may result from the inaccuracy of any representation or warranty of the Subordination Agent made in its individual capacity in any
Operative Agreement and (d) as otherwise expressly provided herein or in the other Operative Agreements. 
 Section 6.02
Absence of Duties. The Subordination Agent shall have no duty to see to any recording or filing of this Agreement or any other document, or to see to the maintenance of any such recording or filing. 

Section 6.03 No Representations or Warranties as to Documents. The Subordination Agent shall not be deemed to have made any
representation or warranty as to the validity, legality or enforceability of this Agreement or any other Operative Agreement or as to the correctness of any statement contained herein or therein (other than the representations and warranties of the
Subordination Agent made in its individual capacity under any Operative Agreement), except that the Subordination Agent hereby represents and warrants that each of said specified documents to which it is a party has been or will be duly executed and
delivered by one of its officers who is and will be duly authorized to execute and deliver such document on its behalf. The Certificateholders, the Trustees and the Liquidity Providers make no representation or warranty hereunder whatsoever. 

Section 6.04 No Segregation of Monies; No Interest. Any monies paid to or retained by the Subordination Agent pursuant to any
provision hereof and not then required to be distributed to any Trustee or any Liquidity Provider as provided in Articles II and III or deposited into one or more Trust Accounts need not be segregated in any manner except to the extent required
by such Articles II and III and by law, and the Subordination Agent shall not (except as otherwise provided in Section 2.02) be liable for any interest thereon; provided, however, that any payments received or applied
hereunder by the Subordination Agent shall be accounted for by the Subordination Agent so that any portion thereof paid or applied pursuant hereto shall be identifiable as to the source thereof. 

Section 6.05 Reliance; Agents; Advice of Counsel. The Subordination Agent shall not incur any liability to anyone in acting upon
any signature, instrument, notice, resolution, request, consent, order, certificate, report, opinion, bond or other document or paper believed by it to be genuine and believed by it to be signed by the proper party or parties. As to the Pool Balance
of any Trust as of 

  

					
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 any date, the Subordination Agent may for all purposes hereof rely on a certificate signed by any Responsible
Officer of the applicable Trustee, and such certificate shall constitute full protection to the Subordination Agent for any action taken or omitted to be taken by it in good faith in reliance thereon. As to any fact or matter relating to the
Liquidity Providers or the Trustees the manner of ascertainment of which is not specifically described herein, the Subordination Agent may for all purposes hereof rely on a certificate, signed by any Responsible Officer of the applicable Liquidity
Provider or Trustee, as the case may be, as to such fact or matter, and such certificate shall constitute full protection to the Subordination Agent for any action taken or omitted to be taken by it in good faith in reliance thereon. In the
administration of the trusts hereunder, the Subordination Agent may (a) execute any of the trusts or powers hereof and perform its powers and duties hereunder directly or through agents or attorneys and (b) consult with counsel,
accountants and other skilled Persons to be selected and retained by it. The Subordination Agent shall not be liable for anything done, suffered or omitted in good faith by it in accordance with the advice or opinion of any such counsel, accountants
or other skilled Persons acting within such counsel’s, accountants’ or Person’s area of competence (so long as the Subordination Agent shall have exercised reasonable care and judgment in selecting such Persons). 

Section 6.06 Capacity in Which Acting. The Subordination Agent acts hereunder solely as agent or trustee herein and not in its
individual capacity, except as otherwise expressly provided herein and in the Operative Agreements. 
 Section 6.07
Compensation. The Subordination Agent shall be entitled to such compensation, including reasonable expenses and disbursements, for all services rendered hereunder as Spirit and the Subordination Agent may agree from time to time in writing
and shall have a priority claim to the extent set forth in Article III on all monies collected hereunder for the payment of such compensation, to the extent that such compensation shall not be paid by others. The Subordination Agent agrees that
it shall have no right against any Trustee or any Liquidity Provider for any fee as compensation for its services as agent under this Agreement. The provisions of this Section 6.07 shall survive the termination of this Agreement. 

Section 6.08 May Become Certificateholder. The institution acting as Subordination Agent hereunder may become a
Certificateholder and have all rights and benefits of a Certificateholder to the same extent as if it were not the institution acting as the Subordination Agent. 

Section 6.09 Subordination Agent Required; Eligibility. There shall at all times be a Subordination Agent hereunder that is a
Citizen of the United States, a bank, trust company or other financial institution organized and doing business under the laws of the United States or any state thereof and eligible to act as a trustee under Section 310(a) of the Trust
Indenture Act of 1939, as amended, and that has a combined capital and surplus of at least $75,000,000 (or a combined capital and surplus in excess of $5,000,000 and the obligations of which, whether now in existence or hereafter incurred, are fully
and unconditionally guaranteed by a corporation organized under the laws of the United States or any State or territory thereof or the District of Columbia and having a combined capital and surplus of at least $75,000,000). If such bank, trust
company or other financial institution or such corporation publishes reports of condition at least annually, pursuant to law or to the requirements of federal, state, territorial or District of Columbia supervising or examining authority, then for
the purposes of this Section 6.09 the combined capital and surplus of such bank, trust company or other financial institution or such corporation shall be deemed to be its combined capital and surplus as set forth in its most recent report of
condition so published. 
 In case at any time the Subordination Agent shall cease to be eligible in accordance with the provisions of this
Section 6.09, the Subordination Agent shall resign immediately in the manner and with the effect specified in Section 7.01. 

