Document:

Note Purchase Agreement

 Exhibit 4.11 

EXECUTION VERSION 
  

 
  

NOTE PURCHASE AGREEMENT 
 Dated as
of August 11, 2015 
 among 

SPIRIT AIRLINES, INC., 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Pass Through Trustee under each of the Pass Through Trust Agreements 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Subordination Agent 
 WILMINGTON
TRUST COMPANY, 
 as Escrow Agent 

and 
 WILMINGTON TRUST, NATIONAL
ASSOCIATION, 
 as Paying Agent 
  

 
  

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

 Table of Contents 

 

							
	 	 	 	  	Page	 
			
	Section 1.	 	Financing of Aircraft	  	 	3	  
			
	Section 2.	 	Conditions Precedent	  	 	7	  
			
	Section 3.	 	Representations and Warranties	  	 	8	  
			
	Section 4.	 	Covenants	  	 	12	  
			
	Section 5.	 	Depositary Downgrade and Replacement of Depositary	  	 	16	  
			
	Section 6.	 	Notices	  	 	17	  
			
	Section 7.	 	Expenses	  	 	17	  
			
	Section 8.	 	Further Assurances	  	 	18	  
			
	Section 9.	 	Miscellaneous	  	 	19	  
			
	Section 10.	 	Governing Law	  	 	20	  
			
	Section 11.	 	Submission to Jurisdiction	  	 	20	  

  

			
	Schedule I	 	Eligible Aircraft and Scheduled Delivery Months
	Schedule II	 	Trust Supplements
	Schedule III	 	Required Terms
		
	Annex A	 	Definitions
		
	Exhibit A	 	Form of Funding Notice
	Exhibit B	 	Form of Participation Agreement
	Exhibit C	 	Form of Indenture and Security Agreement

  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 NOTE PURCHASE AGREEMENT 

This NOTE PURCHASE AGREEMENT (this “Note Purchase Agreement”), dated as of August 11, 2015, is made by and among
(i) SPIRIT AIRLINES, INC., a Delaware corporation (together with its successors and permitted assigns, the “Company”), (ii) WILMINGTON TRUST, NATIONAL ASSOCIATION (“WTNA”), a national banking
association, not in its individual capacity except as otherwise expressly provided herein, but solely as trustee (in such capacity, together with any successor in interest and any successor or other trustee appointed as provided in the applicable
Pass Through Trust Agreement (as defined below), the “Pass Through Trustee”) under each of the two separate Pass Through Trust Agreements (as defined below), (iii) WILMINGTON TRUST, NATIONAL ASSOCIATION, a national
banking association, as subordination agent and trustee (in such capacity together with its successors in such capacity, the “Subordination Agent”) under the Intercreditor Agreement (as defined below), (iv) WILMINGTON
TRUST COMPANY, a Delaware trust company, as Escrow Agent (in such capacity together with its successors in such capacity, the “Escrow Agent”), under each of the Escrow and Paying Agent Agreements (as defined below), and
(v) WILMINGTON TRUST, NATIONAL ASSOCIATION, a national banking association, as Paying Agent (in such capacity together with its successors in such capacity, the “Paying Agent”) under each of the Escrow and Paying Agent
Agreements. 
 W I T N E S S E T H: 

WHEREAS, capitalized terms used but not defined herein shall have the meanings ascribed to such terms in Annex A hereto; 

WHEREAS, the Company has obtained commitments from the Manufacturer pursuant to the Aircraft Purchase Agreement for the delivery scheduled on
or prior to December 31, 2016 of the 15 new Airbus aircraft listed in Schedule I hereto (any such aircraft, together with any aircraft substituted therefor in accordance with the Aircraft Purchase Agreement prior to the delivery thereof,
an “Eligible Aircraft” and, collectively, the “Eligible Aircraft”); 
 WHEREAS, the Company wishes to
finance pursuant to this Note Purchase Agreement the purchase of the 15 Eligible Aircraft (each of the 15 Eligible Aircraft to be financed hereunder (or any Substitute Aircraft financed in lieu of such Eligible Aircraft pursuant to Section 1(h)
hereof), an “Aircraft” and, collectively, the “Aircraft” and, the first seven such Aircraft scheduled for delivery between October 2015 and April 2016, each an “Early Delivery Aircraft” and,
collectively, the “Early Delivery Aircraft”); 
 WHEREAS, pursuant to the Basic Pass Through Trust Agreement and each of
the Trust Supplements described in Schedule II hereto, and concurrently with the execution and delivery of this Note Purchase Agreement, two separate grantor trusts (the “Class A Pass Through Trust” and the “Class B
Pass Through Trust”, respectively, and collectively, the “Pass Through Trusts” and, individually, each a “Pass Through Trust”) have been created to facilitate certain of the transactions contemplated
hereby, including, without limitation, the issuance and 
  
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sale of pass through certificates pursuant thereto (together with any other pass through certificates for which such pass through certificates may be exchanged, collectively, the
“Certificates”) to provide financing, among other things, for the purchase by such Pass Through Trusts of the related series of Equipment Notes to be issued in respect of, and secured by a security interest in, each of the Aircraft;

 WHEREAS, the Company has entered into the Underwriting Agreement, dated July 28, 2015 (as amended, supplemented or otherwise
modified from time to time in accordance with its terms, the “Underwriting Agreement”) with the Underwriters named therein (the “Underwriters”), which provides that the Company will cause the Pass Through Trustee
under the Class A Pass Through Trust (the “Class A Pass Through Trustee”) and the Pass Through Trustee under the Class B Pass Through Trust (the “Class B Pass Through Trustee”) to issue and sell the
Class A Certificates and the Class B Certificates, respectively, to the Underwriters on the Issuance Date; 
 WHEREAS, concurrently
with the execution and delivery of this Note Purchase Agreement, (i) the Escrow Agent and the Depositary have entered into that certain Deposit Agreement (Class A), dated as of the Issuance Date, relating to the Class A Pass Through
Trust and that certain Deposit Agreement (Class B), dated as of the Issuance Date, relating to the Class B Pass Through Trust (each such agreement, as amended, supplemented or otherwise modified from time to time in accordance with its terms, a
“Deposit Agreement” and, collectively, the “Deposit Agreements”) whereby the Escrow Agent has agreed to direct the Underwriters to make certain deposits referred to therein on the Issuance Date (the “Initial
Deposits”) and to permit the applicable Pass Through Trustees to make additional deposits from time to time thereafter (the Initial Deposits together with such additional deposits are collectively referred to as the
“Deposits”), and (ii) the Underwriters, the applicable Pass Through Trustees, the Paying Agent and the Escrow Agent have entered into that certain Escrow and Paying Agent Agreement (Class A), dated as of the Issuance
Date, relating to the Class A Pass Through Trust and that certain Escrow and Paying Agent Agreement (Class B), dated as of the Issuance Date, relating to the Class B Pass Through Trust (each such agreement, as amended, supplemented or otherwise
modified from time to time in accordance with its terms, an “Escrow and Paying Agent Agreement” and, collectively, the “Escrow and Paying Agent Agreements”), whereby, among other things, (a) the
Underwriters have agreed to deliver an amount equal to the amount of the Initial Deposits to the Depositary on behalf of the applicable Escrow Agent and (b) the applicable Escrow Agent, upon the Depositary receiving such Initial
Deposits, has agreed to deliver escrow receipts to be affixed to each Certificate; 
 WHEREAS, subject to the terms and conditions of this
Note Purchase Agreement, each Pass Through Trustee and each of the Subordination Agent, WTNA and the Company will enter into the applicable Financing Agreements to which it is intended to be a party relating to each Aircraft; 

  
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 WHEREAS, upon the financing of each Aircraft, each Pass Through Trustee will fund its purchase of
the related series of Equipment Notes in respect of such Aircraft with the proceeds of one or more Deposits withdrawn by the applicable Escrow Agent under the related Deposit Agreement; and 

WHEREAS, concurrently with the execution and delivery of this Note Purchase Agreement, (i) the Class A Liquidity Provider has
entered into the Class A Liquidity Facility for the benefit of the holders of the Class A Certificates and the Class B Liquidity Provider has entered into the Class B Liquidity Facility for the benefit of the holders of the Class B
Certificates, in each case with the Subordination Agent, as agent for the Pass Through Trustee on behalf of the applicable Pass Through Trust and (ii) the Pass Through Trustees, the Liquidity Providers and the Subordination Agent have
entered into the Intercreditor Agreement. 
 NOW, THEREFORE, in consideration of the foregoing premises and the mutual agreements herein
contained and other good and valuable consideration, the receipt and adequacy of which are hereby acknowledged, the parties hereto agree as follows: 

SECTION 1. Financing of Aircraft. 

(a) Agreement to Finance. The Company confirms that it has entered into the Aircraft Purchase Agreement with the
Manufacturer pursuant to which the Company has agreed to purchase, and the Manufacturer has agreed to deliver, the Eligible Aircraft in the months specified in Schedule I hereto (which months are subject to change as provided in the Aircraft
Purchase Agreement), all on and subject to the terms and conditions specified in the Aircraft Purchase Agreement. The Company agrees to finance the Aircraft in the manner provided herein, all on and subject to the terms and conditions hereof and of
the applicable Financing Agreements, by the date referred to in clause (a) of the definition of Delivery Period Termination Date. 

(b) Funding Notice. In furtherance of the foregoing, and in respect of each Aircraft, the Company agrees to give the
parties hereto, the Depositary and each of the Rating Agencies not less than one Business Day’s prior notice (including a substitute Funding Notice under Section 1(f) or a Funding Notice in respect of a Substitute Aircraft under
Section 1(h)), substantially in the form of Exhibit A hereto (each, a “Funding Notice”), of the date scheduled for the financing as contemplated hereby in respect of such Aircraft (the “Funding
Date”), which notice shall: 
 (i) specify the Funding Date of such Aircraft (which shall be a Business Day on or
prior to the Cut-Off Date); 

  
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 (ii) instruct each Pass Through Trustee to enter into the Participation Agreement
included in the Financing Agreements with respect to such Aircraft in such form and at such a time on or before the Funding Date as specified in such Funding Notice and to perform its obligations thereunder; 

(iii) instruct each Pass Through Trustee to deliver to the applicable Escrow Agent the “Withdrawal Certificate” and
the related “Applicable Notice of Purchase Withdrawal” contemplated by Section 1.02(c) of the applicable Escrow and Paying Agent Agreement with respect to the Equipment Notes to be issued to such Pass Through Trustee in
connection with the financing of such Aircraft; and 
 (iv) specify the aggregate principal amount of each series of
Equipment Notes to be issued, and purchased by each Pass Through Trustee, in connection with the financing of such Aircraft scheduled to be consummated on such Funding Date (which aggregate principal amount shall be as specified in, or as adjusted
in accordance with, as the case may be, the Required Terms, including, if such Aircraft is an Early Delivery Aircraft, to give effect to the Amortization Withdrawal, if any, for such Early Delivery Aircraft). 

(c) [Reserved.] 

(d) Entering into Financing Agreements. Upon receipt of a Funding Notice, each Pass Through Trustee shall, and shall
cause the Subordination Agent to, enter into and perform their obligations under each applicable Participation Agreement and follow the other instructions specified in such Funding Notice; provided that, with respect to each Aircraft to be
financed: 
 (i) subject to clauses (ii)-(iv) immediately below, the applicable Participation Agreement and the
applicable Indenture, as executed and delivered, shall be substantially in the respective forms thereof annexed hereto and (x) the amortization schedule for each Equipment Note issued under such Indenture shall be as set forth in the
relevant table attached as part of Schedule III hereto and (y) the relevant Financing Agreements shall provide for the purchase by the applicable Pass Through Trustee of Equipment Notes of the related series in the principal
amounts specified in Schedule III hereto; 
 (ii) subject to clauses (iii) and (iv) immediately below,
if (x) the Company shall have obtained from each Rating Agency a Rating Agency Confirmation with respect to each Class of Certificates then rated by such Rating Agency in connection with any material modifications of the applicable
Financing 

  
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Agreements from the forms of Financing Agreements annexed hereto (including the form of Equipment Note included in the form Indenture annexed hereto) and delivered such Rating Agency Confirmation
to each Pass Through Trustee on or before the applicable Funding Date or (y) such Rating Agency Confirmation shall have been obtained with respect to material modifications of the Financing Agreements relating to another or any Aircraft
or with respect to material modifications of the forms of the Financing Agreements annexed hereto and the applicable Financing Agreements incorporate such material modifications without additional material modifications, the applicable Financing
Agreements, as executed and delivered, may incorporate such material modifications, if any; 
 (iii) the applicable Financing
Agreements, as executed and delivered, shall comply with the Required Terms; and 
 (iv) the Company is not required to
obtain or deliver a Rating Agency Confirmation or a certification pursuant to Section 2(b)(ii) of this Note Purchase Agreement in connection with any modifications to the applicable Financing Agreements that are not material or that are
expressly permitted by the Required Terms or by Section 5(e) of this Note Purchase Agreement. 
 Notwithstanding the foregoing,
(x) the Financing Agreements with respect to any Aircraft and the forms of Financing Agreements annexed hereto may be modified to the extent required for the issuance, redemption and issuance or payment and issuance, as applicable, of
new Series B Equipment Notes or one or more series of Additional Series Equipment Notes or one or more series of new Additional Series Equipment Notes, as the case may be, pursuant to Section 4(a)(v) of this Note Purchase Agreement,
subject to the terms of such Section and of Section 8.01(c) or 8.01(d) of the Intercreditor Agreement, whichever may be applicable, and the Company shall pay the reasonable costs and expenses of the Rating Agencies in connection
with obtaining any Rating Agency Confirmation in connection therewith, and (y) the Company is not required to deliver a certification pursuant to Section 2(b)(ii) of this Note Purchase Agreement in connection with any
modifications of the Financing Agreements contemplated by this sentence. With respect to each Aircraft, the Company shall cause WTNA (or such other Person that meets the eligibility requirements to act as loan trustee under the applicable Indenture)
to execute as the applicable Loan Trustee the Financing Agreements relating to such Aircraft to which such Loan Trustee is intended to be a party, and shall concurrently therewith execute such Financing Agreements to which the Company is intended to
be a party and perform its respective obligations thereunder. Upon the request of one or more Rating Agencies, the Company shall deliver or cause to be delivered to such Rating Agency or Rating Agencies a true and complete copy of each Financing
Agreement relating to the financing of each Aircraft, together with a true and complete set of the closing documentation (including legal opinions) delivered to the applicable Loan Trustee, the Subordination Agent and each Pass Through Trustee under
the applicable Participation Agreement. 

  
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 (e) Registration of Equipment Notes. The Company agrees that all Equipment
Notes issued pursuant to any Indenture to which an Aircraft shall have been subjected shall initially be registered in the name of the Subordination Agent on behalf of the applicable Pass Through Trustee (or, in the case of any Additional Series
Equipment Notes, on behalf of the Additional Series Pass Through Trustee with respect to the corresponding Additional Series Pass Through Certificates). 

(f) Postponement of Delivery and Funding. If, on the Funding Date for any Aircraft, the financing of such Aircraft as
contemplated hereunder shall not be consummated for whatever reason, the Company shall give the parties hereto and the Depositary prompt notice thereof. Promptly after the Company has identified (x) a new Funding Date on which such
Aircraft may be subjected to the financing as provided herein or (y) a Substitute Aircraft that may be subjected to the financing as provided herein in lieu of such Aircraft and the Funding Date for such Substitute Aircraft (in each
case, all on and subject to the terms and conditions hereof and of the applicable Financing Agreements), the Company shall give the parties hereto and the Depositary a substitute Funding Notice specifying such new Funding Date for such Aircraft or
the Funding Date for such Substitute Aircraft. Upon receipt of any such substitute Funding Notice, each Pass Through Trustee shall comply with its obligations under Section 7.01 of the applicable Trust Supplement and thereafter the
financing of such Aircraft, as specified in such substitute Funding Notice, shall take place on the re-scheduled Funding Date therefor (all on and subject to the terms and conditions hereof and of the applicable Financing Agreements) unless further
postponed as provided herein. 
 (g) Delivery of Aircraft from Manufacturer. Anything in this Section 1 or
elsewhere to the contrary notwithstanding, the Company shall have the right to accept delivery of any Aircraft from the Manufacturer under the Aircraft Purchase Agreement prior to the Funding Date for such Aircraft by using the Company’s own
funds and to specify a Funding Date for such Aircraft that, in the case of any Aircraft that is not a Substitute Aircraft, shall be no later than 90 days after the delivery of such Aircraft to the Company by the Manufacturer under the Aircraft
Purchase Agreement and, in each case, shall be no later than the Cut-Off Date and otherwise complying with the provisions of Section 1(b) hereof. 

(h) Substitute Aircraft. If the date of delivery from the Manufacturer for any Eligible Aircraft is delayed more than 30
days beyond the last day of the month set forth opposite such Eligible Aircraft under the heading “Scheduled Delivery Month” in Schedule I hereto, the Company may substitute therefor an aircraft not included in the Eligible
Aircraft, but meeting the following conditions (each, a “Substitute Aircraft” and, collectively, the “Substitute Aircraft”): (i) a Substitute Aircraft must be of the same model or an improved model as
the Eligible Aircraft being replaced and (ii) the Company shall obtain a Rating Agency Confirmation with respect to each Class of Certificates then 

  
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rated by the Rating Agencies in connection with the replacement of any Eligible Aircraft by a Substitute Aircraft. Upon the satisfaction of the conditions set forth above with respect to a
Substitute Aircraft, the Eligible Aircraft it replaced shall cease to be subject to this Note Purchase Agreement and all rights and obligations of the parties hereto concerning such Eligible Aircraft shall cease, and such Substitute Aircraft shall
become, and thereafter be, subject to the terms and conditions of this Note Purchase Agreement to the same extent as such Eligible Aircraft. 

(i) No Liability for Failure to Purchase Equipment Notes. The Company shall have no liability for the failure of any
Pass Through Trustee to purchase Equipment Notes with respect to any Aircraft. 
 (j) Withdrawals Limited to Available
Deposits. Anything herein to the contrary notwithstanding, the Company shall not have the right, and shall not be entitled, at any time to request the issuance of Series A Equipment Notes or Series B Equipment Notes in respect of the Aircraft to
the Class A Pass Through Trustee or the Class B Pass Through Trustee, respectively, in an aggregate principal amount in excess of the amount of the Deposits then available for withdrawal by the Escrow Agent under and in accordance with the
provisions of the applicable Deposit Agreement. 
 SECTION 2. Conditions Precedent. The obligation of each of the Pass Through
Trustees to enter into, and to cause the Subordination Agent to enter into, a Participation Agreement relating to any Aircraft as directed pursuant to a Funding Notice and to perform its obligations thereunder is subject to satisfaction of the
following conditions: 
 (a) no Triggering Event shall have occurred; and 

(b) subject to Section 1(d)(iv) and the last paragraph of Section 1(d), the Company shall have
delivered a certificate to each Pass Through Trustee and each Liquidity Provider stating that (i) such Participation Agreement and the other Financing Agreements to be entered into pursuant to such Participation Agreement comply with the
Required Terms and (ii) if any substantive modifications of such Financing Agreements from the forms of Financing Agreements attached to this Note Purchase Agreement have been made, (x) such substantive modifications do not
materially and adversely affect the holders of the Class A Certificates, the holders of the Class B Certificates or any Liquidity Provider and (y) if required pursuant to Section 1(d)(ii), the Company has obtained from
each Rating Agency a Rating Agency Confirmation with respect to each Class of Certificates then rated by such Rating Agency with respect to such modifications, and such certification shall be true and correct. 