  

					
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 Section 6.10 Money to Be Held in Trust. All Equipment Notes, monies and other
property deposited with or held by the Subordination Agent pursuant to this Agreement shall be held in trust for the benefit of the parties entitled to such Equipment Notes, monies and other property and the Subordination Agent, in its individual
capacity, hereby waives all rights of set-off and counterclaim with respect to all such property. 

Section 6.11 Notice of Substitution or Replacement of Airframe. If the Subordination Agent, in its capacity as a holder of
Equipment Notes issued under an Indenture, receives a notice of substitution of a Substitute Airframe (as defined in such Indenture) pursuant to Section 7.04(e) of such Indenture or a notice of delivery of a Replacement Airframe (as defined in
such Indenture) pursuant to Section 7.05(a) of such Indenture, the Subordination Agent shall promptly (i) provide a copy of such notice to each Trustee, each Liquidity Provider and each Rating Agency and (ii) on behalf of each Trustee
post such notice on DTC’s Internet bulletin board or make such other commercially reasonable efforts as the Subordination Agent may deem appropriate to make the contents of such notice available to all Certificateholders. 

ARTICLE VII 
 SUCCESSOR
SUBORDINATION AGENT 
 Section 7.01 Replacement of Subordination Agent; Appointment of Successor. (a) The Subordination
Agent or any successor thereto must resign if at any time it fails to comply with Section 6.09 and may resign at any time without cause by giving 60 days’ prior written notice to Spirit, the Trustees and the Liquidity Providers. The
Controlling Party or Spirit (only so long as no Indenture Event of Default has occurred or is continuing) may remove the Subordination Agent for cause by so notifying the Subordination Agent and may appoint a successor Subordination Agent. The
Controlling Party (or the party that would be the Controlling Party if an Indenture Event of Default had occurred) shall remove the Subordination Agent if: 

(1) the Subordination Agent fails to comply with Section 6.09; 

(2) the Subordination Agent is adjudged bankrupt or insolvent or files a bankruptcy petition; 

(3) a receiver of the Subordination Agent shall be appointed or any public officer shall take charge or control of the
Subordination Agent or its property or affairs for the purpose of rehabilitation, conservation or liquidation; or 
 (4) the
Subordination Agent otherwise becomes incapable of acting. 
 If the Subordination Agent resigns or is removed or if a vacancy exists in the
office of Subordination Agent for any reason (the Subordination Agent in such event being referred to herein as the retiring Subordination Agent), the Controlling Party (or the party that would be the Controlling Party if an Indenture Event of
Default had occurred) shall promptly appoint a successor Subordination Agent. If a successor Subordination Agent shall not have been appointed within 60 days after such notice of resignation or removal, the retiring Subordination Agent, one or more
of the Trustees or one or more of the Liquidity Providers may petition any court of competent jurisdiction for the appointment of a successor Subordination Agent to act until such time, if any, as a successor shall have been appointed as provided
above. 
 A successor Subordination Agent shall deliver (x) a written acceptance of its appointment as Subordination Agent hereunder to
the retiring Subordination Agent and (y) a written assumption of its obligations hereunder and under each Liquidity Facility to each party hereto, upon which the resignation 

  

					
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or removal of the retiring Subordination Agent shall become effective, and the successor Subordination Agent shall have all the rights, powers and duties of the Subordination Agent under this
Agreement. The successor Subordination Agent shall mail a notice of its succession to Spirit, the Liquidity Providers and the Trustees. The retiring Subordination Agent shall promptly transfer its rights under each of the Liquidity Facilities and
all of the property and all books and records, or true, complete and correct copies thereof, held by it as Subordination Agent to the successor Subordination Agent. 

If the Subordination Agent fails to comply with Section 6.09 (to the extent applicable), one or more of the Trustees or one or more of
the Liquidity Providers may petition a court of competent jurisdiction for the removal of the Subordination Agent and the appointment of a successor Subordination Agent. 

Notwithstanding the foregoing, no resignation or removal of the Subordination Agent shall be effective unless and until a successor has been
appointed. No appointment of a successor Subordination Agent shall be effective unless and until the Rating Agencies shall have delivered a Ratings Confirmation with respect to each Class of Certificates then rated by the Rating Agencies. 

(b) Any corporation, bank, trust company or other financial institution into which the Subordination Agent may be merged or converted or with
which it may be consolidated, or any corporation, bank, trust company or other financial institution resulting from any merger, conversion or consolidation to which the Subordination Agent shall be a party, or any corporation, bank, trust company or
other financial institution succeeding to all or substantially all of the corporate trust business of the Subordination Agent, shall be the successor of the Subordination Agent hereunder, provided that such corporation, bank, trust company or
other financial institution shall be otherwise qualified and eligible under Section 6.09, without the execution or filing of any paper or any further act on the part of any of the parties hereto, except that such corporation, bank, trust
company or other financial institution shall give prompt notice of such transaction to the Liquidity Providers and Spirit. 
 ARTICLE VIII

 SUPPLEMENTS AND AMENDMENTS 

Section 8.01 Amendments, Waivers, Etc. (a) This Agreement may not be supplemented, amended or modified without the
consent of each Trustee (acting, except in the case of any amendment pursuant to Section 3.05(e)(v) or any amendment contemplated by the last sentence of this Section 8.01(a), with the consent of holders of Outstanding Certificates of the
related Class evidencing Fractional Undivided Interests in the related Trust aggregating not less than a majority in interest in such Trust or as otherwise authorized pursuant to the relevant Trust Agreement (including, without limitation,
without the consent of the Certificateholders to the extent permitted thereby, Section 9.01 thereof)), the Subordination Agent and each Liquidity Provider; provided, however, that this Agreement may be supplemented, amended or
modified by a written agreement of Spirit and the Subordination Agent without the consent of any Trustee or any Liquidity Provider (i) in order to cure any ambiguity or omission or to correct any mistake, (ii) in order to make any other
provision in regard to matters or questions arising hereunder that will not materially adversely affect the interests of any Trustee or the holders of the related Class of Certificates or any Liquidity Provider (provided, that the
consent of any Trustee or Liquidity Provider shall be required only if such Trustee’s interests (or the interests of the holders of the related Class of Certificates) or such Liquidity Provider’s interests, respectively, will be
materially adversely affected) or (iii) if such supplement, amendment or modification is in accordance with Section 8.01(c) or 8.01(d); provided further, however, that, if such supplement, amendment or modification
(x) would directly or indirectly amend, modify or supersede, or otherwise conflict with, Section 2.02(b), 3.05(c), 3.05(e), 3.05(f), 3.05(m), 4.01(a)(ii) or 4.01(c), this proviso of Section 8.01(a), the last sentence of
Section 8.01(a) or Section 8.01(c), 8.01(d) or 9.06 (collectively, the “Spirit  

  

					
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 Provisions”), (y) would otherwise adversely affect the interests of any potential Replacement
Liquidity Provider or Replacement Depositary or of Spirit with respect to Spirit’s ability to replace any Liquidity Facility or the Depositary or with respect to Spirit’s payment obligations under any Operative Agreement or (z) is
made pursuant to the last sentence of this Section 8.01(a) or pursuant to Section 8.01(c) or pursuant to Section 8.01(d), then such supplement, amendment or modification shall not be effective without the additional written consent of
Spirit. Notwithstanding the foregoing, without the consent of each Certificateholder affected thereby and each Liquidity Provider, no supplement, amendment or modification of this Agreement may (i) reduce the percentage of the interest in any
Trust evidenced by the Certificates issued by such Trust necessary to consent to modify or amend any provision of this Agreement or to waive compliance therewith or (ii) except as provided in the last sentence of this Section 8.01(a) or
Section 8.01(c) or Section 8.01(d), modify Section 2.04, 3.02 or 3.03 hereof relating to the distribution of monies received by the Subordination Agent hereunder from the Equipment Notes or pursuant to the Liquidity Facilities.
Nothing contained in this Section 8.01(a) shall require the consent of a Trustee at any time following the payment of Final Distributions with respect to the related Class of Certificates. If the Replacement Liquidity Facility for any Liquidity
Facility is to be comprised of more than one instrument as contemplated by the definition of the term “Replacement Liquidity Facility”, then each party hereto agrees to amend this Agreement and the other Operative Agreements to incorporate
appropriate mechanics for multiple instruments for such Replacement Liquidity Facility for a single Trust (including without limitation clauses (i) and (ii) of Section 2.04(a) and clauses “first” through “fifth” of Section 3.02,
in each case, with respect to the Replacement Liquidity Provider for such Replacement Liquidity Facility. 
 (b)    In
the event that the Subordination Agent, as the registered holder of any Equipment Notes, receives a request for the giving of notice or its consent to any amendment, supplement, modification, approval, consent or waiver under such Equipment Notes,
the Indenture pursuant to which such Equipment Notes were issued, the related Participation Agreement or other related document, (i) if no Indenture Event of Default shall have occurred and be continuing with respect to such Indenture, the
Subordination Agent shall request directions with respect to each series of such Equipment Notes from the Trustee of the Trust which holds such Equipment Notes and shall vote or consent in accordance with the directions of such Trustee and
(ii) if any Indenture Event of Default shall have occurred and be continuing with respect to such Indenture, the Subordination Agent will exercise its voting rights as directed by the Controlling Party, subject to Sections 4.01 and 4.04.
Notwithstanding the foregoing, without the consent of each Liquidity Provider and each affected Certificateholder holding Certificates representing a Fractional Undivided Interest in the Equipment Notes under the applicable Indenture held by the
Subordination Agent, no such amendment, supplement, modification, approval, consent or waiver shall (i) reduce the principal amount of, Premium, if any, or interest on, any such Equipment Note under such Indenture; (ii) change the date on
which any principal amount of, Premium, if any, or interest on any such Equipment Note under such Indenture, is due or payable; (iii) create any Lien with respect to the Collateral subject to such Indenture prior to or pari passu with
the Lien thereon under such Indenture except such as are permitted by such Indenture; provided that, without the consent of each Certificateholder, no such amendment, supplement, modification, approval, consent or waiver shall modify
Section 3.03 or Section 9.02(a)(3) of such Indenture or deprive any Certificateholder of the benefit of the Lien of such Indenture on such Collateral, except as provided in connection with the exercise of remedies under Article IV of
such Indenture or as otherwise permitted by such Indenture; (iv) reduce the percentage of the outstanding principal amount of the Equipment Notes under such Indenture the consent of whose holders is required for any supplemental agreement, or
the consent of whose holders is required for any waiver of compliance with certain provisions of such Indenture or of certain defaults thereunder or their consequences provided for in such Indenture; or (v) make any change in Section 4.05
or Section 9.02 of such Indenture, except to provide that certain other provisions of such Indenture cannot be modified or waived without the consent of each holder of an Equipment Note under such Indenture affected thereby. 