  
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 Anything herein to the contrary notwithstanding, the obligation of each Pass Through Trustee to purchase
Equipment Notes hereunder shall terminate on the Cut-Off Date. 
 SECTION 3. Representations and Warranties. 

(a) Representations and Warranties of the Company. The Company represents and warrants that: 

(i) Due Incorporation; Good Standing; Corporate Power; Etc. The Company is duly incorporated, validly existing and in
good standing under the laws of the State of Delaware and is a Citizen of the United States and has the full corporate power, authority and legal right under the laws of the State of Delaware to execute and deliver this Note Purchase Agreement and
each Financing Agreement to which it will be a party and to carry out the obligations of the Company under this Note Purchase Agreement and each Financing Agreement to which it will be a party; 

(ii) Authorization; No Conflicts. The execution and delivery by the Company of this Note Purchase Agreement and the
performance by the Company of its obligations under this Note Purchase Agreement have been duly authorized by the Company and will not violate its certificate of incorporation or by-laws or the provisions of any indenture, mortgage, contract or
other agreement to which it is a party or by which it is bound; and 
 (iii) Enforceability. This Note Purchase
Agreement constitutes the legal, valid and binding obligation of the Company, enforceable against it in accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting the rights of creditors generally and by general principles of equity, whether considered in a proceeding at law or in equity. 

(b) Representations and Warranties of WTNA. WTNA represents and warrants that: 

(i) Due Incorporation; Good Standing; Corporate Power; Etc. WTNA is a national banking association duly organized and
validly existing in good standing under the laws of the United States and is a Citizen of the United States and has the full corporate power, authority and legal right under the laws of the United States and of the state of the United States in
which it is located and pertaining to its 

  
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banking, trust and fiduciary powers to execute and deliver this Note Purchase Agreement and each Financing Agreement to which it will be a party and to carry out the obligations of WTNA, in its
capacity as Subordination Agent, Pass Through Trustee or Paying Agent, as the case may be, under this Note Purchase Agreement and each Financing Agreement to which it will be a party; 

(ii) Due Authorization; No Conflicts. The execution and delivery by WTNA, in its capacity as Subordination Agent, Pass
Through Trustee or Paying Agent, as the case may be, of this Note Purchase Agreement and the performance by WTNA, in its capacity as Subordination Agent, Pass Through Trustee or Paying Agent, as the case may be, of its obligations under this Note
Purchase Agreement have been duly authorized by WTNA, in its capacity as Subordination Agent, Pass Through Trustee or Paying Agent, as the case may be, and will not violate its articles of association or by-laws or the provisions of any indenture,
mortgage, contract or other agreement to which it is a party or by which it is bound; and 
 (iii) Enforceability.
This Note Purchase Agreement constitutes the legal, valid and binding obligations of WTNA, in its capacity as Subordination Agent, Pass Through Trustee or Paying Agent, as the case may be, enforceable against it in accordance with its terms, except
as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally and by general principles of equity, whether considered in a proceeding at law or in equity. 

(c) Representations and Warranties of the Pass Through Trustee. Each Pass Through Trustee hereby confirms to each of the
other parties hereto that its representations and warranties set forth in Section 7.15 of the Basic Pass Through Trust Agreement and Section 7.04 of the applicable Trust Supplement are true and correct as of the date hereof.

 (d) Representations and Warranties of the Subordination Agent. The Subordination Agent represents and warrants
that: 
 (i) Due Incorporation; Good Standing; Corporate Power; Etc. The Subordination Agent is a national banking
association duly organized and validly existing in good standing under the laws of the United States, and has the full corporate power, authority and legal right under the laws of the United States and of the state of the United States in which it
is located and pertaining to its banking, trust and fiduciary powers to execute and deliver this Note Purchase Agreement and each Financing Agreement to which it is or will be a party and to perform its obligations under this Note Purchase Agreement
and each Financing Agreement to which it is or will be a party; 

  
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 (ii) Due Authorization; Enforceability. This Note Purchase Agreement has
been duly authorized, executed and delivered by the Subordination Agent; this Note Purchase Agreement constitutes the legal, valid and binding obligations of the Subordination Agent enforceable against it in accordance with its terms, except as the
same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally and by general principles of equity, whether considered in a proceeding at law or in equity; 

(iii) Compliance with Laws; No Conflicts. None of the execution, delivery and performance by the Subordination Agent of
this Note Purchase Agreement contravenes any law, rule or regulation of the state of the United States in which it is located or any United States governmental authority or agency regulating the Subordination Agent’s banking, trust or fiduciary
powers or any judgment or order applicable to or binding on the Subordination Agent or contravenes the Subordination Agent’s articles of association or by-laws or results in any breach of, or constitute a default under, any agreement or
instrument to which the Subordination Agent is a party or by which it or any of its properties may be bound; 
 (iv) No
Governmental Consents. Neither the execution and delivery by the Subordination Agent of this Note Purchase Agreement nor the consummation by the Subordination Agent of any of the transactions contemplated hereby requires the consent or approval
of, the giving of notice to, the registration with, or the taking of any other action with respect to, any governmental authority or agency of the state of the United States in which it is located or any federal governmental authority or agency
regulating the Subordination Agent’s banking, trust or fiduciary powers; 
 (v) Certain Tax Matters. There are no
Taxes payable by the Subordination Agent imposed by any state of the United States in which it is located or any political subdivision or taxing authority thereof in connection with the execution, delivery and performance by the Subordination Agent
of this Note Purchase Agreement or the Intercreditor Agreement (other than franchise or other taxes based on or measured by any fees or compensation received by the Subordination Agent for services rendered in connection with the transactions
contemplated by the Intercreditor Agreement or any of the Liquidity Facilities), and there are no Taxes payable by the Subordination Agent imposed by any state of the United States in which it is located or any political subdivision thereof in
connection with the acquisition, possession or ownership by the Subordination Agent of any of the 

  
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Equipment Notes (other than franchise or other taxes based on or measured by any fees or compensation received by the Subordination Agent for services rendered in connection with the transactions
contemplated by the Intercreditor Agreement or any of the Liquidity Facilities); and 
 (vi) No Proceedings. There are
no pending or threatened actions or proceedings against the Subordination Agent before any court or administrative agency which individually or in the aggregate, if determined adversely to it, would materially adversely affect the ability of the
Subordination Agent to perform its obligations under this Note Purchase Agreement. 
 (e) Representations and Warranties
of the Escrow Agent. The Escrow Agent represents and warrants that: 
 (i) Due Incorporation; Good Standing; Corporate
Power; Etc. The Escrow Agent is a Delaware trust company duly incorporated, validly existing and in good standing under the laws of the State of Delaware and has the full corporate power, authority and legal right under the laws of the State of
Delaware pertaining to its trust and fiduciary powers to execute and deliver this Note Purchase Agreement, each Deposit Agreement and each Escrow and Paying Agent Agreement (collectively, the “Escrow Agent Agreements”) and to carry
out the obligations of the Escrow Agent under each of the Escrow Agent Agreements; 
 (ii) Due Authorization; No
Conflicts. The execution and delivery by the Escrow Agent of each of the Escrow Agent Agreements and the performance by the Escrow Agent of its obligations hereunder and thereunder have been duly authorized by the Escrow Agent and will not
violate its charter or by-laws or the provisions of any indenture, mortgage, contract or other agreement to which it is a party or by which it is bound; and 

(iii) Enforceability. Each of the Escrow Agent Agreements constitutes the legal, valid and binding obligations of the
Escrow Agent enforceable against it in accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally and by general
principles of equity, whether considered in a proceeding at law or in equity. 

  
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 (f) Representations and Warranties of the Paying Agent. The Paying Agent
represents and warrants that: 
 (i) Due Incorporation; Good Standing; Corporate Power; Etc. The Paying Agent is a
national banking association duly organized and validly existing in good standing under the laws of the United States, and has the full corporate power, authority and legal right under the laws of the United States and of the state in which it is
located and pertaining to its banking, trust and fiduciary powers to execute and deliver this Note Purchase Agreement and each Escrow and Paying Agent Agreement (collectively, the “Paying Agent Agreements”) and to carry out the
obligations of the Paying Agent under each of the Paying Agent Agreements; 
 (ii) Due Authorization; No Conflicts.
The execution and delivery by the Paying Agent of each of the Paying Agent Agreements and the performance by the Paying Agent of its obligations hereunder and thereunder have been duly authorized by the Paying Agent and will not violate its articles
of association or by-laws or the provisions of any indenture, mortgage, contract or other agreement to which it is a party or by which it is bound; and 

(iii) Enforceability. Each of the Paying Agent Agreements constitutes the legal, valid and binding obligations of the
Paying Agent enforceable against it in accordance with its terms, except as the same may be limited by applicable bankruptcy, insolvency, reorganization, moratorium or similar laws affecting the rights of creditors generally and by general
principles of equity, whether considered in a proceeding at law or in equity. 
 SECTION 4. Covenants. 

(a) Covenants of the Company. 

(i) Maintenance of Corporate Existence. Subject to, and except as contemplated by, Section 4(a)(iii) of this
Note Purchase Agreement, the Company shall at all times maintain its corporate existence. 
 (ii) Maintenance of Status as
Certificated Air Carrier; Section 1110. The Company shall, for as long as and to the extent required under Section 1110 in order that the Loan Trustee shall be entitled to any of the benefits of Section 1110 with respect to the
Aircraft, remain a Certificated Air Carrier. 
 (iii) Merger, Consolidation, Acquisition of the Company. The Company
shall not consolidate with or merge into any other Person or convey, transfer or lease substantially all of its assets as an entirety to any Person, unless the Person 

  
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formed by such consolidation or into which the Company is merged or the Person that acquires by conveyance, transfer or lease substantially all of the assets of the Company as an entirety shall
execute and deliver to the Pass Through Trustees, the Subordination Agent, the Escrow Agent and the Paying Agent an agreement containing the express assumption by such successor Person of the due and punctual performance and observance of each
covenant and condition of this Note Purchase Agreement to be performed or observed by the Company. Upon any such consolidation or merger, or any conveyance, transfer or lease of substantially all of the assets of the Company as an entirety, the
successor Person formed by such consolidation or into which the Company is merged or to which such conveyance, transfer or lease is made shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Note
Purchase Agreement with the same effect as if such successor Person had been named as the Company herein. 
 (iv) Notice
of Occurrence of Cut-Off Date. The Company agrees to provide written notice to each of the parties hereto of the occurrence of the Cut-Off Date no later than one Business Day after the date thereof. 

(v) Refinancing of Equipment Notes; Additional Series Equipment Notes. The Company shall have the option, at any time
and from time to time, (A) to redeem any Series B Equipment Notes (or any series of Additional Series Equipment Notes) with respect to all of the Aircraft for which Series B Equipment Notes (or such series of Additional Series
Equipment Notes) are at the time outstanding and issue, with respect to any or all of the Aircraft, new Equipment Notes with the same series designation as, but with terms that may be the same as or different from those of, the redeemed Equipment
Notes, (B) to issue one or more series of Additional Series Equipment Notes with respect to any or all of the Aircraft under any applicable Indenture, and (C) following the payment in full of Series B Equipment Notes (or any
series of Additional Series Equipment Notes) with respect to all of the Aircraft for which Series B Equipment Notes (or such series of Additional Series Equipment Notes) are at the time outstanding, to issue, with respect to any or all of the
Aircraft, new Equipment Notes with the same series designation as, but with terms that may be the same as or different from those of, such Equipment Notes that have been paid in full; provided that the Company shall have obtained a Rating
Agency Confirmation with respect to any Class of Certificates then rated by such Rating Agency that will remain outstanding in connection with such issuance, such redemption and issuance or such payment and issuance, as applicable. Any such
issuance, such redemption and issuance or such payment and issuance, as applicable, shall be subject to the terms of Section 8.01(c) or 8.01(d), as applicable, of the Intercreditor Agreement. If any such new Series B Equipment
Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes are to be so issued, the pass through trustee of 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 13 

 
the pass through trust that acquires such new Series B Equipment Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes, as applicable, shall execute and deliver an
instrument (including, without limitation, a joinder agreement) by which such pass through trustee becomes a party hereto, and each of the parties hereto agrees, at the Company’s request, to enter into any amendments to (or any amendment and
restatement of) this Note Purchase Agreement (including, without limitation, any modifications of the Indenture Form and the Participation Agreement Form) and any other Operative Agreements as may be necessary or desirable to give effect to such
issuance, such redemption and issuance or such payment and issuance of any such new Series B Equipment Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes, as applicable, and the issuance of pass through certificates
by any pass through trust that acquires any such new Series B Equipment Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes, as applicable, and to make changes relating to any of the foregoing (including, without
limitation, to provide for any prefunding mechanism in connection therewith) and to provide for any credit support for any pass through certificates relating to any such new Series B Equipment Notes or Additional Series Equipment Notes or new
Additional Series Equipment Notes (including, without limitation, to provide for payment of fees, interest, expenses, reimbursement of advances and other obligations arising from such credit support (including, without limitation, to specify such
credit support as a “Liquidity Facility” and the provider of any such credit support as a “Liquidity Provider” and, if such Liquidity Facility is to be comprised of more than one instrument, to incorporate appropriate mechanics
for multiple Liquidity Facilities for a single Pass Through Trust)). 
 (vi) Certain Reports to Subordination Agent.
Promptly after the occurrence of a Triggering Event or an Indenture Event of Default resulting from the failure of the Company 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 Company shall, at the Subordination Agent’s request from time to time but in any event no more frequently than once every three months, provide to the Subordination Agent a statement setting forth the
following information with respect to each Aircraft then subject to the lien of an Indenture: (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 respective Indentures to which such Aircraft are subject). As used in this Section 4(a)(vi), the terms “Triggering Event”, “Indenture Event of Default”
and “Regular Distribution Date” have the respective meanings set forth in the Intercreditor Agreement. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 14 

 (b) Covenants by WTNA. 

(i) Status as Citizen of the United States. WTNA, in its individual capacity, covenants with each of the other parties
to this Note Purchase Agreement that it will, immediately upon obtaining knowledge of any facts that would cast doubt upon its continuing status as a Citizen of the United States and promptly upon public disclosure of negotiations in respect of any
transaction which would or might adversely affect such status, notify in writing all parties hereto of all relevant matters in connection therewith. Upon WTNA giving any such notice, WTNA shall, subject to Section 8.01 of any Indenture
then entered into, resign as Loan Trustee in respect of such Indenture. 
 (ii) Situs of Activity. Except with the
consent of the Company, which shall not be unreasonably withheld, WTNA will act as Pass Through Trustee and Subordination Agent solely through its offices within the State of Delaware, except for such services as may be performed for it by
independent agents in the ordinary course of business, but not directly by it, in other states. 
 (c) [Reserved].

 (d) Covenants by the Pass Through Trustees. 

(i) Tax Forms of the Pass Through Trustees. On or prior to the Issuance Date, each Pass Through Trustee shall have
provided a completed and executed copy of IRS Form W-9 to each of the Company, the Subordination Agent, the Liquidity Providers, the Escrow Agent, the Paying Agent and the Depositary. 

(ii) Tax Forms of the Pass Through Trustee of New or Additional Series Pass Through Trust. If any new Equipment Notes or
Additional Series Equipment Notes shall be issued under any Indenture as provided in Section 4(a)(v), on or prior to the date such new Equipment Notes or Additional Series Equipment Notes, as applicable, shall have been so issued, the
pass through trustee of the pass through trust that acquires such new Equipment Notes or the Additional Series Pass Through Trustee, as applicable, shall have provided a completed and executed copy of IRS Form W-9 to each of the Company and the
Subordination Agent and, if a liquidity facility shall have been provided with respect to such new pass through trust or Additional Series Pass Through Trust, to the provider of such liquidity facility and, if such new Equipment Notes or Additional
Series Equipment Notes shall be issued on or prior to the Delivery Period Termination Date, to the Escrow Agent, the Paying Agent and the Depositary. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 15 

 SECTION 5. Depositary Downgrade and Replacement of Depositary. 

(a) Depositary Downgrade and Option to Replace. If (1) the Depositary’s Long-Term Rating issued by a
Rating Agency is downgraded below A- by Fitch or A- by Standard & Poor’s (each such minimum Long-Term Rating, a “Depositary Threshold Rating” for the applicable Rating Agency), or (2) the Company, in its
sole discretion, gives written notice to the Depositary of the Company’s election that the Depositary be replaced, the Company shall, within 35 days after such event occurring, cause the Depositary to be replaced with a depositary bank meeting
the terms and on the conditions set forth in Section 5(c) (a “Replacement Depositary”). 
 (b)
[Reserved.] 
 (c) Terms and Preconditions for Replacement of Depositary. 

(i) Minimum Credit Ratings; Confirmation from Ratings Agency. Any Replacement Depositary may either be
(x) one that meets the Depositary Threshold Rating for each Rating Agency or (y) one that does not meet the Depositary Threshold Rating for each Rating Agency, so long as, in the case of either of the immediately preceding
clauses (x) and (y), the Company shall have obtained a Rating Agency Confirmation with respect to each Class of Certificates then rated by such Rating Agency in connection with the replacement of the Depositary with such Replacement Depositary.

 (ii) Certain Fees and Expenses. The Company shall pay all fees, expenses and other amounts then owing to the
replaced Depositary. The Company shall also pay (x) any up-front fee of the Replacement Depositary and (y) all out-of-pocket expenses (including reasonable fees and expenses of legal counsel) of the parties hereto (including,
without limitation, all amounts payable to the Rating Agencies) incurred in connection with such replacement. 
 (iii)
Replacement Deposit Agreements; Opinions and Other Closing Requirements. The Company shall cause the Replacement Depositary to enter into a Replacement Deposit Agreement for each of the Class A Certificates and the Class B Certificates
with the Escrow Agent (and the Escrow Agent agrees to enter into any such Replacement Deposit Agreement upon request of the Company) and shall cause the Replacement Depositary to deliver to the Company and each Rating Agency legal opinions and other
closing documentation substantially similar in scope and substance as those that were delivered by the Depositary being replaced in connection with the execution and delivery of the Deposit Agreement being replaced. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 16 

 (d) Withdrawal Certificate and Notice of Replacement Withdrawal. Upon
satisfaction of the conditions set forth in Section 5(c), the Company shall instruct each Pass Through Trustee, and each Pass Through Trustee agrees, to execute and deliver to the Escrow Agent a duly completed Withdrawal Certificate (as
defined in the Escrow and Paying Agent Agreements) together with a Notice of Replacement Withdrawal (as defined in the Escrow and Paying Agent Agreements). 