  

					
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 (c) If (x) the Series A Equipment Notes or Series B Equipment Notes (or any series
of Additional Equipment Notes), with respect to all of the Aircraft for which Series A Equipment Notes or Series B Equipment Notes (or such series of Additional Equipment Notes) are at the time outstanding, are redeemed and new Equipment
Notes of corresponding series are to be issued with respect to any or all of the Aircraft under the applicable Indentures or (y) at any time following the payment in full of the Series A Equipment Notes or Series B Equipment Notes (or
any series of Additional Equipment Notes) with respect to all of the Aircraft for which Series A Equipment Notes or Series B Equipment Notes (or such series of Additional Equipment Notes) are at the time outstanding and new Equipment Notes
of corresponding series are to be issued with respect to any or all of the Aircraft under the applicable Indentures, in each case in accordance with the terms of Section 2.02 of each such Indenture and Section 4(a)(v) of the Note Purchase
Agreement, such series of new Equipment Notes in each case (the “Refinancing Equipment Notes”) shall be issued to a new pass through trust (a “Refinancing Trust”) that issues a class of pass through certificates
(the “Refinancing Certificates”) to certificateholders (each, a “Refinancing Certificateholder”) pursuant to a pass through trust agreement (a “Refinancing Trust Agreement”) with a trustee (a
“Refinancing Trustee”). A Refinancing Trust, a Refinancing Trustee and the Refinancing Certificates shall be subject to all of the provisions of this Agreement in the same manner as the Trust, the Trustee and the Certificates of the
Class corresponding to the series of the refinanced Equipment Notes, including, the subordination of the Refinancing Certificates to the extent provided herein to (A) in the case of any Refinancing Certificates issued in respect of
Class A Certificates, the Administration Expenses, the Liquidity Obligations and the Class AA Certificates, (B) in the case of any Refinancing Certificates issued in respect of Class B Certificates, the Administration Expenses,
the Liquidity Obligations, the Class AA Certificates and the Class A Certificates and (C) in the case of any Refinancing Certificates issued in respect of any Additional Certificates, the Administration Expenses, the Liquidity
Obligations, the Class AA Certificates, the Class A Certificates, the Class B Certificates and, if applicable, any other class of Additional Certificates that rank senior, in priority of payment of “Expected Distributions”
under this Agreement, to such Refinancing Certificates. Such issuance of Refinancing Equipment Notes and Refinancing Certificates and the amendment of this Agreement as provided below shall require Ratings Confirmation with respect to each
Class of Certificates then rated by the Rating Agencies and shall not materially adversely affect any of the Trustees in their individual capacities or any of the Liquidity Providers. This Agreement shall be amended by written agreement of
Spirit and the Subordination Agent to give effect to the issuance of any Refinancing Certificates subject to the following terms and conditions: 

(i) the Refinancing Trustee shall be added as a party to this Agreement; 

(ii) the definitions of “Certificate”, “Class”, “Class A Certificates”, “Class B
Certificates”, “Final Legal Distribution Date”, “Trust”, “Trust Agreement” and “Controlling Party” (and such other applicable definitions) shall be revised, as appropriate, to reflect such issuance (and
the subordination, as applicable, of the Refinancing Certificates and the Refinancing Equipment Notes); 
 (iii) the
Refinancing Certificates may have the benefit of credit support similar to the Liquidity Facilities or different therefrom and claims for fees, interest, expenses, reimbursement of advances and other obligations arising from such credit support
(A) in the case of any Refinancing Certificates issued in respect of the Class A Certificates, may rank pari passu with similar claims in respect of the Liquidity Facilities, (B) in the case of any Refinancing Certificates
issued in respect of any Class B Certificates, may rank pari passu with similar claims in respect of the Liquidity Facilities, and (C) in the case of any Refinancing Certificates issued in respect of any Additional Certificates,
shall be subordinated, at least, to the Administration Expenses, the Liquidity Obligations, the Class AA Certificates, the Class A Certificates and the Class B Certificates; provided that, (x) in each case, Ratings
Confirmation with respect to each Class of Certificates then rated by the Rating Agencies shall have been obtained and (y) (1) in the case of 

  

					
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clause (A) the prior written consent of the Class AA Liquidity Provider and the Class B Liquidity Provider shall have been obtained and (2) in the case of clause (B) the
prior written consent of the Class AA Liquidity Provider and the Class A Liquidity Provider shall have been obtained; 

(iv) the Refinancing Certificates cannot be issued to Spirit but may be issued to any of Spirit’s Affiliates so long as
such Affiliate shall have bankruptcy remote and special purpose provisions in its certificate of incorporation or other organizational documents and any subsequent transfer of such Refinancing Certificates from such Affiliate to any other Affiliate
of Spirit shall be similarly restricted; and 
 (v) the scheduled payment dates on the Refinancing Equipment Notes shall be
the Regular Distribution Dates. 
 The issuance of the Refinancing Certificates in compliance with all of the foregoing terms in clauses
(i) to (v) of this Section 8.01(c) shall be deemed to not materially adversely affect any of the Trustee’s rights and obligations and shall not require the consent of any of the Trustees or the holders of any Class of
Certificates. Each of the Liquidity Providers hereby agrees and confirms that it shall be deemed to consent to any issuance and amendment in accordance with this Section 8.01(c) (subject to the applicable Liquidity Provider’s consent right
in clause (y) to the proviso to Section 8.01(c)(iii)) and that any such issuance and amendment shall not affect any of its respective obligations under the applicable Liquidity Facility, provided that a condition to the issuance of
any Refinancing Certificates issued in respect of a Class of Certificates with a Liquidity Facility shall be the payment in full of all amounts owed to the Liquidity Provider under such Liquidity Facility and the termination of such Liquidity
Facility upon the issuance of such Refinancing Certificates. The Subordination Agent shall deliver to each Trustee and each Liquidity Provider (other than the Liquidity Provider of such terminated Liquidity Facility) a copy of the amendments made to
this Agreement and all opinions, certificates and other documents delivered in connection with the issuance of any Refinancing Certificates. 

(d) Pursuant to the terms of Section 2.02 of each applicable Indenture and Section 4(a)(v) of the Note Purchase Agreement, one or
more additional series of Equipment Notes (the “Additional Equipment Notes”), which shall be subordinated in right of payment to the Series AA Equipment Notes, the Series A Equipment Notes, the Series B Equipment
Notes and, if applicable, one or more series of Additional Equipment Notes under such Indenture, may be issued at any time and from time to time with respect to any or all of the Aircraft. If any series of Additional Equipment Notes are issued under
any Indenture, each such series of Additional Equipment Notes shall be issued to a new pass through trust (an “Additional Trust”) that issues a class of pass through certificates (the “Additional Certificates”) to
certificateholders (each, an “Additional Certificateholder”) pursuant to a pass through trust agreement (an “Additional Trust Agreement”) with a trustee (an “Additional Trustee”). In such case, this
Agreement, including without limitation Sections 2.04, 3.01 and 3.02 hereof, shall be amended by written agreement of Spirit and the Subordination Agent to provide for the subordination of such class of Additional Certificates to, and to provide for
distributions on the Additional Certificates after payment of, the Administration Expenses, the Liquidity Obligations, the Class AA Certificates, the Class A Certificates, the Class B Certificates and, if applicable, any other
Additional Certificates that rank senior, in priority of payment of “Expected Distributions” under this Agreement, to such Additional Certificates (subject to clause (iii) below). Such issuance, and the amendment of this Agreement as
provided below shall require Ratings Confirmation with respect to each Class of Certificates then rated by the Rating Agencies and shall not materially adversely affect any of the Trustees in their individual capacities or any of the Liquidity
Providers. This Agreement shall be amended by written agreement of Spirit and the Subordination Agent to give effect to the issuance of any Additional Certificates subject to the following terms and conditions: 

(i) the Additional Trustee shall be added as a party to this Agreement; 

  

					
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 (ii) the definitions of “Certificate”, “Class”,
“Equipment Notes”, “Final Legal Distribution Date”, “Trust”, “Trust Agreement”, and “Controlling Party” (and such other applicable definitions) shall be revised, as appropriate, to reflect the
issuance of the Additional Certificates (and the subordination thereof); 
 (iii) Section 3.02 may be revised, with
respect to any class of Additional Certificates, to provide for the distribution of “Adjusted Interest” for such class of Additional Certificates (calculated in a manner substantially similar to the calculation of Class B Adjusted
Interest) after the Class B Adjusted Interest (and, if applicable, after any “Adjusted Interest” for any Additional Certificates that rank senior, in priority of payment of “Expected Distributions” under this Agreement, to
such Additional Certificates) but before Expected Distributions on the Class AA Certificates; 
 (iv) the Additional
Certificates may have the benefit of credit support similar to the Liquidity Facilities or different therefrom, provided that (A) claims for fees, interest, expenses, reimbursement of advances and other obligations arising from such
credit support shall be subordinated, at least, to the Administration Expenses, the Liquidity Obligations, the Class AA Certificates, the Class A Certificates and the Class B Certificates and (B) Ratings Confirmation with respect
to each Class of Certificates then rated by the Rating Agencies shall have been obtained; 
 (v) the Additional
Certificates may be rated by the Rating Agencies; 
 (vi) the Additional Certificates cannot be issued to Spirit but may be
issued to any of Spirit’s Affiliates so long as such Affiliate shall have bankruptcy remote and special purpose provisions in its certificate of incorporation or other organizational documents and any subsequent transfer of such Additional
Certificates from such Affiliate to any other Affiliate of Spirit shall be similarly restricted; 
 (vii) the scheduled
payment dates on such series of Additional Equipment Notes shall fall on a Regular Distribution Date; and 
 (viii) for the
avoidance of doubt and without limitation of the foregoing, in the event that any Additional Certificates are issued prior to the Delivery Period Termination Date, the definitions of Deposit Agreement, Escrow and Paying Agent Agreement, Escrow
Agent, Escrow Receipts, Paying Agent, Paying Agent Account, Expected Distributions, Final Distributions and Pool Balance (and any other applicable definition) and the related provisions hereof may be appropriately revised to reflect any applicable
deposit and escrow arrangement in relation to such Additional Certificates. 
 The issuance of the Additional Certificates in compliance
with all of the foregoing terms in clauses (i) to (viii) of this Section 8.01(d) shall be deemed to not materially adversely affect any of the Trustee’s rights and obligations and shall not require the consent of any of the Trustees
or the holders of any Class of Certificates. Each of the Liquidity Providers hereby agrees and confirms that it shall be deemed to consent to any issuance and amendment in accordance with this Section 8.01(d) and that any such issuance and
amendment shall not affect any of its respective obligations under the applicable Liquidity Facility. The Subordination Agent shall deliver to each Trustee and each Liquidity Provider a copy of the amendments made to this Agreement and all opinions,
certificates and other documents delivered in connection with the issuance of any Additional Certificates. 
 Section 8.02
Subordination Agent Protected. If, in the reasonable opinion of the institution acting as the Subordination Agent hereunder, any document required to be executed by it pursuant to the terms of Section 8.01 adversely affects any right,
duty, immunity or indemnity with 