(e) Amendments to Documents. Each of the parties hereto agrees, at the Company’s request, to enter into any
amendments to this Note Purchase Agreement, the Escrow and Paying Agent Agreements and any other Operative Agreements as may be necessary or desirable to give effect to the replacement of the Depositary with the Replacement Depositary and the
replacement of the Deposit Agreements with the Replacement Deposit Agreements. 
 (f) Effect of Replacement. Until the
execution and delivery of the Replacement Deposit Agreements, the Deposit Agreements with the Depositary being replaced shall remain in full force and effect. Upon the execution and delivery of the Replacement Deposit Agreements, the Replacement
Depositary shall be deemed to be the Depositary with all of the rights and obligations of the Depositary hereunder and under the other Operative Agreements and the Replacement Deposit Agreements shall be deemed to be the Deposit Agreements hereunder
and under the other Operative Agreements. 
 SECTION 6. Notices. Unless otherwise expressly specified or permitted by the terms
hereof, all notices, requests, demands, authorizations, directions, consents or waivers required or permitted by the terms and provisions of this Note Purchase Agreement shall be in English and in writing, and given by United States registered or
certified mail, return receipt requested, overnight courier service or facsimile, and any such notice shall be effective when received (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) to the relevant party hereto at the address or facsimile number set forth below the signature of such party at the foot of this Note Purchase
Agreement or to such other address or facsimile number as such party may hereafter specify by notice to the other parties. 

SECTION 7. Expenses. So long as no Equipment Notes have been issued in respect of any Aircraft, the Company agrees to pay: 

(a) Certain Liquidity Provider Fees. To the Subordination Agent when due an amount or amounts equal to the fees payable
to the applicable Liquidity Provider under Section 2.03 of each Liquidity Facility and under the related Fee Letter (as defined in the Intercreditor Agreement); 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 17 

 (b) Under the Liquidity Facilities. To the Subordination Agent when due
(i) the amount equal to interest on any Downgrade Advance (other than any Applied Downgrade Advance) payable under Section 3.07 of each Liquidity Facility minus Investment Earnings while such Downgrade Advance shall be
outstanding and (ii) any other amounts owed to the applicable Liquidity Provider by the Subordination Agent as borrower under each Liquidity Facility (other than amounts due as repayment of advances thereunder or as interest on such
advances), except to the extent payable pursuant to clause (i) of this sentence; 
 (c) Under the Pass Through Trust
Agreements. All compensation and reimbursement of expenses, disbursements and advances payable by the Company under the Pass Through Trust Agreements; 

(d) Under the Intercreditor Agreement. All compensation and reimbursement of expenses and disbursements payable to the
Subordination Agent under the Intercreditor Agreement except with respect to any income or franchise taxes incurred by the Subordination Agent in connection with the transactions contemplated by the Intercreditor Agreement; and 

(e) Escrow Agent and Paying Agent. In the event the Company requests any amendment to any Operative Agreement, all
reasonable fees and expenses (including, without limitation, fees and disbursements of counsel) of the Escrow Agent and/or the Paying Agent in connection therewith. 

For purposes of this Section 7, the terms “Applied Downgrade Advance”, “Downgrade Advance” and “Investment Earnings”
shall have the meanings specified in each Liquidity Facility. 
 SECTION 8. Further Assurances. Each party hereto shall duly
execute, acknowledge and deliver, or shall cause to be executed, acknowledged and delivered, all such further agreements, instruments, certificates or documents, and shall do and cause to be done such further acts and things, in any case, as any
other party hereto shall reasonably request in connection with its administration of, or to carry out more effectually the purposes of, or to better assure and confirm unto it the rights and benefits to be provided under, this Note Purchase
Agreement. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 18 

 SECTION 9. Miscellaneous. 

(a) Survival of Representations and Covenants. The representations and warranties herein of the Company, the
Subordination Agent, the Escrow Agent, the Paying Agent and each Pass Through Trustee shall survive the expiration or other termination of this Note Purchase Agreement. The rights and obligations of each of the parties hereto set forth in
Section 4(a)(v), Section 4(b) and Section 5 of this Note Purchase Agreement shall survive the expiration or other termination of this Note Purchase Agreement. 

(b) Counterparts; Amendments; Effect of Headings; Successors and Assigns. This Note Purchase Agreement may be executed
in any number of counterparts (and each of the parties hereto shall not be required to execute the same counterpart). Each counterpart of this Note Purchase Agreement, including a signature page executed by each of the parties hereto, shall be an
original counterpart of this Note Purchase Agreement, but all of such counterparts together shall constitute one instrument. Neither this Note Purchase Agreement nor any of the terms hereof may be terminated, amended, supplemented, waived or
modified orally, but only by an instrument in writing signed by the party against which the enforcement of the termination, amendment, supplement, waiver or modification is sought. The Table of Contents to this Note Purchase Agreement and the
headings of the various Sections and Subsections of this Note Purchase Agreement are for convenience of reference only and shall not modify, define, expand or limit any of the terms or provisions hereof. The terms of this Note Purchase Agreement
shall be binding upon, and shall inure to the benefit of, the Company and its successors and permitted assigns, the Pass Through Trustee and its successors as Pass Through Trustee (and any additional trustee appointed) under any of the Pass Through
Trust Agreements, the Escrow Agent and its successors as Escrow Agent under the Escrow and Paying Agent Agreements, the Paying Agent and its successors as Paying Agent under the Escrow and Paying Agent Agreements and the Subordination Agent and its
successors as Subordination Agent under the Intercreditor Agreement. 
 (c) Benefits of Agreement. This Note Purchase
Agreement is not intended to, and shall not, provide any Person not a party hereto (other than the Underwriters, each of the beneficiaries of Section 7 hereof, each Liquidity Provider as a beneficiary of Section 2(b) hereof
and the Depositary as a beneficiary of Section 5 hereof) with any rights of any nature whatsoever against any of the parties hereto, and no Person not a party hereto (other than the Underwriters, each of the beneficiaries of
Section 7 hereof, each Liquidity Provider as a beneficiary of Section 2(b) hereof and the Depositary as a beneficiary of Section 5 hereof) shall have any right, power or privilege in respect of, or have any
benefit or interest arising out of, this Note Purchase Agreement. To the extent that this Note Purchase Agreement expressly confers upon, gives or grants any right, power, privilege, benefit, interest, remedy or claim to any of the beneficiaries of
Section 7 hereof 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 19 

 
(including, but not limited to, rights, powers, privileges, benefits, interests, remedies and claims under Section 7), to a Liquidity Provider as a beneficiary of
Section 2(b) hereof or to the Depositary with respect to Section 5 hereof, each such party is hereby recognized as a third party beneficiary hereunder and may enforce any such right, power, privilege, benefit, interest,
remedy or claim. 
 SECTION 10. Governing Law. THIS NOTE PURCHASE 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. THIS NOTE PURCHASE AGREEMENT IS BEING DELIVERED IN THE STATE OF NEW YORK. 

SECTION 11. Submission to Jurisdiction. 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 (a) 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 Note Purchase 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 (b) 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 Note Purchase Agreement or the subject matter hereof or any of the transactions contemplated hereby may not be enforced in or by such
courts. 
 [Signature Pages Follow.] 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 20 

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

					
	SPIRIT AIRLINES, INC.
		
	By:	 	 /s/ Edward Christie

		 	Name:	 	Edward Christie
		 	Title:	 	Senior Vice President and Chief Financial Officer
		 	Address:	 	2800 Executive Way
		 		 	Miramar, Florida 33025
		 		 	Ref.: Spirit Airlines 2015-1 EETC
		 		 	Attention: Legal and Treasury Dept.
		 		 	Telephone: (954) 447-7914
		 		 	Facsimile: (954) 447-7854

  
 Signature Page 

  
 Note Purchase Agreement

 (Spirit 2015-1 EETC) 

 
					
	WILMINGTON TRUST, NATIONAL ASSOCIATION,
	not in its individual capacity, except as otherwise provided herein, but solely as Pass Through Trustee
		
	By:	 	 /s/ Scott Wetzel

		 	Name:	 	Scott Wetzel
		 	Title:	 	Financial Services Officer
		 	Address:	 	1100 North Market Street
		 		 	Wilmington, Delaware 19890-1605
		 		 	Ref: Spirit Airlines 2015-1
		 		 	Attn: Corporate Trust Administration
		 		 	Telephone: (302) 636-6387
		 		 	Telecopier: (302) 636-4140
	
	WILIMINGTON TRUST, NATIONAL ASSOCIATION,
	not in its individual capacity, except as otherwise provided herein, but solely as Subordination Agent
		
	By:	 	 /s/ Scott Wetzel

		 	Name:	 	Scott Wetzel
		 	Title:	 	Financial Services Officer
		 	Address:	 	1100 North Market Street
		 		 	Wilmington, Delaware 19890-1605
		 		 	Ref: Spirit Airlines 2015-1
		 		 	Attn: Corporate Trust Administration
		 		 	Telephone: (302) 636-6387
		 		 	Telecopier: (302) 636-4140

  
 Signature Page 

  
 Note Purchase Agreement

 (Spirit 2015-1 EETC) 

 
					
	WILMINGTON TRUST COMPANY, not in its individual capacity, except as otherwise provided herein, but solely as Escrow Agent
		
	By:	 	 /s/ Scott Wetzel

		 	Name:	 	Scott Wetzel
		 	Title:	 	Financial Services Officer
		 	Address:	 	1100 North Market Street
		 		 	Wilmington, Delaware 19890-1605
		 		 	Ref: Spirit Airlines 2015-1
		 		 	Attn: Corporate Trust Administration
		 		 	Telephone: (302) 636-6387
		 		 	Telecopier: (302) 636-4140
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, not in its individual capacity, except as otherwise provided herein, but solely as Paying Agent
		
	By:	 	 /s/ Scott Wetzel

		 	Name:	 	Scott Wetzel
		 	Title:	 	Financial Services Officer
		 	Address:	 	1100 North Market Street
		 		 	Wilmington, Delaware 19890-1605
		 		 	Ref: Spirit Airlines 2015-1
		 		 	Attn: Corporate Trust Administration
		 		 	Telephone: (302) 636-6387
		 		 	Telecopier: (302) 636-4140

  
 Signature Page 

  
 Note Purchase Agreement

 (Spirit 2015-1 EETC) 

 SCHEDULE I to 

NOTE PURCHASE AGREEMENT 

AIRCRAFT 
  

															
	 No.
	  	 Expected

U.S.
 Registration

No.
	  	 Airframe
Manufacturer
	  	 Expected Airframe

Model (including

generic manufacturer

and model)
	  	 Expected
Airframe

MSN
	  	 Engine
Manufacturer
	  	 Expected Engine
Model

(including generic
manufacturer and
model)
	  	 Current Scheduled
Delivery Month

								
	1.	  	N660NK	  	Airbus	  	Airbus A321-200 (Airbus A321-200)	  	6804	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	October 2015
								
	2.	  	N661NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	6867	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	November 2015
								
	3.	  	N662NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	6897	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	December 2015
								
	4.	  	N663NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	February 2016
								
	5.	  	N664NK	  	Airbus	  	Airbus A321-200 (Airbus A321-200)	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	March 2016
								
	6.	  	N665NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	March 2016
								
	7.	  	N667NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	April 2016
								
	8.	  	N668NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	May 2016

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. I - 1 

 SCHEDULE I to 

NOTE PURCHASE AGREEMENT 

(Cont’d) 
  

															
	 No.
	  	 Expected

U.S.
 Registration

No.
	  	 Airframe
Manufacturer
	  	 Expected Airframe

Model (including

generic manufacturer

and model)
	  	 Expected
Airframe

MSN
	  	 Engine
Manufacturer
	  	 Expected Engine
Model

(including generic
manufacturer and
model)
	  	 Current Scheduled
Delivery Month

								
	 9.
	  	 N644NK
	  	Airbus	  	 Airbus A320-200

(Airbus A320-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2527-A5

V2500
	  	June 2016
								
	10.	  	N669NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	August 2016
								
	11.	  	N645NK	  	Airbus	  	 Airbus A320-200

(Airbus A320-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2527-A5

V2500
	  	September 2016
								
	12.	  	N670NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	September 2016
								
	13.	  	N671NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	November 2016
								
	14.	  	N646NK	  	Airbus	  	 Airbus A320-200

(Airbus A320-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2527-A5

V2500
	  	December 2016
								
	15.	  	N672NK	  	Airbus	  	 Airbus A321-200

(Airbus A321-200)
	  	TBD	  	IAE International Aero Engines AG	  	 V2533-A5

V2500
	  	December 2016

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. I - 2 

 SCHEDULE II to 

NOTE PURCHASE AGREEMENT 

TRUST SUPPLEMENTS 
 Trust
Supplement No. 2015-1A, dated as of the Issuance Date, between the Company and the Pass Through Trustee in respect of the Spirit Airlines Pass Through Trust, Series 2015-1A. 

Trust Supplement No. 2015-1B, dated as of the Issuance Date, between the Company and the Pass Through Trustee in respect of the Spirit Airlines Pass
Through Trust, Series 2015-1B. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. II - 1 

 SCHEDULE III to 

NOTE PURCHASE AGREEMENT 

REQUIRED TERMS 
 Equipment Notes

 Obligor:            The Company 

Maximum Aggregate Principal Amount: $576,581,000 
 The original
principal amount and amortization schedule of the Series A Equipment Notes and the Series B Equipment Notes issued with respect to an Aircraft shall be as set forth in the following tables (in the case of the amortization schedules, expressed as
percentages of the original principal amount of such Equipment Notes); provided that, in the case of any Early Delivery Aircraft, if any Equipment Note is issued with respect to such Early Delivery Aircraft on or after October 1, 2016,
(a) the original principal amount of such Equipment Note for such Early Delivery Aircraft will be reduced by the principal amortization installment scheduled for payment on October 1, 2016 thereon as set forth in this Schedule III
and the principal amortization schedule for such Equipment Note shall commence on the first scheduled principal payment date in such schedule occurring after the issuance of such Equipment Note and (b) the amortization percentages set
forth in this Schedule III under “Original Amortization Schedules” for such Early Delivery Aircraft shall be adjusted to reflect the amortization of such reduced principal amount on the remaining payment dates as set forth in this Schedule
III under “Adjusted Amortization Schedules – Early Delivery Aircraft” for such Early Delivery Aircraft: 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III - 1 

 PRINCIPAL AMOUNTS OF EQUIPMENT NOTES 

 

	I.	EARLY DELIVERY AIRCRAFT 

  

																																	
	 Early Delivery
Aircraft
	 	Initial
Series A
Principal
Amount Before
10/1/16	 	 	Initial
Series B
Principal
Amount Before
10/1/16	 	 	Total Initial
Principal
Amount Before
10/1/16	 	 	Scheduled
Series A
Principal
Amortization
on 10/1/16	 	 	Scheduled
Series B
Principal
Amortization
on 10/1/16	 	 	Initial
Series A
Principal
Amount on or
after 10/1/16	 	 	Initial
Series B
Principal
Amount on or
after 10/1/16	 	 	Total Initial
Principal on or
after 10/1/16	 
	 N660NK
	 	$	32,080,000.00	  	 	$	8,356,000.00	  	 	$	40,436,000.00	  	 	$	2,599,546.49	  	 	$	1,387,104.11	  	 	$	29,480,453.51	  	 	$	6,968,895.89	  	 	$	36,449,349.40	  
	 N661NK
	 	 	31,924,000.00	  	 	 	8,336,000.00	  	 	 	40,260,000.00	  	 	$	2,557,348.27	  	 	$	1,381,329.34	  	 	 	29,366,651.73	  	 	 	6,954,670.66	  	 	 	36,321,322.39	  
	 N662NK
	 	 	31,768,000.00	  	 	 	8,316,000.00	  	 	 	40,084,000.00	  	 	$	2,515,150.06	  	 	$	1,375,554.56	  	 	 	29,252,849.94	  	 	 	6,940,445.44	  	 	 	36,193,295.38	  
	 N663NK
	 	 	31,570,000.00	  	 	 	8,307,000.00	  	 	 	39,877,000.00	  	 	$	1,988,241.70	  	 	$	1,262,478.74	  	 	 	29,581,758.30	  	 	 	7,044,521.26	  	 	 	36,626,279.56	  
	 N664NK
	 	 	31,413,000.00	  	 	 	8,288,000.00	  	 	 	39,701,000.00	  	 	$	1,947,225.45	  	 	$	1,257,976.71	  	 	 	29,465,774.55	  	 	 	7,030,023.29	  	 	 	36,495,797.84	  
	 N665NK
	 	 	31,413,000.00	  	 	 	8,288,000.00	  	 	 	39,701,000.00	  	 	$	1,947,225.45	  	 	$	1,257,976.71	  	 	 	29,465,774.55	  	 	 	7,030,023.29	  	 	 	36,495,797.84	  
	 N667NK
	 	 	31,369,000.00	  	 	 	8,299,000.00	  	 	 	39,668,000.00	  	 	$	1,912,385.58	  	 	$	1,257,940.46	  	 	 	29,456,614.42	  	 	 	7,041,059.54	  	 	 	36,497,673.96	  

  

	II.	AIRCRAFT OTHER THAN EARLY DELIVERY AIRCRAFT 

  

													
	 Aircraft
	  	Series A
Principal
Amount	 	  	Series B
Principal
Amount	 	  	Total	 
	 N668NK
	  	$	31,212,000.00	  	  	$	8,279,000.00	  	  	$	39,491,000.00	  
	 N644NK
	  	 	27,150,000.00	  	  	 	7,221,000.00	  	  	 	34,371,000.00	  
	 N669NK
	  	 	30,851,000.00	  	  	 	8,249,000.00	  	  	 	39,100,000.00	  
	 N645NK
	  	 	26,840,000.00	  	  	 	7,197,000.00	  	  	 	34,037,000.00	  
	 N670NK
	  	 	30,692,000.00	  	  	 	8,230,000.00	  	  	 	38,922,000.00	  
	 N671NK
	  	 	30,486,000.00	  	  	 	8,220,000.00	  	  	 	38,706,000.00	  
	 N646NK
	  	 	26,527,000.00	  	  	 	7,173,000.00	  	  	 	33,700,000.00	  
	 N672NK
	  	 	30,327,000.00	  	  	 	8,200,000.00	  	  	 	38,527,000.00	  

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III - 2 

 ORIGINAL AMORTIZATION SCHEDULES1

 Series A Equipment Notes 

Airbus A321-200 
 N660NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	8.10332447	% 
	 April 1, 2017
	  	 	1.74163641	% 
	 October 1, 2017
	  	 	3.59749389	% 
	 April 1, 2018
	  	 	3.58302431	% 
	 October 1, 2018
	  	 	3.56850321	% 
	 April 1, 2019
	  	 	3.55392671	% 
	 October 1, 2019
	  	 	3.53929171	% 
	 April 1, 2020
	  	 	3.13525461	% 
	 October 1, 2020
	  	 	2.30477855	% 
	 April 1, 2021
	  	 	2.30396107	% 
	 October 1, 2021
	  	 	2.30309963	% 
	 April 1, 2022
	  	 	2.30219112	% 
	 October 1, 2022
	  	 	2.30123211	% 
	 April 1, 2023
	  	 	2.30021842	% 
	 October 1, 2023
	  	 	2.29914638	% 
	 April 1, 2024
	  	 	2.29801088	% 
	 October 1, 2024
	  	 	2.29680726	% 
	 April 1, 2025
	  	 	2.29552952	% 
	 October 1, 2025
	  	 	2.29417170	% 
	 April 1, 2026
	  	 	2.29272709	% 
	 October 1, 2026
	  	 	2.29118800	% 
	 April 1, 2027
	  	 	2.28954589	% 
	 October 1, 2027
	  	 	2.28779127	% 
	 April 1, 2028
	  	 	34.71714579	% 

  

	1 	With respect to each Early Delivery Aircraft, the schedules for such Early Delivery Aircraft have been prepared assuming the Equipment Notes for such Early Delivery Aircraft have been issued before October 1, 2016.
Each Aircraft listed with ** is an Early Delivery Aircraft. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-3 

 Series B Equipment Notes 

Airbus A321-200 
 N660NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	16.60009706	% 
	 April 1, 2017
	  	 	2.64153100	% 
	 October 1, 2017
	  	 	6.62117580	% 
	 April 1, 2018
	  	 	6.61162697	% 
	 October 1, 2018
	  	 	3.41448731	% 
	 April 1, 2019
	  	 	3.40668466	% 
	 October 1, 2019
	  	 	3.39881211	% 
	 April 1, 2020
	  	 	3.20402310	% 
	 October 1, 2020
	  	 	3.20243310	% 
	 April 1, 2021
	  	 	3.20075838	% 
	 October 1, 2021
	  	 	3.19899318	% 
	 April 1, 2022
	  	 	3.19713212	% 
	 October 1, 2022
	  	 	3.19516695	% 
	 April 1, 2023
	  	 	3.19309071	% 
	 October 1, 2023
	  	 	3.19089385	% 
	 April 1, 2024
	  	 	31.72309371	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-4 

 Series A Equipment Notes 

Airbus A321-200 
 N661NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	8.01073885	% 
	 April 1, 2017
	  	 	1.68614049	% 
	 October 1, 2017
	  	 	3.55290424	% 
	 April 1, 2018
	  	 	3.54020154	% 
	 October 1, 2018
	  	 	3.52744687	% 
	 April 1, 2019
	  	 	3.51463689	% 
	 October 1, 2019
	  	 	3.50176779	% 
	 April 1, 2020
	  	 	3.15057527	% 
	 October 1, 2020
	  	 	2.31604110	% 
	 April 1, 2021
	  	 	2.31521962	% 
	 October 1, 2021
	  	 	2.31435400	% 
	 April 1, 2022
	  	 	2.31344105	% 
	 October 1, 2022
	  	 	2.31247726	% 
	 April 1, 2023
	  	 	2.31145878	% 
	 October 1, 2023
	  	 	2.31038134	% 
	 April 1, 2024
	  	 	2.30924038	% 
	 October 1, 2024
	  	 	2.30803076	% 
	 April 1, 2025
	  	 	2.30674687	% 
	 October 1, 2025
	  	 	2.30538247	% 
	 April 1, 2026
	  	 	2.30393077	% 
	 October 1, 2026
	  	 	2.30238404	% 
	 April 1, 2027
	  	 	2.30073393	% 
	 October 1, 2027
	  	 	2.29897090	% 
	 April 1, 2028
	  	 	34.88679479	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-5 

 Series B Equipment Notes 

Airbus A321-200 
 N661NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	16.57064947	% 
	 April 1, 2017
	  	 	2.61722817	% 
	 October 1, 2017
	  	 	6.60730086	% 
	 April 1, 2018
	  	 	6.59860857	% 
	 October 1, 2018
	  	 	3.39467838	% 
	 April 1, 2019
	  	 	3.38773560	% 
	 October 1, 2019
	  	 	3.38072397	% 
	 April 1, 2020
	  	 	3.21171113	% 
	 October 1, 2020
	  	 	3.21011636	% 
	 April 1, 2021
	  	 	3.20843738	% 
	 October 1, 2021
	  	 	3.20666843	% 
	 April 1, 2022
	  	 	3.20480266	% 
	 October 1, 2022
	  	 	3.20283289	% 
	 April 1, 2023
	  	 	3.20075144	% 
	 October 1, 2023
	  	 	3.19854942	% 
	 April 1, 2024
	  	 	31.79920525	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-6 

 Series A Equipment Notes 

Airbus A321-200 
 N662NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	7.91724396	% 
	 April 1, 2017
	  	 	1.63009947	% 
	 October 1, 2017
	  	 	3.50787673	% 
	 April 1, 2018
	  	 	3.49695817	% 
	 October 1, 2018
	  	 	3.48598741	% 
	 April 1, 2019
	  	 	3.47496103	% 
	 October 1, 2019
	  	 	3.46387531	% 
	 April 1, 2020
	  	 	3.16604649	% 
	 October 1, 2020
	  	 	2.32741425	% 
	 April 1, 2021
	  	 	2.32658874	% 
	 October 1, 2021
	  	 	2.32571887	% 
	 April 1, 2022
	  	 	2.32480144	% 
	 October 1, 2022
	  	 	2.32383291	% 
	 April 1, 2023
	  	 	2.32280943	% 
	 October 1, 2023
	  	 	2.32172671	% 
	 April 1, 2024
	  	 	2.32058014	% 
	 October 1, 2024
	  	 	2.31936458	% 
	 April 1, 2025
	  	 	2.31807438	% 
	 October 1, 2025
	  	 	2.31670329	% 
	 April 1, 2026
	  	 	2.31524446	% 
	 October 1, 2026
	  	 	2.31369013	% 
	 April 1, 2027
	  	 	2.31203192	% 
	 October 1, 2027
	  	 	2.31026023	% 
	 April 1, 2028
	  	 	35.05810995	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-7 

 Series B Equipment Notes 

Airbus A321-200 
 N662NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	16.54106013	% 
	 April 1, 2017
	  	 	2.59280856	% 
	 October 1, 2017
	  	 	6.59335907	% 
	 April 1, 2018
	  	 	6.58552754	% 
	 October 1, 2018
	  	 	3.37477381	% 
	 April 1, 2019
	  	 	3.36869601	% 
	 October 1, 2019
	  	 	3.36254918	% 
	 April 1, 2020
	  	 	3.21943531	% 
	 October 1, 2020
	  	 	3.21783670	% 
	 April 1, 2021
	  	 	3.21615368	% 
	 October 1, 2021
	  	 	3.21438047	% 
	 April 1, 2022
	  	 	3.21251022	% 
	 October 1, 2022
	  	 	3.21053571	% 
	 April 1, 2023
	  	 	3.20844925	% 
	 October 1, 2023
	  	 	3.20624194	% 
	 April 1, 2024
	  	 	31.87568242	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-8 

 Series A Equipment Notes 

Airbus A321-200 
 N663NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	6.29788312	% 
	 April 1, 2017
	  	 	1.51779867	% 
	 October 1, 2017
	  	 	3.44835214	% 
	 April 1, 2018
	  	 	3.44196690	% 
	 October 1, 2018
	  	 	3.43557314	% 
	 April 1, 2019
	  	 	3.42917038	% 
	 October 1, 2019
	  	 	3.42275797	% 
	 April 1, 2020
	  	 	3.23119062	% 
	 October 1, 2020
	  	 	2.37045698	% 
	 April 1, 2021
	  	 	2.37032290	% 
	 October 1, 2021
	  	 	2.37018163	% 
	 April 1, 2022
	  	 	2.37003259	% 
	 October 1, 2022
	  	 	2.36987529	% 
	 April 1, 2023
	  	 	2.36970906	% 
	 October 1, 2023
	  	 	2.36953320	% 
	 April 1, 2024
	  	 	2.36934697	% 
	 October 1, 2024
	  	 	2.36914951	% 
	 April 1, 2025
	  	 	2.36893997	% 
	 October 1, 2025
	  	 	2.36871729	% 
	 April 1, 2026
	  	 	2.36848033	% 
	 October 1, 2026
	  	 	2.36822787	% 
	 April 1, 2027
	  	 	2.36795854	% 
	 October 1, 2027
	  	 	2.36767080	% 
	 April 1, 2028
	  	 	36.23670412	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-9 

 Series B Equipment Notes 

Airbus A321-200 
 N663NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	15.19776983	% 
	 April 1, 2017
	  	 	2.56304442	% 
	 October 1, 2017
	  	 	6.64912796	% 
	 April 1, 2018
	  	 	6.64567148	% 
	 October 1, 2018
	  	 	3.37119490	% 
	 April 1, 2019
	  	 	3.36802191	% 
	 October 1, 2019
	  	 	3.36483773	% 
	 April 1, 2020
	  	 	3.27368882	% 
	 October 1, 2020
	  	 	3.27343036	% 
	 April 1, 2021
	  	 	3.27315830	% 
	 October 1, 2021
	  	 	3.27287192	% 
	 April 1, 2022
	  	 	3.27256964	% 
	 October 1, 2022
	  	 	3.27225063	% 
	 April 1, 2023
	  	 	3.27191345	% 
	 October 1, 2023
	  	 	3.27155676	% 
	 April 1, 2024
	  	 	32.65889190	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-10 

 Series A Equipment Notes 

Airbus A321-200 
 N664NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	6.19878856	% 
	 April 1, 2017
	  	 	1.45916194	% 
	 October 1, 2017
	  	 	3.40123840	% 
	 April 1, 2018
	  	 	3.39669548	% 
	 October 1, 2018
	  	 	3.39214398	% 
	 April 1, 2019
	  	 	3.38758345	% 
	 October 1, 2019
	  	 	3.38301321	% 
	 April 1, 2020
	  	 	3.24733989	% 
	 October 1, 2020
	  	 	2.38230436	% 
	 April 1, 2021
	  	 	2.38216961	% 
	 October 1, 2021
	  	 	2.38202763	% 
	 April 1, 2022
	  	 	2.38187785	% 
	 October 1, 2022
	  	 	2.38171977	% 
	 April 1, 2023
	  	 	2.38155270	% 
	 October 1, 2023
	  	 	2.38137596	% 
	 April 1, 2024
	  	 	2.38118881	% 
	 October 1, 2024
	  	 	2.38099035	% 
	 April 1, 2025
	  	 	2.38077977	% 
	 October 1, 2025
	  	 	2.38055598	% 
	 April 1, 2026
	  	 	2.38031783	% 
	 October 1, 2026
	  	 	2.38006411	% 
	 April 1, 2027
	  	 	2.37979343	% 
	 October 1, 2027
	  	 	2.37950425	% 
	 April 1, 2028
	  	 	36.41781266	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-11 

 Series B Equipment Notes 

Airbus A321-200 
 N664NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	15.17829042	% 
	 April 1, 2017
	  	 	2.53754573	% 
	 October 1, 2017
	  	 	6.63388429	% 
	 April 1, 2018
	  	 	6.63130804	% 
	 October 1, 2018
	  	 	3.35021272	% 
	 April 1, 2019
	  	 	3.34792037	% 
	 October 1, 2019
	  	 	3.34561692	% 
	 April 1, 2020
	  	 	3.28119365	% 
	 October 1, 2020
	  	 	3.28093460	% 
	 April 1, 2021
	  	 	3.28066192	% 
	 October 1, 2021
	  	 	3.28037488	% 
	 April 1, 2022
	  	 	3.28007191	% 
	 October 1, 2022
	  	 	3.27975217	% 
	 April 1, 2023
	  	 	3.27941421	% 
	 October 1, 2023
	  	 	3.27905671	% 
	 April 1, 2024
	  	 	32.73376146	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-12 

 Series A Equipment Notes 

Airbus A321-200 
 N665NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	6.19878856	% 
	 April 1, 2017
	  	 	1.45916194	% 
	 October 1, 2017
	  	 	3.40123840	% 
	 April 1, 2018
	  	 	3.39669548	% 
	 October 1, 2018
	  	 	3.39214398	% 
	 April 1, 2019
	  	 	3.38758345	% 
	 October 1, 2019
	  	 	3.38301321	% 
	 April 1, 2020
	  	 	3.24733989	% 
	 October 1, 2020
	  	 	2.38230436	% 
	 April 1, 2021
	  	 	2.38216961	% 
	 October 1, 2021
	  	 	2.38202763	% 
	 April 1, 2022
	  	 	2.38187785	% 
	 October 1, 2022
	  	 	2.38171977	% 
	 April 1, 2023
	  	 	2.38155270	% 
	 October 1, 2023
	  	 	2.38137596	% 
	 April 1, 2024
	  	 	2.38118881	% 
	 October 1, 2024
	  	 	2.38099035	% 
	 April 1, 2025
	  	 	2.38077977	% 
	 October 1, 2025
	  	 	2.38055598	% 
	 April 1, 2026
	  	 	2.38031783	% 
	 October 1, 2026
	  	 	2.38006411	% 
	 April 1, 2027
	  	 	2.37979343	% 
	 October 1, 2027
	  	 	2.37950425	% 
	 April 1, 2028
	  	 	36.41781266	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-13 

 Series B Equipment Notes 

Airbus A321-200 
 N665NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	15.17829042	% 
	 April 1, 2017
	  	 	2.53754573	% 
	 October 1, 2017
	  	 	6.63388429	% 
	 April 1, 2018
	  	 	6.63130804	% 
	 October 1, 2018
	  	 	3.35021272	% 
	 April 1, 2019
	  	 	3.34792037	% 
	 October 1, 2019
	  	 	3.34561692	% 
	 April 1, 2020
	  	 	3.28119365	% 
	 October 1, 2020
	  	 	3.28093460	% 
	 April 1, 2021
	  	 	3.28066192	% 
	 October 1, 2021
	  	 	3.28037488	% 
	 April 1, 2022
	  	 	3.28007191	% 
	 October 1, 2022
	  	 	3.27975217	% 
	 April 1, 2023
	  	 	3.27941421	% 
	 October 1, 2023
	  	 	3.27905671	% 
	 April 1, 2024
	  	 	32.73376146	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-14 

 Series A Equipment Notes 

Airbus A321-200 
 N667NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	6.09641869	% 
	 April 1, 2017
	  	 	1.39997010	% 
	 October 1, 2017
	  	 	3.35373279	% 
	 April 1, 2018
	  	 	3.35105062	% 
	 October 1, 2018
	  	 	3.34835981	% 
	 April 1, 2019
	  	 	3.34565998	% 
	 October 1, 2019
	  	 	3.34295033	% 
	 April 1, 2020
	  	 	3.26373066	% 
	 October 1, 2020
	  	 	2.39432889	% 
	 April 1, 2021
	  	 	2.39419344	% 
	 October 1, 2021
	  	 	2.39405075	% 
	 April 1, 2022
	  	 	2.39390025	% 
	 October 1, 2022
	  	 	2.39374134	% 
	 April 1, 2023
	  	 	2.39357343	% 
	 October 1, 2023
	  	 	2.39339580	% 
	 April 1, 2024
	  	 	2.39320769	% 
	 October 1, 2024
	  	 	2.39300829	% 
	 April 1, 2025
	  	 	2.39279658	% 
	 October 1, 2025
	  	 	2.39257168	% 
	 April 1, 2026
	  	 	2.39233233	% 
	 October 1, 2026
	  	 	2.39207734	% 
	 April 1, 2027
	  	 	2.39180529	% 
	 October 1, 2027
	  	 	2.39151465	% 
	 April 1, 2028
	  	 	36.60162925	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-15 

 Series B Equipment Notes 

Airbus A321-200 
 N667NK**

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	15.15773539	% 
	 April 1, 2017
	  	 	2.51195915	% 
	 October 1, 2017
	  	 	6.61864767	% 
	 April 1, 2018
	  	 	6.61695530	% 
	 October 1, 2018
	  	 	3.32917291	% 
	 April 1, 2019
	  	 	3.32776503	% 
	 October 1, 2019
	  	 	3.32634643	% 
	 April 1, 2020
	  	 	3.28877106	% 
	 October 1, 2020
	  	 	3.28851151	% 
	 April 1, 2021
	  	 	3.28823846	% 
	 October 1, 2021
	  	 	3.28795048	% 
	 April 1, 2022
	  	 	3.28764682	% 
	 October 1, 2022
	  	 	3.28732642	% 
	 April 1, 2023
	  	 	3.28698759	% 
	 October 1, 2023
	  	 	3.28662935	% 
	 April 1, 2024
	  	 	32.80935643	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-16 

 Series A Equipment Notes 

Airbus A321-200 
 N668NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	7.33714559	% 
	 October 1, 2017
	  	 	3.30560400	% 
	 April 1, 2018
	  	 	3.30480145	% 
	 October 1, 2018
	  	 	3.30399036	% 
	 April 1, 2019
	  	 	3.30317003	% 
	 October 1, 2019
	  	 	3.30233993	% 
	 April 1, 2020
	  	 	3.28014760	% 
	 October 1, 2020
	  	 	2.40637265	% 
	 April 1, 2021
	  	 	2.40623651	% 
	 October 1, 2021
	  	 	2.40609311	% 
	 April 1, 2022
	  	 	2.40594185	% 
	 October 1, 2022
	  	 	2.40578214	% 
	 April 1, 2023
	  	 	2.40561339	% 
	 October 1, 2023
	  	 	2.40543486	% 
	 April 1, 2024
	  	 	2.40524580	% 
	 October 1, 2024
	  	 	2.40504540	% 
	 April 1, 2025
	  	 	2.40483263	% 
	 October 1, 2025
	  	 	2.40460659	% 
	 April 1, 2026
	  	 	2.40436605	% 
	 October 1, 2026
	  	 	2.40410977	% 
	 April 1, 2027
	  	 	2.40383634	% 
	 October 1, 2027
	  	 	2.40354425	% 
	 April 1, 2028
	  	 	36.78573972	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-17 

 Series B Equipment Notes 

Airbus A321-200 
 N668NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	17.61503684	% 
	 October 1, 2017
	  	 	6.60400604	% 
	 April 1, 2018
	  	 	6.60320184	% 
	 October 1, 2018
	  	 	3.30836876	% 
	 April 1, 2019
	  	 	3.30784998	% 
	 October 1, 2019
	  	 	3.30731997	% 
	 April 1, 2020
	  	 	3.29671591	% 
	 October 1, 2020
	  	 	3.29645573	% 
	 April 1, 2021
	  	 	3.29618203	% 
	 October 1, 2021
	  	 	3.29589334	% 
	 April 1, 2022
	  	 	3.29558896	% 
	 October 1, 2022
	  	 	3.29526779	% 
	 April 1, 2023
	  	 	3.29492813	% 
	 October 1, 2023
	  	 	3.29456903	% 
	 April 1, 2024
	  	 	32.88861565	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-18 

 Series A Equipment Notes 

Airbus A320-200 
 N644NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	7.17343540	% 
	 October 1, 2017
	  	 	3.25708880	% 
	 April 1, 2018
	  	 	3.25818497	% 
	 October 1, 2018
	  	 	3.25927252	% 
	 April 1, 2019
	  	 	3.26035083	% 
	 October 1, 2019
	  	 	3.26141930	% 
	 April 1, 2020
	  	 	3.29683201	% 
	 October 1, 2020
	  	 	2.41861260	% 
	 April 1, 2021
	  	 	2.41847580	% 
	 October 1, 2021
	  	 	2.41833164	% 
	 April 1, 2022
	  	 	2.41817963	% 
	 October 1, 2022
	  	 	2.41801908	% 
	 April 1, 2023
	  	 	2.41784950	% 
	 October 1, 2023
	  	 	2.41767006	% 
	 April 1, 2024
	  	 	2.41748004	% 
	 October 1, 2024
	  	 	2.41727860	% 
	 April 1, 2025
	  	 	2.41706479	% 
	 October 1, 2025
	  	 	2.41683757	% 
	 April 1, 2026
	  	 	2.41659580	% 
	 October 1, 2026
	  	 	2.41633823	% 
	 April 1, 2027
	  	 	2.41606339	% 
	 October 1, 2027
	  	 	2.41576983	% 
	 April 1, 2028
	  	 	36.97284961	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-19 