  

					
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respect to such institution under this Agreement or any Liquidity Facility, the Subordination Agent may in its discretion decline to execute such document. 

Section 8.03 Effect of Supplemental Agreements. Upon the execution of any amendment, consent or supplement hereto pursuant to the
provisions hereof, this Agreement shall be and shall be deemed to be modified and amended in accordance therewith and the respective rights, limitations of rights, obligations, duties and immunities under this Agreement of the parties hereto and
beneficiaries hereof shall thereafter be determined, exercised and enforced hereunder subject in all respects to such modifications and amendments, and all the terms and conditions of any such supplemental agreement shall be and be deemed to be part
of the terms and conditions of this Agreement for any and all purposes. In executing or accepting any supplemental agreement permitted by this Article VIII, the Subordination Agent shall be entitled to receive, and shall be fully protected in
relying upon, an opinion of counsel stating that the execution of such supplemental agreement is authorized or permitted by this Agreement. 

Section 8.04 Notice to Rating Agencies. Promptly following its receipt of each amendment, consent, modification, supplement or
waiver contemplated by this Article VIII, the Subordination Agent shall send a copy thereof to each Rating Agency. 
 ARTICLE IX

 MISCELLANEOUS 

Section 9.01 Termination of Intercreditor Agreement. Following payment of Final Distributions with respect to each
Class of Certificates and the payment in full of all Liquidity Obligations to the Liquidity Providers and provided that there shall then be no other amounts due to the Certificateholders, the Trustees, the Liquidity Providers and the
Subordination Agent hereunder or under the Trust Agreements, and that the commitment of the Liquidity Providers under the Liquidity Facilities shall have expired or been terminated, this Agreement shall and the trusts created hereby terminate and
this Agreement shall be of no further force or effect. Except as aforesaid or otherwise provided, this Agreement and the trusts created hereby shall continue in full force and effect in accordance with the terms hereof. 

Section 9.02 Intercreditor Agreement for Benefit of Trustees, Liquidity Providers and Subordination Agent. Subject to the
second sentence of Section 9.06 and the provisions of Section 4.04 and 8.01, nothing in this Agreement, whether express or implied, shall be construed to give to any Person other than the Trustees, the Liquidity Providers and the
Subordination Agent any legal or equitable right, remedy or claim under or in respect of this Agreement. 
 Section 9.03
Notices. Unless otherwise expressly specified or permitted by the terms hereof, all notices required or permitted under the terms and provisions of this Agreement shall be in English and in writing, and any such notice may be given by United
States mail, courier service or facsimile or any other customary means of communication, and any such notice shall be effective when delivered (or, if mailed, three Business Days after deposit, postage prepaid, in the first class United States mail
and, if delivered by facsimile, upon completion of transmission and confirmation by the sender (by a telephone call to a representative of the recipient or by machine confirmation) that such transmission was received), 

if to the Subordination Agent, to: 

Wilmington Trust, National Association 

1100 North Market Street 

Wilmington, DE 19890-1605 

  

					
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Attention: Corporate Trust Administration 
 Ref.: Spirit 2017-1 EETC 
 Telephone: (302) 636-6294 

Telecopy: (302) 636-4140 

if to any Trustee, to: 

Wilmington Trust, National Association 

1100 North Market Street 

Wilmington, DE 19890-1605 

Attention: Corporate Trust Administration 

Ref.: Spirit 2017-1 EETC 

Telephone: (302) 636-6294 

Telecopy: (302) 636-4140 

if to the Liquidity Provider, to: 

Commonwealth Bank of Australia, New York Branch 

Attention: Head of Structured Asset Finance 

599 Lexington Avenue 
 New York,
NY 10022 
 Telephone: (212) 848-9213 

Telecopy: (212) 336-7725 

cc: millej@cba.com.au ; erik.doebler@cba.com.au ; deborah.tan@cba.com.au 

With a copy to: 
 Commonwealth
Bank of Australia, New York Branch 
 Attention: Teresa Costa/Camille Marcigliano 

599 Lexington Avenue 
 New York,
NY 10022 
 Telephone: (212) 848-9301 

Telecopy: (212) 336-7725 

cc: NY_LoanAdmin@cba.com.au; pdm_saf@cba.com.au 

Any party, by notice to the other parties hereto, may designate additional or different addresses for subsequent notices or communications.
Whenever the words “notice” or “notify” or similar words are used herein, they mean the provision of formal notice as set forth in this Section 9.03. 