 Series B Equipment Notes 

Airbus A320-200 
 N644NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	17.56357167	% 
	 October 1, 2017
	  	 	6.58901703	% 
	 April 1, 2018
	  	 	6.58910539	% 
	 October 1, 2018
	  	 	3.28732613	% 
	 April 1, 2019
	  	 	3.28770046	% 
	 October 1, 2019
	  	 	3.28806356	% 
	 April 1, 2020
	  	 	3.30456059	% 
	 October 1, 2020
	  	 	3.30429996	% 
	 April 1, 2021
	  	 	3.30402534	% 
	 October 1, 2021
	  	 	3.30373619	% 
	 April 1, 2022
	  	 	3.30343110	% 
	 October 1, 2022
	  	 	3.30310913	% 
	 April 1, 2023
	  	 	3.30276859	% 
	 October 1, 2023
	  	 	3.30240867	% 
	 April 1, 2024
	  	 	32.96687619	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-20 

 Series A Equipment Notes 

Airbus A321-200 
 N669NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	5.40464520	% 
	 October 1, 2017
	  	 	3.18540206	% 
	 April 1, 2018
	  	 	3.19129412	% 
	 October 1, 2018
	  	 	3.19722304	% 
	 April 1, 2019
	  	 	3.20319124	% 
	 October 1, 2019
	  	 	3.20920139	% 
	 April 1, 2020
	  	 	3.36524878	% 
	 October 1, 2020
	  	 	2.46386146	% 
	 April 1, 2021
	  	 	2.46444446	% 
	 October 1, 2021
	  	 	2.46505870	% 
	 April 1, 2022
	  	 	2.46570659	% 
	 October 1, 2022
	  	 	2.46639049	% 
	 April 1, 2023
	  	 	2.46711329	% 
	 October 1, 2023
	  	 	2.46787786	% 
	 April 1, 2024
	  	 	2.46868753	% 
	 October 1, 2024
	  	 	2.46954595	% 
	 April 1, 2025
	  	 	2.47045704	% 
	 October 1, 2025
	  	 	2.47142527	% 
	 April 1, 2026
	  	 	2.47245545	% 
	 October 1, 2026
	  	 	2.47355305	% 
	 April 1, 2027
	  	 	2.47472406	% 
	 October 1, 2027
	  	 	2.47597517	% 
	 April 1, 2028
	  	 	38.20651781	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-21 

 Series B Equipment Notes 

Airbus A321-200 
 N669NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	16.17488520	% 
	 October 1, 2017
	  	 	6.64247763	% 
	 April 1, 2018
	  	 	6.64704194	% 
	 October 1, 2018
	  	 	3.27993357	% 
	 April 1, 2019
	  	 	3.28328537	% 
	 October 1, 2019
	  	 	3.28668481	% 
	 April 1, 2020
	  	 	3.36025652	% 
	 October 1, 2020
	  	 	3.36136162	% 
	 April 1, 2021
	  	 	3.36252515	% 
	 October 1, 2021
	  	 	3.36375112	% 
	 April 1, 2022
	  	 	3.36504413	% 
	 October 1, 2022
	  	 	3.36640926	% 
	 April 1, 2023
	  	 	3.36785174	% 
	 October 1, 2023
	  	 	3.36937774	% 
	 April 1, 2024
	  	 	33.76911420	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-22 

 Series A Equipment Notes 

Airbus A320-200 
 N645NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	5.23172854	% 
	 October 1, 2017
	  	 	3.13460086	% 
	 April 1, 2018
	  	 	3.14245566	% 
	 October 1, 2018
	  	 	3.15034750	% 
	 April 1, 2019
	  	 	3.15827887	% 
	 October 1, 2019
	  	 	3.16625235	% 
	 April 1, 2020
	  	 	3.38268499	% 
	 October 1, 2020
	  	 	2.47662738	% 
	 April 1, 2021
	  	 	2.47721334	% 
	 October 1, 2021
	  	 	2.47783081	% 
	 April 1, 2022
	  	 	2.47848200	% 
	 October 1, 2022
	  	 	2.47916952	% 
	 April 1, 2023
	  	 	2.47989601	% 
	 October 1, 2023
	  	 	2.48066453	% 
	 April 1, 2024
	  	 	2.48147846	% 
	 October 1, 2024
	  	 	2.48234124	% 
	 April 1, 2025
	  	 	2.48325712	% 
	 October 1, 2025
	  	 	2.48423033	% 
	 April 1, 2026
	  	 	2.48526587	% 
	 October 1, 2026
	  	 	2.48636915	% 
	 April 1, 2027
	  	 	2.48754624	% 
	 October 1, 2027
	  	 	2.48880380	% 
	 April 1, 2028
	  	 	38.40447541	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-23 

 Series B Equipment Notes 

Airbus A320-200 
 N645NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	16.12807837	% 
	 October 1, 2017
	  	 	6.62652869	% 
	 April 1, 2018
	  	 	6.63200445	% 
	 October 1, 2018
	  	 	3.25797680	% 
	 April 1, 2019
	  	 	3.26223704	% 
	 October 1, 2019
	  	 	3.26654537	% 
	 April 1, 2020
	  	 	3.36806030	% 
	 October 1, 2020
	  	 	3.36916813	% 
	 April 1, 2021
	  	 	3.37033444	% 
	 October 1, 2021
	  	 	3.37156315	% 
	 April 1, 2022
	  	 	3.37285925	% 
	 October 1, 2022
	  	 	3.37422732	% 
	 April 1, 2023
	  	 	3.37567334	% 
	 October 1, 2023
	  	 	3.37720300	% 
	 April 1, 2024
	  	 	33.84754036	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-24 

 Series A Equipment Notes 

Airbus A321-200 
 N670NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	5.23179913	% 
	 October 1, 2017
	  	 	3.13459853	% 
	 April 1, 2018
	  	 	3.14245331	% 
	 October 1, 2018
	  	 	3.15034517	% 
	 April 1, 2019
	  	 	3.15827652	% 
	 October 1, 2019
	  	 	3.16625000	% 
	 April 1, 2020
	  	 	3.38268246	% 
	 October 1, 2020
	  	 	2.47662551	% 
	 April 1, 2021
	  	 	2.47721152	% 
	 October 1, 2021
	  	 	2.47782895	% 
	 April 1, 2022
	  	 	2.47848019	% 
	 October 1, 2022
	  	 	2.47916763	% 
	 April 1, 2023
	  	 	2.47989417	% 
	 October 1, 2023
	  	 	2.48066271	% 
	 April 1, 2024
	  	 	2.48147657	% 
	 October 1, 2024
	  	 	2.48233944	% 
	 April 1, 2025
	  	 	2.48325525	% 
	 October 1, 2025
	  	 	2.48422850	% 
	 April 1, 2026
	  	 	2.48526401	% 
	 October 1, 2026
	  	 	2.48636729	% 
	 April 1, 2027
	  	 	2.48754438	% 
	 October 1, 2027
	  	 	2.48880197	% 
	 April 1, 2028
	  	 	38.40444679	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-25 

 Series B Equipment Notes 

Airbus A321-200 
 N670NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	16.12923281	% 
	 October 1, 2017
	  	 	6.62643755	% 
	 April 1, 2018
	  	 	6.63191312	% 
	 October 1, 2018
	  	 	3.25793196	% 
	 April 1, 2019
	  	 	3.26219222	% 
	 October 1, 2019
	  	 	3.26650024	% 
	 April 1, 2020
	  	 	3.36801409	% 
	 October 1, 2020
	  	 	3.36912175	% 
	 April 1, 2021
	  	 	3.37028797	% 
	 October 1, 2021
	  	 	3.37151677	% 
	 April 1, 2022
	  	 	3.37281276	% 
	 October 1, 2022
	  	 	3.37418104	% 
	 April 1, 2023
	  	 	3.37562685	% 
	 October 1, 2023
	  	 	3.37715638	% 
	 April 1, 2024
	  	 	33.84707448	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-26 

 Series A Equipment Notes 

Airbus A321-200 
 N671NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	4.88769061	% 
	 October 1, 2017
	  	 	3.03117231	% 
	 April 1, 2018
	  	 	3.04301335	% 
	 October 1, 2018
	  	 	3.05489185	% 
	 April 1, 2019
	  	 	3.06681027	% 
	 October 1, 2019
	  	 	3.07877117	% 
	 April 1, 2020
	  	 	3.41784540	% 
	 October 1, 2020
	  	 	2.50237001	% 
	 April 1, 2021
	  	 	2.50296208	% 
	 October 1, 2021
	  	 	2.50358594	% 
	 April 1, 2022
	  	 	2.50424395	% 
	 October 1, 2022
	  	 	2.50493859	% 
	 April 1, 2023
	  	 	2.50567264	% 
	 October 1, 2023
	  	 	2.50644916	% 
	 April 1, 2024
	  	 	2.50727150	% 
	 October 1, 2024
	  	 	2.50814328	% 
	 April 1, 2025
	  	 	2.50906865	% 
	 October 1, 2025
	  	 	2.51005202	% 
	 April 1, 2026
	  	 	2.51109831	% 
	 October 1, 2026
	  	 	2.51221305	% 
	 April 1, 2027
	  	 	2.51340235	% 
	 October 1, 2027
	  	 	2.51467303	% 
	 April 1, 2028
	  	 	38.80366047	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-27 

 Series B Equipment Notes 

Airbus A321-200 
 N671NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	16.02094246	% 
	 October 1, 2017
	  	 	6.59541813	% 
	 April 1, 2018
	  	 	6.60273029	% 
	 October 1, 2018
	  	 	3.21424842	% 
	 April 1, 2019
	  	 	3.22033929	% 
	 October 1, 2019
	  	 	3.22647859	% 
	 April 1, 2020
	  	 	3.38429611	% 
	 October 1, 2020
	  	 	3.38540912	% 
	 April 1, 2021
	  	 	3.38658090	% 
	 October 1, 2021
	  	 	3.38781582	% 
	 April 1, 2022
	  	 	3.38911800	% 
	 October 1, 2022
	  	 	3.39049270	% 
	 April 1, 2023
	  	 	3.39194574	% 
	 October 1, 2023
	  	 	3.39348260	% 
	 April 1, 2024
	  	 	34.01070182	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-28 

 Series A Equipment Notes 

Airbus A320-200 
 N646NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	4.71030343	% 
	 October 1, 2017
	  	 	2.97873107	% 
	 April 1, 2018
	  	 	2.99259686	% 
	 October 1, 2018
	  	 	3.00650028	% 
	 April 1, 2019
	  	 	3.02044385	% 
	 October 1, 2019
	  	 	3.03443017	% 
	 April 1, 2020
	  	 	3.43579749	% 
	 October 1, 2020
	  	 	2.51551363	% 
	 April 1, 2021
	  	 	2.51610876	% 
	 October 1, 2021
	  	 	2.51673597	% 
	 April 1, 2022
	  	 	2.51739737	% 
	 October 1, 2022
	  	 	2.51809564	% 
	 April 1, 2023
	  	 	2.51883360	% 
	 October 1, 2023
	  	 	2.51961417	% 
	 April 1, 2024
	  	 	2.52044083	% 
	 October 1, 2024
	  	 	2.52131722	% 
	 April 1, 2025
	  	 	2.52224745	% 
	 October 1, 2025
	  	 	2.52323591	% 
	 April 1, 2026
	  	 	2.52428774	% 
	 October 1, 2026
	  	 	2.52540838	% 
	 April 1, 2027
	  	 	2.52660388	% 
	 October 1, 2027
	  	 	2.52788125	% 
	 April 1, 2028
	  	 	39.00747506	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-29 

 Series B Equipment Notes 

Airbus A320-200 
 N646NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	15.96973275	% 
	 October 1, 2017
	  	 	6.57953492	% 
	 April 1, 2018
	  	 	6.58777178	% 
	 October 1, 2018
	  	 	3.19212143	% 
	 April 1, 2019
	  	 	3.19913425	% 
	 October 1, 2019
	  	 	3.20619518	% 
	 April 1, 2020
	  	 	3.39236191	% 
	 October 1, 2020
	  	 	3.39347749	% 
	 April 1, 2021
	  	 	3.39465231	% 
	 October 1, 2021
	  	 	3.39588973	% 
	 April 1, 2022
	  	 	3.39719532	% 
	 October 1, 2022
	  	 	3.39857354	% 
	 April 1, 2023
	  	 	3.40002956	% 
	 October 1, 2023
	  	 	3.40157033	% 
	 April 1, 2024
	  	 	34.09175951	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-30 

 Series A Equipment Notes 

Airbus A321-200 
 N672NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	4.71121393	% 
	 October 1, 2017
	  	 	2.97870258	% 
	 April 1, 2018
	  	 	2.99256827	% 
	 October 1, 2018
	  	 	3.00647156	% 
	 April 1, 2019
	  	 	3.02041498	% 
	 October 1, 2019
	  	 	3.03440119	% 
	 April 1, 2020
	  	 	3.43576467	% 
	 October 1, 2020
	  	 	2.51548956	% 
	 April 1, 2021
	  	 	2.51608474	% 
	 October 1, 2021
	  	 	2.51671187	% 
	 April 1, 2022
	  	 	2.51737333	% 
	 October 1, 2022
	  	 	2.51807162	% 
	 April 1, 2023
	  	 	2.51880951	% 
	 October 1, 2023
	  	 	2.51959010	% 
	 April 1, 2024
	  	 	2.52041676	% 
	 October 1, 2024
	  	 	2.52129311	% 
	 April 1, 2025
	  	 	2.52222333	% 
	 October 1, 2025
	  	 	2.52321186	% 
	 April 1, 2026
	  	 	2.52426363	% 
	 October 1, 2026
	  	 	2.52538421	% 
	 April 1, 2027
	  	 	2.52657975	% 
	 October 1, 2027
	  	 	2.52785709	% 
	 April 1, 2028
	  	 	39.00710235	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-31 

 Series B Equipment Notes 

Airbus A321-200 
 N672NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2016
	  	 	0.00000000	% 
	 October 1, 2016
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	15.96506122	% 
	 October 1, 2017
	  	 	6.57990085	% 
	 April 1, 2018
	  	 	6.58813805	% 
	 October 1, 2018
	  	 	3.19229890	% 
	 April 1, 2019
	  	 	3.19931195	% 
	 October 1, 2019
	  	 	3.20637341	% 
	 April 1, 2020
	  	 	3.39255049	% 
	 October 1, 2020
	  	 	3.39366622	% 
	 April 1, 2021
	  	 	3.39484085	% 
	 October 1, 2021
	  	 	3.39607878	% 
	 April 1, 2022
	  	 	3.39738415	% 
	 October 1, 2022
	  	 	3.39876220	% 
	 April 1, 2023
	  	 	3.40021878	% 
	 October 1, 2023
	  	 	3.40175939	% 
	 April 1, 2024
	  	 	34.09365476	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-32 

 ADJUSTED AMORTIZATION SCHEDULES – EARLY DELIVERY AIRCRAFT2 
 Series A Equipment Notes 

Airbus A321-200 
 N660NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.89521155	% 
	 October 1, 2017
	  	 	3.91471603	% 
	 April 1, 2018
	  	 	3.89897055	% 
	 October 1, 2018
	  	 	3.88316899	% 
	 April 1, 2019
	  	 	3.86730716	% 
	 October 1, 2019
	  	 	3.85138166	% 
	 April 1, 2020
	  	 	3.41171712	% 
	 October 1, 2020
	  	 	2.50801081	% 
	 April 1, 2021
	  	 	2.50712123	% 
	 October 1, 2021
	  	 	2.50618383	% 
	 April 1, 2022
	  	 	2.50519521	% 
	 October 1, 2022
	  	 	2.50415164	% 
	 April 1, 2023
	  	 	2.50304857	% 
	 October 1, 2023
	  	 	2.50188200	% 
	 April 1, 2024
	  	 	2.50064637	% 
	 October 1, 2024
	  	 	2.49933662	% 
	 April 1, 2025
	  	 	2.49794621	% 
	 October 1, 2025
	  	 	2.49646865	% 
	 April 1, 2026
	  	 	2.49489666	% 
	 October 1, 2026
	  	 	2.49322186	% 
	 April 1, 2027
	  	 	2.49143494	% 
	 October 1, 2027
	  	 	2.48952561	% 
	 April 1, 2028
	  	 	37.77845672	% 

  

	2 	These are the adjusted amortization schedules for any Early Delivery Aircraft whose Equipment Notes are issued on or after October 1, 2016. There will be no adjustments for amortization schedules for any Aircraft
that is not an Early Delivery Aircraft. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-33 

 Series B Equipment Notes 

Airbus A321-200 
 N660NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	3.16730704	% 
	 October 1, 2017
	  	 	7.93906895	% 
	 April 1, 2018
	  	 	7.92761951	% 
	 October 1, 2018
	  	 	4.09411425	% 
	 April 1, 2019
	  	 	4.08475854	% 
	 October 1, 2019
	  	 	4.07531902	% 
	 April 1, 2020
	  	 	3.84175878	% 
	 October 1, 2020
	  	 	3.83985231	% 
	 April 1, 2021
	  	 	3.83784425	% 
	 October 1, 2021
	  	 	3.83572770	% 
	 April 1, 2022
	  	 	3.83349621	% 
	 October 1, 2022
	  	 	3.83113989	% 
	 April 1, 2023
	  	 	3.82865039	% 
	 October 1, 2023
	  	 	3.82601626	% 
	 April 1, 2024
	  	 	38.03732689	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-34 

 Series A Equipment Notes 

Airbus A321-200 
 N661NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.83297536	% 
	 October 1, 2017
	  	 	3.86230327	% 
	 April 1, 2018
	  	 	3.84849438	% 
	 October 1, 2018
	  	 	3.83462899	% 
	 April 1, 2019
	  	 	3.82070346	% 
	 October 1, 2019
	  	 	3.80671368	% 
	 April 1, 2020
	  	 	3.42493812	% 
	 October 1, 2020
	  	 	2.51772986	% 
	 April 1, 2021
	  	 	2.51683684	% 
	 October 1, 2021
	  	 	2.51589584	% 
	 April 1, 2022
	  	 	2.51490339	% 
	 October 1, 2022
	  	 	2.51385567	% 
	 April 1, 2023
	  	 	2.51274850	% 
	 October 1, 2023
	  	 	2.51157724	% 
	 April 1, 2024
	  	 	2.51033692	% 
	 October 1, 2024
	  	 	2.50902196	% 
	 April 1, 2025
	  	 	2.50762626	% 
	 October 1, 2025
	  	 	2.50614305	% 
	 April 1, 2026
	  	 	2.50456493	% 
	 October 1, 2026
	  	 	2.50288350	% 
	 April 1, 2027
	  	 	2.50108969	% 
	 October 1, 2027
	  	 	2.49917313	% 
	 April 1, 2028
	  	 	37.92485596	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-35 

 Series B Equipment Notes 

Airbus A321-200 
 N661NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	3.13705926	% 
	 October 1, 2017
	  	 	7.91963598	% 
	 April 1, 2018
	  	 	7.90921723	% 
	 October 1, 2018
	  	 	4.06892582	% 
	 April 1, 2019
	  	 	4.06060407	% 
	 October 1, 2019
	  	 	4.05219979	% 
	 April 1, 2020
	  	 	3.84961780	% 
	 October 1, 2020
	  	 	3.84770628	% 
	 April 1, 2021
	  	 	3.84569382	% 
	 October 1, 2021
	  	 	3.84357352	% 
	 April 1, 2022
	  	 	3.84133718	% 
	 October 1, 2022
	  	 	3.83897618	% 
	 April 1, 2023
	  	 	3.83648131	% 
	 October 1, 2023
	  	 	3.83384193	% 
	 April 1, 2024
	  	 	38.11512981	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-36 

 Series A Equipment Notes 

Airbus A321-200 
 N662NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.77025487	% 
	 October 1, 2017
	  	 	3.80948278	% 
	 April 1, 2018
	  	 	3.79762544	% 
	 October 1, 2018
	  	 	3.78571142	% 
	 April 1, 2019
	  	 	3.77373699	% 
	 October 1, 2019
	  	 	3.76169813	% 
	 April 1, 2020
	  	 	3.43826209	% 
	 October 1, 2020
	  	 	2.52752454	% 
	 April 1, 2021
	  	 	2.52662804	% 
	 October 1, 2021
	  	 	2.52568338	% 
	 April 1, 2022
	  	 	2.52468707	% 
	 October 1, 2022
	  	 	2.52363527	% 
	 April 1, 2023
	  	 	2.52252379	% 
	 October 1, 2023
	  	 	2.52134798	% 
	 April 1, 2024
	  	 	2.52010283	% 
	 October 1, 2024
	  	 	2.51878276	% 
	 April 1, 2025
	  	 	2.51738163	% 
	 October 1, 2025
	  	 	2.51589264	% 
	 April 1, 2026
	  	 	2.51430839	% 
	 October 1, 2026
	  	 	2.51262042	% 
	 April 1, 2027
	  	 	2.51081963	% 
	 October 1, 2027
	  	 	2.50889562	% 
	 April 1, 2028
	  	 	38.07239429	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-37 

 Series B Equipment Notes 

Airbus A321-200 
 N662NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	3.10668763	% 
	 October 1, 2017
	  	 	7.90012319	% 
	 April 1, 2018
	  	 	7.89073950	% 
	 October 1, 2018
	  	 	4.04363369	% 
	 April 1, 2019
	  	 	4.03635130	% 
	 October 1, 2019
	  	 	4.02898621	% 
	 April 1, 2020
	  	 	3.85750803	% 
	 October 1, 2020
	  	 	3.85559259	% 
	 April 1, 2021
	  	 	3.85357600	% 
	 October 1, 2021
	  	 	3.85145136	% 
	 April 1, 2022
	  	 	3.84921043	% 
	 October 1, 2022
	  	 	3.84684459	% 
	 April 1, 2023
	  	 	3.84434461	% 
	 October 1, 2023
	  	 	3.84169982	% 
	 April 1, 2024
	  	 	38.19325104	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-38 

 Series A Equipment Notes 

Airbus A321-200 
 N663NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.61981257	% 
	 October 1, 2017
	  	 	3.68012191	% 
	 April 1, 2018
	  	 	3.67330751	% 
	 October 1, 2018
	  	 	3.66648402	% 
	 April 1, 2019
	  	 	3.65965092	% 
	 October 1, 2019
	  	 	3.65280751	% 
	 April 1, 2020
	  	 	3.44836460	% 
	 October 1, 2020
	  	 	2.52977954	% 
	 April 1, 2021
	  	 	2.52963645	% 
	 October 1, 2021
	  	 	2.52948568	% 
	 April 1, 2022
	  	 	2.52932663	% 
	 October 1, 2022
	  	 	2.52915876	% 
	 April 1, 2023
	  	 	2.52898135	% 
	 October 1, 2023
	  	 	2.52879367	% 
	 April 1, 2024
	  	 	2.52859493	% 
	 October 1, 2024
	  	 	2.52838419	% 
	 April 1, 2025
	  	 	2.52816057	% 
	 October 1, 2025
	  	 	2.52792293	% 
	 April 1, 2026
	  	 	2.52767003	% 
	 October 1, 2026
	  	 	2.52740061	% 
	 April 1, 2027
	  	 	2.52711317	% 
	 October 1, 2027
	  	 	2.52680609	% 
	 April 1, 2028
	  	 	38.67223636	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-39 

 Series B Equipment Notes 

Airbus A321-200 
 N663NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	3.02237856	% 
	 October 1, 2017
	  	 	7.84074658	% 
	 April 1, 2018
	  	 	7.83667065	% 
	 October 1, 2018
	  	 	3.97536113	% 
	 April 1, 2019
	  	 	3.97161950	% 
	 October 1, 2019
	  	 	3.96786467	% 
	 April 1, 2020
	  	 	3.86038057	% 
	 October 1, 2020
	  	 	3.86007579	% 
	 April 1, 2021
	  	 	3.85975498	% 
	 October 1, 2021
	  	 	3.85941727	% 
	 April 1, 2022
	  	 	3.85906082	% 
	 October 1, 2022
	  	 	3.85868464	% 
	 April 1, 2023
	  	 	3.85828703	% 
	 October 1, 2023
	  	 	3.85786642	% 
	 April 1, 2024
	  	 	38.51183139	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-40 

 Series A Equipment Notes 

Airbus A321-200 
 N664NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.55558965	% 
	 October 1, 2017
	  	 	3.62600691	% 
	 April 1, 2018
	  	 	3.62116376	% 
	 October 1, 2018
	  	 	3.61631149	% 
	 April 1, 2019
	  	 	3.61144958	% 
	 October 1, 2019
	  	 	3.60657731	% 
	 April 1, 2020
	  	 	3.46193811	% 
	 October 1, 2020
	  	 	2.53973731	% 
	 April 1, 2021
	  	 	2.53959365	% 
	 October 1, 2021
	  	 	2.53944229	% 
	 April 1, 2022
	  	 	2.53928261	% 
	 October 1, 2022
	  	 	2.53911408	% 
	 April 1, 2023
	  	 	2.53893597	% 
	 October 1, 2023
	  	 	2.53874755	% 
	 April 1, 2024
	  	 	2.53854803	% 
	 October 1, 2024
	  	 	2.53833646	% 
	 April 1, 2025
	  	 	2.53811197	% 
	 October 1, 2025
	  	 	2.53787339	% 
	 April 1, 2026
	  	 	2.53761950	% 
	 October 1, 2026
	  	 	2.53734901	% 
	 April 1, 2027
	  	 	2.53706044	% 
	 October 1, 2027
	  	 	2.53675215	% 
	 April 1, 2028
	  	 	38.82445877	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-41 

 Series B Equipment Notes 

Airbus A321-200 
 N664NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	2.99162295	% 
	 October 1, 2017
	  	 	7.82097452	% 
	 April 1, 2018
	  	 	7.81793726	% 
	 October 1, 2018
	  	 	3.94971138	% 
	 April 1, 2019
	  	 	3.94700883	% 
	 October 1, 2019
	  	 	3.94429319	% 
	 April 1, 2020
	  	 	3.86834181	% 
	 October 1, 2020
	  	 	3.86803640	% 
	 April 1, 2021
	  	 	3.86771492	% 
	 October 1, 2021
	  	 	3.86737652	% 
	 April 1, 2022
	  	 	3.86701934	% 
	 October 1, 2022
	  	 	3.86664238	% 
	 April 1, 2023
	  	 	3.86624395	% 
	 October 1, 2023
	  	 	3.86582247	% 
	 April 1, 2024
	  	 	38.59125408	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-42 

 Series A Equipment Notes 

Airbus A321-200 
 N665NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.55558965	% 
	 October 1, 2017
	  	 	3.62600691	% 
	 April 1, 2018
	  	 	3.62116376	% 
	 October 1, 2018
	  	 	3.61631149	% 
	 April 1, 2019
	  	 	3.61144958	% 
	 October 1, 2019
	  	 	3.60657731	% 
	 April 1, 2020
	  	 	3.46193811	% 
	 October 1, 2020
	  	 	2.53973731	% 
	 April 1, 2021
	  	 	2.53959365	% 
	 October 1, 2021
	  	 	2.53944229	% 
	 April 1, 2022
	  	 	2.53928261	% 
	 October 1, 2022
	  	 	2.53911408	% 
	 April 1, 2023
	  	 	2.53893597	% 
	 October 1, 2023
	  	 	2.53874755	% 
	 April 1, 2024
	  	 	2.53854803	% 
	 October 1, 2024
	  	 	2.53833646	% 
	 April 1, 2025
	  	 	2.53811197	% 
	 October 1, 2025
	  	 	2.53787339	% 
	 April 1, 2026
	  	 	2.53761950	% 
	 October 1, 2026
	  	 	2.53734901	% 
	 April 1, 2027
	  	 	2.53706044	% 
	 October 1, 2027
	  	 	2.53675215	% 
	 April 1, 2028
	  	 	38.82445877	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-43 

 Series B Equipment Notes 

Airbus A321-200 
 N665NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	2.99162295	% 
	 October 1, 2017
	  	 	7.82097452	% 
	 April 1, 2018
	  	 	7.81793726	% 
	 October 1, 2018
	  	 	3.94971138	% 
	 April 1, 2019
	  	 	3.94700883	% 
	 October 1, 2019
	  	 	3.94429319	% 
	 April 1, 2020
	  	 	3.86834181	% 
	 October 1, 2020
	  	 	3.86803640	% 
	 April 1, 2021
	  	 	3.86771492	% 
	 October 1, 2021
	  	 	3.86737652	% 
	 April 1, 2022
	  	 	3.86701934	% 
	 October 1, 2022
	  	 	3.86664238	% 
	 April 1, 2023
	  	 	3.86624395	% 
	 October 1, 2023
	  	 	3.86582247	% 
	 April 1, 2024
	  	 	38.59125408	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-44 

 Series A Equipment Notes 

Airbus A321-200 
 N667NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	1.49085911	% 
	 October 1, 2017
	  	 	3.57146420	% 
	 April 1, 2018
	  	 	3.56860790	% 
	 October 1, 2018
	  	 	3.56574240	% 
	 April 1, 2019
	  	 	3.56286729	% 
	 October 1, 2019
	  	 	3.55998172	% 
	 April 1, 2020
	  	 	3.47561894	% 
	 October 1, 2020
	  	 	2.54977378	% 
	 April 1, 2021
	  	 	2.54962953	% 
	 October 1, 2021
	  	 	2.54947758	% 
	 April 1, 2022
	  	 	2.54931731	% 
	 October 1, 2022
	  	 	2.54914808	% 
	 April 1, 2023
	  	 	2.54896927	% 
	 October 1, 2023
	  	 	2.54878011	% 
	 April 1, 2024
	  	 	2.54857978	% 
	 October 1, 2024
	  	 	2.54836744	% 
	 April 1, 2025
	  	 	2.54814199	% 
	 October 1, 2025
	  	 	2.54790248	% 
	 April 1, 2026
	  	 	2.54764760	% 
	 October 1, 2026
	  	 	2.54737605	% 
	 April 1, 2027
	  	 	2.54708633	% 
	 October 1, 2027
	  	 	2.54677683	% 
	 April 1, 2028
	  	 	38.97788428	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-45 

 Series B Equipment Notes 

Airbus A321-200 
 N667NK

  

					
	 Payment Date
	  	Percentage of Original
Principal Amount to be
Paid	 
	 At Issuance
	  	 	0.00000000	% 
	 April 1, 2017
	  	 	2.96074034	% 
	 October 1, 2017
	  	 	7.80112094	% 
	 April 1, 2018
	  	 	7.79912621	% 
	 October 1, 2018
	  	 	3.92395574	% 
	 April 1, 2019
	  	 	3.92229633	% 
	 October 1, 2019
	  	 	3.92062428	% 
	 April 1, 2020
	  	 	3.87633578	% 
	 October 1, 2020
	  	 	3.87602986	% 
	 April 1, 2021
	  	 	3.87570803	% 
	 October 1, 2021
	  	 	3.87536859	% 
	 April 1, 2022
	  	 	3.87501069	% 
	 October 1, 2022
	  	 	3.87463305	% 
	 April 1, 2023
	  	 	3.87423368	% 
	 October 1, 2023
	  	 	3.87381144	% 
	 April 1, 2024
	  	 	38.67100505	% 
	 October 1, 2024
	  	 	0.00000000	% 
	 April 1, 2025
	  	 	0.00000000	% 
	 October 1, 2025
	  	 	0.00000000	% 
	 April 1, 2026
	  	 	0.00000000	% 
	 October 1, 2026
	  	 	0.00000000	% 
	 April 1, 2027
	  	 	0.00000000	% 
	 October 1, 2027
	  	 	0.00000000	% 
	 April 1, 2028
	  	 	0.00000000	% 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-46 

 Indenture for Each Aircraft 

Debt Rate (as such term is defined in clause (i) of the definition of “Debt Rate” in the form of Indenture and Security Agreement included as
Exhibit C to the Note Purchase Agreement (as such form may be amended, supplemented or otherwise modified from time to time in accordance with the terms of the Note Purchase Agreement, the “Indenture Form”))
(x) for Series A (computed on the basis of a 360-day year consisting of twelve 30-day months, payable semi-annually in arrears): 4.100% and (y) for Series B (computed on the basis of a 360-day year consisting of twelve 30-day
months, payable semi-annually in arrears): 4.450%. 
  

					
	Past Due Rate:	  	The lesser of (a) with respect to (i) any payment made to a Noteholder (as such term is defined in the Indenture Form) under any Series of Equipment Notes relating to the applicable Aircraft, the Debt Rate
then applicable to such Series plus 1% and (ii) any other payment made under any Operative Document (as such term is defined in the Indenture Form) to any other Person, the Debt Rate (as such term is defined in clause (ii) of the definition
of “Debt Rate” in the Indenture Form) plus 1% (computed on the basis of a year of 360 days comprised of twelve 30-day months) and (b) the maximum rate permitted by applicable law.
		
	Payment Dates:	  	April 1 and October 1 commencing with the first such date occurring after the date of issuance of the Equipment Notes relating to such Aircraft.
		
	Make-Whole Amount:	  	As provided in Article II of the Indenture Form.
		
	Redemption:	  	As provided in Article II of the Indenture Form.
		
	All-risk hull insurance:	  	Not less than 110% of the unpaid principal amount of the Equipment Notes relating to such Aircraft, subject to the Company’s right to self-insure on terms no more favorable to the Company in any material respect
than those set forth in Section 7.06 of the Indenture Form.

 Participation Agreement for Each Aircraft 

The applicable Loan Trustee, the Subordination Agent, the Liquidity Providers, the Pass Through Trustees and the Escrow Agent shall be indemnified against
Claims (as such term is defined in the Participation Agreement Form referred to below) to the extent set forth in Section 4.02 of the form of the Participation Agreement included as Exhibit B to this Note Purchase Agreement (as
such form may be amended, supplemented or otherwise modified from time to time in accordance with the terms of the Note Purchase Agreement, the “Participation Agreement Form”). 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-47 

 Prohibited Modifications 
  

	1.	The parties may not modify in any material adverse respect the Granting Clause of the Indenture Form so as to deprive the Noteholders or the Related Noteholders (as defined in the Indenture Form) of a first priority
security interest in and mortgage lien on the Aircraft (as defined in the Indenture Form) or, to the extent assigned thereunder, the Warranty Rights (as defined in the Indenture Form) or to eliminate any of the obligations intended to be secured
thereby, or otherwise modify in any material adverse respect as regards the interests of the Noteholders, the Subordination Agent, the Liquidity Providers or the Loan Trustee (as defined in the Indenture Form) the provisions of Article II or
Article III, or Sections 7.05(a) or 7.05(b) (insofar as such Sections relate to conditions to “Airframe” and “Engine” replacements), or Sections 4.01, 4.02, 5.02, 9.02,
10.04, 10.11, 10.12 or 10.15 of the Indenture Form or the provisions of the proviso to the second full sentence of Section 7.02(e) of the Indenture Form as regards the rights of the Loan Trustee (as defined in
the Indenture Form) thereunder or the definition of “Make-Whole Amount” in Annex A to the Indenture Form. 

  

	2.	The parties may not modify in any material adverse respect as regards the interests of the Noteholders, the Subordination Agent, the Liquidity Providers or the Loan Trustee (as defined in the Participation Agreement
Form) the provisions of Sections 3.01(d), 3.01(f)(i), 3.01(r), 4.01(g), 4.01(h), 6.01(e), 6.01(f), 6.02(b), 6.02(c), 6.02(f), 7.03, 7.08 or 7.12 of the
Participation Agreement Form, or the first sentence of Section 6.02(c) of the Participation Agreement Form, or the provisions of Sections 3.01(g), (h) or (i) of the Participation Agreement Form so as to
eliminate the requirement to deliver to the Noteholders or the Loan Trustee (as defined in the Participation Agreement Form), as the case may be, the legal opinions to be provided to such Persons thereunder (recognizing that the lawyers rendering
such opinions may be changed) or otherwise modify the terms of the Participation Agreement Form to deprive the Pass Through Trustees, the Subordination Agent, the Liquidity Providers or the Loan Trustee (as defined in the Participation Agreement
Form) of any indemnity, or right of reimbursement, for Claims in its favor. 

  

	3.	 Nothing in the two immediately preceding paragraphs shall prohibit any modification of the Indenture Form or the Participation Agreement Form to give
effect to (a) the adjustment to original principal amount and amortization schedule for any Early Delivery Aircraft financed on or after October 1, 2016, as contemplated by the Note Purchase Agreement, (b) the redemption of any Series
B Equipment Notes (or any series of Additional Series Equipment Notes) with respect to all of the Aircraft for which Series B Equipment Notes (or such series of Additional Series Equipment Notes) are at the time outstanding and issuance, with
respect to any or all of the Aircraft, of new Equipment Notes with the same series designation as, but with terms that may be the same as or different from those of, the redeemed Equipment Notes, (c) the issuance of one or more series of
Additional Series Equipment Notes with respect to any or all of the Aircraft, or (d) following the payment in full of Series B Equipment Notes (or any series of Additional Series Equipment Notes) with respect to all of the Aircraft for which
Series B 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-48 

	 	
Equipment Notes (or such series of Additional Series Equipment Notes) are at the time outstanding, the issuance, with respect to any or all of the Aircraft, of new Equipment Notes with the same
series designation as, but with terms that may be the same as or different from those of, such Equipment Notes that have been paid in full, or the issuance of pass through certificates by any pass through trust that acquires any such new Series B
Equipment Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes, as applicable, or to provide for any credit support for any pass through certificates relating to any such new Series B Equipment Notes or Additional
Series Equipment Notes or new Additional Series Equipment Notes, as applicable, in each case, as provided in Section 4(a)(v) of the Note Purchase Agreement. 

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 Sch. III-49 

 ANNEX A to 

NOTE PURCHASE AGREEMENT 

DEFINITIONS 

(a) Certain Rules of Construction. Unless the context otherwise requires, the following rules of construction shall
apply for all purposes of the Note Purchase Agreement (including this Annex A). 
 (i) Singular and Plural. The
definitions stated in this Annex A apply equally to both the singular and the plural forms of the terms defined. 