Section 9.04 Severability. To the extent permitted by applicable law, any provision of this Agreement which is prohibited or
unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such prohibition or unenforceability without invalidating the remaining provisions hereof, and any such prohibition or unenforceability in any
jurisdiction shall not invalidate or render unenforceable such provision in any other jurisdiction. 
 Section 9.05 No Oral
Modifications or Continuing Waivers. No terms or provisions of this Agreement may be changed, waived, discharged or terminated orally, but only by an instrument in writing signed by the party or other Person against whom enforcement of the
change, waiver, discharge or termination is sought and any other party or other Person whose consent is required pursuant to this Agreement and any waiver of the terms hereof shall be effective only in the specific instance and for the specific
purpose given. 

  

					
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 Section 9.06 Successors and Assigns. All covenants and agreements contained herein
shall bind and inure to the benefit of, and be enforceable by, each of the parties hereto and the successors and permitted assigns of each, all as herein provided. In addition, the Spirit Provisions shall inure to the benefit of Spirit and its
successors and permitted assigns, and (without limitation of the foregoing) Spirit is hereby constituted, and agreed to be, an express third party beneficiary of the Spirit Provisions. 

Section 9.07 Headings. The headings of the various Articles and Sections herein and in the Table of Contents hereto are for
convenience of reference only and shall not define or limit any of the terms or provisions hereof. 
 Section 9.08 Counterparts.
This Agreement may be executed in any number of counterparts (and each party shall not be required to execute the same counterpart). Each counterpart of this Agreement including a signature page or pages executed by each of the parties hereto
shall be an original counterpart of this Agreement, but all of such counterparts together constitute one instrument. 
 Section 9.09
Subordination. (a) As between the Liquidity Providers (and any additional liquidity providers in respect of any class of Refinancing Certificates or any Additional Certificates), on the one hand, and the Trustees (and any Refinancing
Trustees or any Additional Trustees) and the Certificateholders (and any Refinancing Certificateholders or any Additional Certificateholders), on the other hand, and as among the Trustees (and any Refinancing Trustees or any Additional Trustee) and
the related Certificateholders (and any Refinancing Certificateholders or any Additional Certificateholders) this Agreement shall be a subordination agreement for purposes of Section 510 of the Bankruptcy Code. 

(b) Notwithstanding the provisions of this Agreement, if prior to the payment in full to the Liquidity Providers of all Liquidity Obligations
then due and payable any party hereto shall have received any payment or distribution in respect of Equipment Notes or any other amount under the Indentures or other Operative Agreements which, had the subordination provisions of this Agreement been
properly applied to such payment, distribution or other amount, would not have been distributed to such Person, then such payment, distribution or other amount shall be received and held in trust by such Person and paid over or delivered to the
Subordination Agent for application as provided herein. 
 (c) If any Trustee, any Liquidity Provider or the Subordination Agent receives any
payment in respect of any obligations owing or amounts distributable hereunder (or, in the case of the Liquidity Providers, in respect of the Liquidity Obligations), which is subsequently invalidated, declared preferential, set aside and/or required
to be repaid to a trustee, receiver or other party, then, to the extent of such payment, such obligations or amounts (or, in the case of the Liquidity Providers, such Liquidity Obligations) intended to be satisfied shall be revived and continue in
full force and effect as if such payment had not been received. 
 (d) The Trustees (on behalf of themselves and the holders of
Certificates), the Liquidity Providers and the Subordination Agent expressly confirm and agree that the payment priorities and subordination specified in Articles II and III shall apply in all circumstances, notwithstanding (x) the fact
that the obligations owed to the Trustees are secured by certain assets and the Liquidity Obligations may not be so secured or (y) the occurrence of a Spirit Bankruptcy Event or any similar event or occurrence relating to any other Person (it
being expressly agreed that the payment priorities and subordination specified in Articles II and III shall apply whether or not a claim for post-petition or post-filing interest is allowed in the proceedings resulting from such Spirit
Bankruptcy Event or other event or occurrence). The Trustees expressly agree (on behalf of themselves and the holders of Certificates) not to assert priority over the holders of Liquidity Obligations (except as specifically set forth in
Section 3.02) due to their status as secured creditors in any bankruptcy, insolvency or other legal proceeding. 

  

					
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 (e) Each of the Trustees (on behalf of themselves and the holders of Certificates), the Liquidity
Providers and the Subordination Agent may take any of the following actions without impairing its rights under this Agreement: 

(i) obtain a Lien on any property to secure any amounts owing to it hereunder, including, in the case of the Liquidity
Providers, the Liquidity Obligations; 
 (ii) obtain the primary or secondary obligation of any other obligor with respect to
any amounts owing to it hereunder, including, in the case of the Liquidity Providers, any of the Liquidity Obligations; 

(iii) renew, extend, increase, alter or exchange any amounts owing to it hereunder, including, in the case of the Liquidity
Providers, any of the Liquidity Obligations, or release or compromise any obligation of any obligor with respect thereto; 

(iv) refrain from exercising any right or remedy, or delay in exercising any right or remedy, which it may have; or 

(v) take any other action which might discharge a subordinated party or a surety under applicable law; 

provided, however, that the taking of any such actions by any of the Trustees, the Liquidity Providers or the Subordination Agent shall not
prejudice the rights or adversely affect the obligations of any other party under this Agreement. 
 Section 9.10 Governing Law.
THIS AGREEMENT HAS BEEN DELIVERED IN THE STATE OF NEW YORK AND SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAW OF THE STATE OF NEW YORK, INCLUDING ALL MATTERS OF CONSTRUCTION, VALIDITY AND PERFORMANCE. 