(ii) References to Parts. All references in the Note Purchase Agreement to designated “Sections”,
“Subsections”, “Schedules”, “Exhibits”, “Annexes” and other subdivisions are to the designated Section, Subsection, Schedule, Exhibit, Annex or other subdivision of the Note Purchase Agreement, unless
otherwise specifically stated. 
 (iii) Reference to the Whole. The words “herein”, “hereof” and
“hereunder” and other words of similar import refer to the Note Purchase Agreement as a whole and not to any particular Section, Subsection, Schedule, Exhibit, Annex or other subdivision. 

(iv) Reference to Government. All references in the Note Purchase Agreement to a “government” are to such
government and any instrumentality or agency thereof. 
 (v) Including Without Limitation. Unless the context
otherwise requires, whenever the words “including”, “include” or “includes” are used herein, they shall be deemed to be followed by the phrase “without limitation”. 

(vi) Notice and Notify. Whenever the words “notice” or “notify” or similar words are used herein,
they mean the provision of formal notice as set forth in Section 6 of the Note Purchase Agreement. 
 (vii)
Reference to Persons. All references in the Note Purchase Agreement to a Person shall include successors and permitted assigns of such Person. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-1 

 (b) Definitions. 

“Additional Series Equipment Notes” means Equipment Notes of each series issued under an Indenture and designated other than
as “Series A” or “Series B” issued thereunder, if any, in the principal amount and maturities and bearing interest as specified in Schedule I to such Indenture amended at the time of original issuance of such Additional Series
Equipment Notes under the heading for such series. 
 “Additional Series Pass Through Certificates” means the pass through
certificates, if any, issued pursuant to any Additional Series Pass Through Trust Agreement. 
 “Additional Series Pass Through
Trust” means a grantor trust, if any, created to facilitate the issuance and sale of pass through certificates in connection with the issuance of any Additional Series Equipment Notes. 

“Additional Series Pass Through Trust Agreement” means a Trust Supplement entered into in connection with the creation of an
Additional Series Pass Through Trust, together with the Basic Pass Through Trust Agreement, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Additional Series Pass Through Trustee” means, with respect to any Additional Series Pass Through Trust, the trustee under
the Additional Series Pass Through Trust Agreement for such Additional Series Pass Through Trust, in its capacity as pass through trustee thereunder. 

“Aircraft” has the meaning set forth in the third recital to the Note Purchase Agreement. 

“Aircraft Purchase Agreement” means the A320 Family Purchase Agreement, dated May 5, 2004, between the Manufacturer and
the Company, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Amortization Withdrawal”, with respect to each Class of Certificates, has the meaning set forth in
Section 2.3(b) of the related Deposit Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-2 

 “Bankruptcy Code” means the United States Bankruptcy Code, 11 United States Code
§§101 et seq., as amended from time to time, or any successor statutes thereto. 
 “Basic Pass Through Trust
Agreement” means that certain Pass Through Trust Agreement, dated as of August 11, 2015, between the Company 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 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, if different from the foregoing, the city and state in which any Loan Trustee, any Pass Through Trustee or the Subordination Agent
maintains its Corporate Trust Office or receives and disburses funds. 
 “Certificated Air Carrier” means an air carrier
holding an air carrier operating certificate issued by the Secretary of Transportation pursuant to Chapter 447 of Title 49 of the United States Code for aircraft capable of carrying ten or more individuals or 6,000 pounds or more of cargo or that
otherwise is certified or registered to the extent required to fall within the purview of Section 1110. 

“Certificates” has the meaning set forth in the fourth recital to the Note Purchase Agreement. 

“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. 
 “Class”
means the class of Certificates issued by a Pass Through Trust. 
 “Class A Certificates” means the Certificates issued by
the Class A Pass Through Trust. 
 “Class A Liquidity Facility” has the meaning set forth in the Intercreditor
Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-3 

 “Class A Liquidity Provider” has the meaning set forth in the Intercreditor
Agreement. 
 “Class A Pass Through Trust” has the meaning set forth in the fourth recital to the Note Purchase Agreement.

 “Class A Pass Through Trustee” has the meaning set forth in the fifth recital to the Note Purchase Agreement. 

“Class B Certificates” means the Certificates issued by the Class B Pass Through Trust. 

“Class B Liquidity Facility” has the meaning set forth in the Intercreditor Agreement. 

“Class B Liquidity Provider” has the meaning set forth in the Intercreditor Agreement. 

“Class B Pass Through Trust” has the meaning set forth in the fourth recital to the Note Purchase Agreement. 

“Class B Pass Through Trustee” has the meaning set forth in the fifth recital to the Note Purchase Agreement. 

“Company” has the meaning set forth in the first paragraph of the Note Purchase Agreement. 

“Corporate Trust Office” has the meaning set forth in Section 1.01 of the Intercreditor Agreement. 

“Cut-Off Date” means the earlier of: 

(a) the day after the Delivery Period Termination Date; and 

(b) the date on which a Triggering Event occurs. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-4 

 “Delivery Period Termination Date” means the earlier of: 

(a) March 31, 2017; and 

(b) the date on which Equipment Notes issued with respect to all of the Aircraft have been purchased by the Pass Through
Trustees in accordance with the Note Purchase Agreement. 
 “Deposit Agreements” has the meaning set forth in the sixth
recital to the Note Purchase Agreement, subject to Section 5(f) of the Note Purchase Agreement. 
 “Depositary”
means, subject to Section 5(f) of the Note Purchase Agreement, Natixis, acting via its New York Branch. 
 “Depositary
Threshold Rating” has the meaning set forth in Section 5(a) of the Note Purchase Agreement. 

“Deposits” has the meaning set forth in the sixth recital to the Note Purchase Agreement. 

“Early Delivery Aircraft” has the meaning set forth in the second recital to the Note Purchase Agreement. 

“Eligible Aircraft” has the meaning set forth in the second recital to the Note Purchase Agreement. 

“Equipment Notes” means and includes any equipment notes issued under any Indenture in the form specified in
Section 2.01 thereof (as such form may be varied pursuant to the terms of the Note Purchase Agreement and of such Indenture) and any Equipment Note issued under any such Indenture in exchange for or replacement of any other Equipment
Note. 
 “Escrow Agent” has the meaning set forth in the first paragraph of the Note Purchase Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-5 

 “Escrow Agent Agreements” has the meaning set forth in
Section 3(e)(i) of the Note Purchase Agreement. 
 “Escrow and Paying Agent Agreements” has the meaning set
forth in the sixth recital to the Note Purchase Agreement. 
 “FAA” means the United States Federal Aviation Administration
and any agency or instrumentality of the United States government succeeding to its functions. 
 “Financing Agreements”
means, collectively, with respect to any Aircraft, the Participation Agreement, the Indenture and the Equipment Notes issued under such Indenture, in each case relating to such Aircraft. 

“Fitch” means Fitch Ratings, Inc. 

“Funding Date” has the meaning set forth in Section 1(b) of the Note Purchase Agreement. 

“Funding Notice” has the meaning set forth in Section 1(b) of the Note Purchase Agreement. 

“Government Entity” means (a) any federal, state, provincial or similar government, and any body, board,
department, commission, court, tribunal, authority, agency or other instrumentality of any such government or otherwise exercising any executive, legislative, judicial, administrative or regulatory functions of such government or (b) any
other government entity having jurisdiction over any matter contemplated by the Operative Agreements or relating to the observance or performance of the obligations of any of the parties to the Operative Agreements. 

“holder”, with respect to any Certificate, means the Person in whose name such Certificate is registered in the Register.

 “Indenture” means with respect to an Aircraft, an indenture and security agreement substantially in the form of the
Indenture Form to which such Aircraft shall have been subjected, as such agreement may be amended, supplemented or otherwise modified from time to time. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-6 

 “Indenture Form” has the meaning set forth on Schedule III to the Note
Purchase Agreement. 
 “Initial Deposits” has the meaning set forth in the sixth recital to the Note Purchase Agreement.

 “Intercreditor Agreement” means that certain Intercreditor Agreement, dated as of the Issuance Date, among the Pass
Through Trustees, the Liquidity Providers and the Subordination Agent, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms; provided that for purposes of any obligations of the
Company, no amendment, modification or supplement to, or substitution or replacement of, such Intercreditor Agreement shall be effective unless consented to by the Company. 

“Issuance Date” means the date of the original issuance of the Certificates. 

“Liquidity Facilities” means, collectively, the Class A Liquidity Facility and the Class B Liquidity Facility. 

“Liquidity Providers” means, collectively, the Class A Liquidity Provider and the Class B Liquidity Provider. 

“Loan Trustee” means, with respect to any Aircraft, the “Loan Trustee” as defined in the Financing Agreements in
respect of such Aircraft. 
 “Long-Term Rating” means, for any entity, (a) in the case of Standard &
Poor’s, the long-term issuer credit rating of such entity, and (b) in the case of Fitch, the long-term issuer default rating of such entity. 

“Manufacturer” means Airbus S.A.S. (legal successor of AVSA, S.A.R.L), a Société par Actions Simplifiée
created and existing under French law and its successors and assigns. 
 “Note Purchase Agreement” means the Note Purchase
Agreement to which this Annex A is attached, as such agreement may be amended, supplemented or otherwise modified from time to time. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-7 

 “Notice of Purchase Withdrawal” with respect to each Deposit Agreement, has the
meaning set forth in Section 2.3(a) of such Deposit Agreement. 
 “Operative Agreements” means, collectively,
each Pass Through Trust Agreement, the Note Purchase Agreement, each Escrow and Paying Agent Agreement, each Deposit Agreement, each Liquidity Facility, the Intercreditor Agreement, the Certificates and, with respect to each Aircraft in respect of
which Equipment Notes shall have been issued, the Financing Agreements. 
 “Participation Agreement” means with respect to
an Aircraft, a participation agreement substantially in the form of the Participation Agreement Form relating to the financing of such Aircraft, as such agreement may be amended, supplemented or otherwise modified from time to time. 

“Participation Agreement Form” has the meaning set forth on Schedule III to the Note Purchase Agreement. 

“Pass Through Trust” has the meaning set forth in the fourth recital to the Note Purchase Agreement. 

“Pass Through Trust Agreement” means each of the two separate Trust Supplements referred to in the fourth recital to the Note
Purchase Agreement, each dated as of the Issuance Date, by and between the Company and the Pass Through Trustee, together in each case with the Basic Pass Through Trust Agreement, as the same may be amended, supplemented or otherwise modified from
time to time in accordance with the terms thereof. 
 “Pass Through Trustee” has the meaning set forth in the first
paragraph of the Note Purchase Agreement. 
 “Paying Agent” has the meaning set forth in the first paragraph of the Note
Purchase Agreement. 
 “Paying Agent Agreements” has the meaning set forth in Section 3(f)(i) of the Note
Purchase Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-8 

 “Person” means any individual, firm, partnership, joint venture, trust, trustee,
Government Entity, organization, association, corporation, limited liability company, government agency, committee, department, authority and other body, corporate or incorporate, whether having distinct legal status or not, or any member of any of
the same. 
 “Rating Agencies” means, with respect to any Class of Certificates, collectively, at any time, each nationally
recognized rating agency which shall have been requested to rate such Class of Certificates and which shall then be rating such Class of Certificates. The initial Rating Agencies with respect to the Class A Certificates and the Class B
Certificates will be Standard & Poor’s and Fitch. 
 “Rating Agency Confirmation” means, in the case of any
action or event that, pursuant to the express terms of the Note Purchase Agreement, requires a “Rating Agency Confirmation” with respect to any Class of Certificates in connection therewith, a written confirmation from each of the Rating
Agencies then rating such Class of Certificates to the effect that such action or event would not result in (i) a reduction of the rating for such Class of Certificates by such Rating Agency below the then current rating for such Class
of Certificates issued by such Rating Agency (before the downgrading of such rating, if any, as a result of the downgrading of the Depositary below the applicable Depositary Threshold Rating for such Rating Agency, if applicable) or
(ii) a withdrawal or suspension of the rating of such Class of Certificates by such Rating Agency. 

“Register” means the register maintained pursuant to Sections 3.04 and 7.12 of the Basic Pass Through Trust
Agreement with respect to each Pass Through Trust. 
 “Replacement Deposit Agreement” means, for each Class of
Certificates, a deposit agreement substantially in the form of the replaced Deposit Agreement for such Class of Certificates as shall permit the Rating Agencies to issue a Rating Agency Confirmation with respect to such Class of Certificates then
rated by such Rating Agency in connection with the replacement of the Depositary with the Replacement Depositary party to such deposit agreement. 

“Replacement Depositary” has the meaning set forth in Section 5(a) of the Note Purchase Agreement. 

“Required Terms” means the provisions set forth on Schedule III to the Note Purchase Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-9 

 “Section 1110” means Section 1110 of the Bankruptcy Code or any successor
or analogous Section of the federal bankruptcy law in effect from time to time. 
 “Series A Equipment Notes” means
Equipment Notes issued under an Indenture and designated as “Series A” thereunder. 
 “Series B Equipment Notes”
means Equipment Notes issued under an Indenture and designated as “Series B” thereunder. 
 “Standard &
Poor’s” means Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC business. 

“Subordination Agent” has the meaning set forth in the first paragraph of the Note Purchase Agreement. 

“Substitute Aircraft” has the meaning set forth in Section 1(h) of the Note Purchase Agreement. 

“Taxes” means all license, recording, documentary, registration and other similar fees and all taxes, levies, imposts,
duties, charges, assessments or withholdings of any nature whatsoever imposed by any Taxing Authority, together with any penalties, additions to tax, fines or interest thereon or additions thereto. 

“Taxing Authority” means any federal, state or local government or other taxing authority in the United States, any foreign
government or any political subdivision or taxing authority thereof, any international taxing authority or any territory or possession of the United States or any taxing authority thereof. 

“Triggering Event” has the meaning assigned to such term in the Intercreditor Agreement. 

“Trust Supplement” means an agreement supplemental to the Basic Pass Through Trust Agreement pursuant to which
(a) a separate trust is created for the benefit of the holders of the pass through certificates of a class, (b) the issuance of the pass through certificates of such class representing fractional undivided interests in such
trust is authorized and (c) the terms of the pass through certificates of such class are established. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-10 

 “Underwriters” has the meaning set forth in the fifth recital to the Note
Purchase Agreement. 
 “Underwriting Agreement” has the meaning set forth in the fifth recital to the Note Purchase
Agreement. 
 “United States” means the United States of America. 

“WTNA” has the meaning set forth in the first paragraph of the Note Purchase Agreement. 

  
 Annex A to 

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

  
 A-11 

 EXHIBIT A to 

NOTE PURCHASE AGREEMENT 
 FORM
OF FUNDING NOTICE 
 FUNDING NOTICE 

Dated as of [                    ] 

To each of the addressees listed 
 in
Schedule A hereto 
  

	 	Re:	Funding Notice in accordance with Note Purchase Agreement referred to below 

 Ladies and Gentlemen: 

Reference is made to the Note Purchase Agreement, dated as of August 11, 2015, among Spirit Airlines, Inc. (the
“Company”), Wilmington Trust, National Association, as Pass Through Trustee under each of the Pass Through Trust Agreements (as defined therein) (the “Pass Through Trustee”), Wilmington Trust, National Association,
as Subordination Agent (the “Subordination Agent”), Wilmington Trust Company, as Escrow Agent (the “Escrow Agent”), and Wilmington Trust, National Association, as Paying Agent (the “Paying Agent”)
(as in effect from time to time, the “Note Purchase Agreement”). Unless otherwise defined herein, capitalized terms used herein shall have the meanings set forth in the Note Purchase Agreement or, to the extent not defined therein,
the Intercreditor Agreement. 
 Pursuant to Section 1(b) of the Note Purchase Agreement, the undersigned hereby notifies you, in
respect of the aircraft described in Schedule B hereto (the “Aircraft”), of the following: 
  

	(1)	The Funding Date of the Aircraft shall be [            ] (which date is no more than 90 days after the delivery of the Aircraft to the Company by the
Manufacturer under the Aircraft Purchase Agreement)3; 

  

	3 	To be included in Funding Notices with respect to each Aircraft that is not a Substitute Aircraft. 

  

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

	(2)	The Equipment Notes to be issued in respect of the Aircraft are described in Schedule C hereto, and the aggregate amount of each series of Equipment Notes to be issued, and purchased by the respective Pass
Through Trustees referred to below, on the Funding Date, in connection with the financing of such Aircraft is as follows: 

  

	 	(a)	the Class A Pass Through Trustee shall purchase Series A Equipment Notes in the amount of $[        ]; and 

 

	 	(b)	the Class B Pass Through Trustee shall purchase Series B Equipment Notes in the amount of $[        ]. 

The Company hereby instructs the Class A Pass Through Trustee to (i) execute a Withdrawal Certificate in the form of Annex
A hereto dated as of [                    ] and attach thereto a Notice of Purchase Withdrawal dated such date completed as set forth on
Exhibit A hereto and (ii) deliver such Withdrawal Certificate and Notice of Purchase Withdrawal to the applicable Escrow Agent. 

The Company hereby instructs the Class B Pass Through Trustee to (i) execute a Withdrawal Certificate in the form of Annex
A hereto dated as of [                    ] and attach thereto a Notice of Purchase Withdrawal dated such date completed as set forth on
Exhibit B hereto and (ii) deliver such Withdrawal Certificate and Notice of Purchase Withdrawal to the applicable Escrow Agent. 

The Company hereby instructs each Pass Through Trustee to (i) purchase Equipment Notes of the related series and in an amount set
forth opposite such Pass Through Trustee in clause (2) above with a portion of the proceeds of the withdrawals of Deposits referred to in the applicable Notice of Purchase Withdrawal referred to above and (ii) re-deposit with the
Depositary the excess, if any, of the amount so withdrawn over the purchase price of such Equipment Notes. 
 The Company hereby
instructs each Pass Through Trustee to (a) enter into the Participation Agreement (N[        ]) dated as of
[                    ] among the Company and Wilmington Trust, National Association, as Loan Trustee, Subordination Agent and each Pass Through
Trustee, substantially in the form previously provided, (b) perform its obligations thereunder and (c) deliver such certificates, documents and legal opinions relating to such Pass Through Trustee as are required thereby.

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 -2- 

			
	Yours faithfully,
	
	Spirit Airlines, Inc.
		
	By:	 	  

		 	Name:
		 	Title:

  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

  
 -3- 

 Schedule A to 

Funding Notice 
 Wilmington Trust, National
Association, as 
 Pass Through Trustee 
 1100
North Market Street 
 Wilmington, Delaware 19890-1605 

Reference: Spirit Airlines 2015-1 EETC 
 Attention: Corporate
Trust Administration – Melinda Romay 
 Telephone: (302) 636-6387 

Facsimile: (302) 636-4140 
 Wilmington Trust, National
Association, as 
 Subordination Agent and Paying Agent 

1100 North Market Street 
 Wilmington, Delaware 19890-1605 

Reference: Spirit Airlines 2015-1 EETC 
 Attention: Corporate
Trust Administration – Melinda Romay 
 Telephone: (302) 636-6387 

Facsimile: (302) 636-4140 
 Wilmington Trust Company, as

 Escrow Agent 
 1100 North Market Street 

Wilmington, Delaware 19890-1605 
 Reference: Spirit Airlines
2015-1 EETC 
 Attention: Corporate Trust Administration – Melinda Romay 

Telephone: (302) 636-6387 
 Facsimile: (302) 636-4140

 Natixis, acting via its New York Branch, as 

Depositary 
 Attention: Aviation Finance Portfolio

 1251 Avenue of the Americas 
 New York, NY 10020 

Telephone: (212) 891-5811 
 Telecopier: (646) 282-2321

 Email: aviationfinanceportfolio@us.natixis.com 

Standard & Poor’s Ratings Services 
 55 Water
Street, 35th Floor 
 New York, New York 10004 
 Attention:
Betsy Snyder 
 Reference: Spirit Airlines 2015-1 EETC 

Telephone: (212) 438-7811 
 Facsimile: (212) 438-7820

  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 Fitch Ratings, Inc. 