Section 9.11 Submission to Jurisdiction; Waiver of Jury Trial; Waiver of Immunity. (a) Each of the parties hereto, to the
extent it may do so under applicable law, for purposes hereof and of all other Operative Agreements hereby (i) irrevocably submits itself to the non-exclusive jurisdiction of the courts of the State of
New York sitting in the City of New York and to the non-exclusive jurisdiction of the United States District Court for the Southern District of New York, for the purposes of any suit, action or other
proceeding arising out of this Agreement, the subject matter hereof or any of the transactions contemplated hereby brought by any party or parties hereto or thereto, or their successors or permitted assigns and (ii) waives, and agrees not to
assert, by way of motion, as a defense, or otherwise, in any such suit, action or proceeding, that the suit, action or proceeding is brought in an inconvenient forum, that the venue of the suit, action or proceeding is improper or that this
Agreement or the subject matter hereof or any of the transactions contemplated hereby may not be enforced in or by such courts. 
 (b) EACH
OF THE PARTIES HERETO HEREBY AGREES TO WAIVE ITS RESPECTIVE RIGHTS TO A JURY TRIAL OF ANY CLAIM OR CAUSE OF ACTION BASED UPON OR ARISING OUT OF THIS AGREEMENT OR ANY DEALINGS BETWEEN THEM RELATING TO THE SUBJECT MATTER OF THIS AGREEMENT AND THE
RELATIONSHIP THAT IS BEING ESTABLISHED, including, without limitation, contract claims, tort claims, breach of duty claims and all other common law and statutory claims. Each of the parties warrants and represents that it has reviewed this waiver
with its legal counsel, and that it knowingly and voluntarily waives its jury trial rights following consultation with such legal counsel. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THIS WAIVER IS IRREVOCABLE AND CANNOT BE MODIFIED EITHER ORALLY
OR IN WRITING, AND THIS WAIVER SHALL APPLY TO ANY 

  

					
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SUBSEQUENT AMENDMENTS, RENEWALS, SUPPLEMENTS OR MODIFICATIONS TO THIS AGREEMENT. 

(c) To the extent that any Liquidity Provider or any of its properties has or may hereafter acquire any right of immunity, whether
characterized as sovereign immunity or otherwise, and whether under the United States Foreign Sovereign Immunities Act of 1976 (or any successor legislation) or otherwise, from any legal proceedings, whether in the United States or elsewhere, to
enforce or collect upon this Agreement, including, without limitation, immunity from suit or service of process, immunity from jurisdiction or judgment of any court or tribunal or execution of a judgment, or immunity of any of its property from
attachment prior to any entry of judgment, or from attachment in aid of execution upon a judgment, each of the Class AA Liquidity Provider, the Class A Liquidity Provider and the Class B Liquidity Provider, hereby irrevocably and
expressly waives any such immunity, and agrees not to assert any such right or claim in any such proceeding, whether in the United States or elsewhere. 

Section 9.12 Non-Petition. Each Liquidity Provider covenants that until one year and one
day after the Equipment Notes have been paid in full, it shall not acquiesce, petition or otherwise invoke or cause or join in invoking or causing any Trust or any other Person to invoke the process of any governmental authority for the purpose of
commencing or sustaining a case (whether voluntary or not) against such Trust under any bankruptcy, insolvency or similar law or appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or other similar official of such Trust or
any substantial part of its property or ordering the winding up or liquidation of the affairs of such Trust. 
 [Remainder of Page
Intentionally Left Blank] 

  

					
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 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed by their
respective officers thereunto duly authorized, as of the date first above written. 
  

			
	 WILMINGTON TRUST, NATIONAL ASSOCIATION,

as Trustee for the Class AA Trust, Class A Trust and Class B Trust

 
			
		
	By:	 	 /s/ Jacqueline Solone

		 	Name: Jacqueline Solone
		 	Title: Vice President

 Signature Page 

  

					
		  		  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 
			
	 COMMONWEALTH BANK OF AUSTRALIA, 

NEW YORK BRANCH,

	as Class AA Liquidity Provider, Class A Liquidity Provider and Class B Liquidity Provider

 
			
		
	By:	 	 /s/ James M. Miller

		 	 Name:    James M. Miller

		 	 Title:      Head of Americas Origination

               Structured Asset
Finance

 Signature Page 

  

					
		  		  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

 
			
	 WILMINGTON TRUST, NATIONAL ASSOCIATION,

as Subordination Agent

		
	By:	 	 /s/ Jacqueline Solone

		 	Name: Jacqueline Solone
		 	Title: Vice President

 Signature Page 

  

					
		  		  	 Intercreditor Agreement (2017-1)

(Spirit 2017-1 EETC)

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