One State Street Plaza 
 New York, New York 10004 

Attention: Craig Fraser 
 Reference: Spirit Airlines 2015-1 EETC

 Telephone: 212-908-0310 
 Facsimile: 212-558-2552 

 
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 Schedule B to 

Funding Notice 
 Aircraft

 One Airbus [Model] aircraft bearing U.S. Registration Mark              and
manufacturer’s serial number          together with two [Engine Manufacturer and Model] engines bearing manufacturer’s serial numbers          and
        . 
  
 Note Purchase
Agreement 
 (Spirit 2015-1 EETC) 

 Schedule C to 

Funding Notice 
 Equipment
Notes 
  

									
	 Relevant Pass Through Trustee
	  	 Series of Equipment Notes
	  	 Equipment Note No.
	  	Original Principal
Amount4	 
				
	 Class A Pass Through Trustee
	  	 Series 2015-1A-[Reg. No.]
	  	No.     	  	$	            	  
				
	 Class B Pass Through Trustee
	  	 Series 2015-1B-[Reg. No.]
	  	No.     	  	$	            	  

  

	4 	With respect to any Early Delivery Aircraft, amount to be adjusted as set forth in Schedule III to the Note Purchase Agreement. 

  

Note Purchase Agreement 
 (Spirit
2015-1 EETC) 

 Annex A to 

Funding Notice 
 WITHDRAWAL
CERTIFICATE 
 (Class [A][B]) 
 Wilmington Trust
Company, 
 as Escrow Agent 
 1100 North Market Street 

Wilmington, Delaware 19890-1605 
 Reference: Spirit Airlines
2015-1[A][B] EETC 
 Attention: Corporate Trust Administration – Melinda Romay 

Telephone: (302) 636-6387 
 Facsimile: (302) 636-4140

 Ladies and Gentlemen: 
 Reference is made to the Escrow and
Paying Agent Agreement (Class [A][B]), dated as of August 11, 2015 (the “Agreement”). We hereby certify to you that the conditions to the obligations of the undersigned to execute a Participation Agreement pursuant to the Note
Purchase Agreement have been satisfied. Pursuant to Section 1.02(c) of the Agreement, please execute the attached Notice of Purchase Withdrawal and immediately transmit by facsimile to the Depositary, at Natixis, acting via its New York
Branch, Attention: Aviation Finance Portfolio, 1251 Avenue of the Americas, New York, NY 10020 (Telephone: (212) 891-5811; Telecopier: (646) 282-2321, aviationfinanceportfolio@us.natixis.com. 

Capitalized terms used herein but not defined herein shall have the meanings set forth in the Agreement. 

 

			
	Very truly yours,
	
	 WILMINGTON TRUST, NATIONAL ASSOCIATION,

not in its individual capacity but solely as Pass Through Trustee

		
	By:	 	  

		 	Name:
		 	Title:

 Dated: As of [                 ,
20    ] 
  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 Exhibit A to 

Funding Notice 
 NOTICE OF
PURCHASE WITHDRAWAL 
 Natixis, acting via its New York Branch, as Depositary 

Attention: Aviation Finance Portfolio 
 1251 Avenue of the
Americas 
 New York, NY 10020 
 Telephone: (212) 891-5811

 Telecopier: (646) 282-2321 

aviationfinanceportfolio@us.natixis.com 
 Ladies and Gentlemen:

 Reference is made to the Deposit Agreement (Class A) dated as of August 11, 2015 (the “Deposit Agreement”) between
Wilmington Trust Company, as Escrow Agent, and Natixis, acting via its New York Branch, as Depositary (the “Depositary”). 

In accordance with Section 2.3(a) of the Deposit Agreement, the undersigned hereby requests the withdrawal of the entire amount of
the Deposit, $[        ], from Account No. [            ]. 

The undersigned hereby directs the Depositary to pay the entire amount of the Deposit to [Spirit Airlines, Inc. (“Spirit”) at
Wells Fargo Bank, N.A., ABA# [            ], Account No. [            ], Reference: Spirit Airlines 2015-1A EETC (or to a
designee of Spirit as notified by Spirit prior to the date of withdrawal specified herein)][the Pass Through Trustee (as defined in the Deposit Agreement) at Wilmington Trust, National Association, Wilmington, Delaware, ABA#
[            ], Corporate Trust, Account No. [            ], Reference: Spirit Airlines 2015-1A EETC, Attn: Melinda Romay]5 on [                    ], 20    , upon the telephonic request of a
representative of the Pass Through Trustee. 
  

	5 	If any excess amounts that would need to be re-deposited pursuant to Section 2.4 of the Deposit Agreement and the applicable Funding Notice have been identified as of the date of this notice, the account to be
specified here should be that of the Pass Through Trustee so that the Pass Through Trustee can re-deposit such excess amounts with the Depositary in accordance with Section 2.4 of the Deposit Agreement. If any such excess amounts are identified
following delivery of this notice, a separate substantially similar notice may be sent specifying such account of the Pass Through Trustee. If there are no such excess amounts, the account number to be specified here should be that of Spirit.

  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 
			
	WILMINGTON TRUST COMPANY,
	as Escrow Agent
		
	By	 	  

		 	Name:
		 	Title:

 Dated: As of [                 ,
20    ] 
  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 Exhibit B to 

Funding Notice 
 NOTICE OF
PURCHASE WITHDRAWAL 
 Natixis, acting via its New York Branch, as Depositary 

Attention: Aviation Finance Portfolio 
 1251 Avenue of the
Americas 
 New York, NY 10020 
 Telephone: (212) 891-5811

 Telecopier: (646) 282-2321 

aviationfinanceportfolio@us.natixis.com 
 Ladies and Gentlemen:

 Reference is made to the Deposit Agreement (Class B) dated as of August 11, 2015 (the “Deposit Agreement”) between
Wilmington Trust Company, as Escrow Agent, and Natixis, acting via its New York Branch, as Depositary (the “Depositary”). 

In accordance with Section 2.3(a) of the Deposit Agreement, the undersigned hereby requests the withdrawal of the entire amount of
the Deposit, $[        ], from Account No. [            ]. 

The undersigned hereby directs the Depositary to pay the entire amount of the Deposit to [Spirit Airlines, Inc. (“Spirit”) at
Wells Fargo Bank, N.A., ABA# [            ], Account No. [            ], Reference: Spirit Airlines 2015-1B EETC (or to a
designee of Spirit as notified by Spirit prior to the date of withdrawal specified herein] [the Pass Through Trustee (as defined in the Deposit Agreement) at Wilmington Trust, National Association, Wilmington, Delaware, ABA#
[            ], Corporate Trust, Account No. [            ], Reference: Spirit Airlines 2015-1B EETC, Attn: Melinda Romay]6 on [                    ], 20    , upon the telephonic request of a
representative of the Pass Through Trustee. 
  

	6 	If any excess amounts that would need to be re-deposited pursuant to Section 2.4 of the Deposit Agreement and the applicable Funding Notice have been identified as of the date of this notice, the account to be
specified here should be that of the Pass Through Trustee so that the Pass Through Trustee can re-deposit such excess amounts with the Depositary in accordance with Section 2.4 of the Deposit Agreement. If any such excess amounts are identified
following delivery of this notice, a separate substantially similar notice may be sent specifying such account of the Pass Through Trustee. If there are no such excess amounts, the account number to be specified here should be that of Spirit.

  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 
			
	WILMINGTON TRUST COMPANY,
	as Escrow Agent
		
	By	 	  

		 	Name:
		 	Title:

 Dated: As of [                 ,
20    ] 
  
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 EXHIBIT B to 

NOTE PURCHASE AGREEMENT 
 FORM
OF PARTICIPATION AGREEMENT 
 [Filed separately as Exhibit 4.12] 

 
 Note Purchase Agreement 

(Spirit 2015-1 EETC) 

 EXHIBIT C to 

NOTE PURCHASE AGREEMENT 
 FORM
OF INDENTURE 
 [Filed separately as Exhibit 4.13] 
  

Note Purchase Agreement 
 (Spirit
2015-1 EETC)Form of Participation Agreement

 Exhibit 4.12 

FINAL FORM 
  

 
 PARTICIPATION AGREEMENT 

([Reg. No.]) 
 Dated as of
            , 20    1 

among 
 SPIRIT AIRLINES, INC.,

 WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Pass Through Trustee under each of the 

Pass Through Trust Agreements, 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Subordination Agent, 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

as Loan Trustee, 
 and 

WILMINGTON TRUST, NATIONAL ASSOCIATION, 

in its individual capacity as set forth herein 

* 
 One Airbus [Model] 

(Generic Manufacturer and Model Airbus [Generic Model]) Aircraft 

U.S. Registration No. [Reg. No.] 
  

 
  

	1 	To insert the relevant Closing Date. 

 Participation Agreement (Spirit 2015-1 EETC) 

[Reg. No.] 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
		
	 ARTICLE 1 DEFINITIONS
	  	 	2	  
			
	Section 1.01.	 	 Definitions
	  	 	2	  
	Section 1.02.	 	 Other Definitional Provisions
	  	 	2	  
		
	 ARTICLE 2 THE LOANS
	  	 	2	  
			
	Section 2.01.	 	 The Loans
	  	 	2	  
	Section 2.02.	 	 Issuance of Equipment Notes
	  	 	3	  
	Section 2.03.	 	 The Closing
	  	 	3	  
		
	 ARTICLE 3 CONDITIONS PRECEDENT
	  	 	4	  
			
	Section 3.01.	 	 Conditions Precedent to Obligations of Pass Through Trustees
	  	 	4	  
	Section 3.02.	 	 Conditions Precedent to Obligations of the Company
	  	 	8	  
		
	 ARTICLE 4 REPRESENTATIONS, WARRANTIES AND INDEMNITIES OF THE COMPANY
	  	 	9	  
			
	Section 4.01.	 	 Representations and Warranties of the Company
	  	 	9	  
	Section 4.02.	 	 General Indemnity
	  	 	12	  
		
	 ARTICLE 5 REPRESENTATIONS, WARRANTIES AND COVENANTS OF WTNA
	  	 	19	  
			
	Section 5.01.	 	 Representations, Warranties and Covenants of WTNA
	  	 	19	  
		
	 ARTICLE 6 OTHER COVENANTS AND AGREEMENTS
	  	 	22	  
			
	Section 6.01.	 	 Other Agreements
	  	 	22	  
	Section 6.02.	 	 Certain Covenants of the Company
	  	 	25	  
		
	 ARTICLE 7 MISCELLANEOUS
	  	 	27	  
			
	Section 7.01.	 	 Notices
	  	 	27	  
	Section 7.02.	 	 Survival of Representations, Warranties, Indemnities, Covenants and Agreements
	  	 	28	  
	Section 7.03.	 	 Governing Law
	  	 	28	  
	Section 7.04.	 	 Severability
	  	 	28	  
	Section 7.05.	 	 No Oral Modifications or Continuing Waivers; Consents
	  	 	28	  
	Section 7.06.	 	 Effect of Headings and Table of Contents
	  	 	29	  
	Section 7.07.	 	 Successors and Assigns
	  	 	29	  
	Section 7.08.	 	 Benefits of Agreement
	  	 	29	  

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

  
 i 

 TABLE OF CONTENTS 

(continued) 
  

							
	 	 	 	  	Page	 
			
	Section 7.09.	 	 Counterparts
	  	 	29	  
	Section 7.10.	 	 Submission to Jurisdiction
	  	 	29	  
	Section 7.11.	 	 Further Assurances
	  	 	30	  
	Section 7.12.	 	 Section 1110
	  	 	30	  

  

					
	Schedule I	  	-	  	Equipment Notes, Purchasers and Original Principal Amounts
	Schedule II	  	-	  	Trust Supplements
			
	Exhibit A-1	  	-	  	Form of Opinion of Counsel for the Company
	Exhibit A-2	  	-	  	Form of Opinion of Debevoise & Plimpton LLP, special counsel for the Company
	Exhibit B	  	-	  	Form of Opinion of Special Counsel for the Loan Trustee, the Pass Through Trustees, the Subordination Agent and WTNA
	Exhibit C	  	-	  	Form of Opinion of Special FAA Counsel
	Exhibit D	  	-	  	Form of Manufacturer’s Consent
	Exhibit E	  	-	  	Form of Opinion of Special Delaware Counsel as to UCC Matters
			
	Annex A	  	-	  	Definitions

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

  
 ii 

 PARTICIPATION AGREEMENT 

([REG. NO.]) 
 This
PARTICIPATION AGREEMENT ([REG. NO.]), dated as of             , 20    2, is made by and among SPIRIT AIRLINES, INC.,
a Delaware corporation (together with its successors and permitted assigns, the “Company”), 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 except as otherwise expressly provided in any of the Operative Documents or the Pass Through Documents, but solely as Pass Through Trustee under each of the Pass Through
Trust Agreements (such terms and other capitalized terms used herein without definition being defined as provided in Section 1.01), WILMINGTON TRUST, NATIONAL ASSOCIATION, a national banking association, as subordination agent and trustee (in
such capacity, together with any successor trustee in such capacity, the “Subordination Agent”) under the Intercreditor Agreement, and WILMINGTON TRUST, NATIONAL ASSOCIATION, as loan trustee (in such capacity, together with any
successor trustee in such capacity, the “Loan Trustee”) under the Indenture. 
 WITNESSETH: 

WHEREAS, the Company is the owner of that certain Airbus Model             
aircraft more particularly described in the Indenture Supplement originally executed and delivered under the Indenture; 
 WHEREAS,
concurrently with the execution and delivery of this Agreement, the Company and the Loan Trustee are entering into the Indenture, pursuant to which, among other things, the Company will issue two separate series of Equipment Notes, which Equipment
Notes are to be secured by a security interest in all right, title and interest of the Company in and to the Aircraft and certain other property described in the Indenture; 

WHEREAS, pursuant to the Basic Pass Through Trust Agreement and each of the Trust Supplements set forth in Schedule II, the Pass Through
Trusts were created and the Pass Through Certificates issued and sold; 
 WHEREAS, pursuant to the Intercreditor Agreement, the
Subordination Agent will hold the Equipment Notes on behalf of the Pass Through Trusts; 
 NOW, THEREFORE, in consideration of the foregoing
premises and 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: 

 

	2 	To insert the relevant Closing Date. 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 ARTICLE 1 

DEFINITIONS 

Section 1.01. Definitions. For the purposes of this Agreement, unless the context otherwise requires, capitalized terms used but
not defined herein shall have the respective meanings set forth or incorporated by reference in Annex A. 
 Section 1.02. Other
Definitional Provisions. (a) The definitions stated herein and in Annex A apply equally to both the singular and the plural forms of the terms defined. 

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

(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, Subsection, Schedule, Exhibit, Annex or other subdivision. 

(d) All references in this Agreement to a “government” are to such government and any instrumentality or agency
thereof. 
 (e) Unless the context otherwise requires, whenever the words “including”, “include” or
“includes” are used herein, they shall be deemed to be followed by the phrase “without limitation”. 

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

ARTICLE 2 
 THE LOANS

 Section 2.01. The Loans. Subject to the terms and conditions of this Agreement and the Indenture, on the Closing Date,
the Pass Through Trustee for each Pass Through Trust shall make a loan to the Company by paying to the Company the aggregate original principal amounts of the Equipment Notes being issued to such Pass Through Trust as set forth on Schedule I
opposite the name of such Pass Through Trust. The Pass Through Trustees, on behalf of the Pass Through Trusts, shall make such loans to the Company no later than 11:00 a.m. (New York City time) on the Closing Date by transferring such amount in
immediately available funds to the Company at its account at Wells Fargo 

  
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Bank, N.A., 420 Montgomery, San Francisco, CA 94104, Account No. 2000049216277, ABA Number 121000248 (or to a designee of the Company as notified by the Company prior to the Closing Date). 

Section 2.02. Issuance of Equipment Notes. Upon the occurrence of the above payments by the Pass Through Trustee for each Pass
Through Trust to the Company, the Company shall issue, pursuant to and in accordance with Article II of the Indenture, to the Subordination Agent as agent and trustee for the Pass Through Trustee for each Pass Through Trust, one or more Equipment
Notes of the maturity and aggregate original principal amount and bearing the interest rate set forth in Schedule I opposite the name of such Pass Through Trust. Each such Equipment Note shall be duly authenticated by the Loan Trustee pursuant to
the Indenture, registered in the name of the Subordination Agent and dated the Closing Date and shall be delivered by the Loan Trustee to the Subordination Agent. In addition, subject to Section 4(a)(v) of the Note Purchase Agreement and
Section 8.01(c) or 8.01(d) of the Intercreditor Agreement, as applicable, the Company shall have the option after the Closing Date, from time to time, (i) to redeem all but not less than all of the Series B Equipment Notes (or all
but not less than all of any Series of Additional Series Equipment Notes) and to issue under the Indenture new Equipment Notes with the same Series designation as, but with terms that may be the same as or different from those of, the redeemed
Equipment Notes, (ii) to issue one or more Series of Additional Series Equipment Notes under the Indenture and (iii) following the payment in full of all but not less than all of the Series B Equipment Notes (or all but not
less than all of any Series of Additional Series Equipment Notes), to issue under the Indenture new Equipment Notes with the same Series designation as, but with terms that may be the same as or different from those of, such Equipment Notes that
have been paid in full. If new Series B Equipment Notes or Additional Series Equipment Notes or new Additional Series Equipment Notes are so issued after the Closing Date, each Noteholder of such Equipment Notes shall be deemed to be a party hereto
without further act, and shall be entitled to execute, and at the request of the Company shall execute, a counterpart to this Agreement. For the avoidance of doubt, if the Company shall issue new “Series B Equipment Notes” or
“Additional Series Equipment Notes” of any Series or new “Additional Series Equipment Note”, in each case under any Related Indenture, the Company may, but shall not be required to, issue, as the case may be, new Series B
Equipment Notes or Additional Series Equipment Notes of the same Series or new Additional Series Equipment Notes of the same Series, in each case under the Indenture. 

Section 2.03. The Closing. The closing (the “Closing”) of the transactions contemplated hereby shall take place
at the offices of Debevoise & Plimpton LLP, 919 Third Avenue, New York, New York 10022 at 9:30 a.m. (New York City time) on             , 20     or at such
other time or place as the parties shall agree. 

  
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 ARTICLE 3 

CONDITIONS PRECEDENT 

Section 3.01. Conditions Precedent to Obligations of the Pass Through Trustees. The obligation of each Pass Through Trustee to
make the loan contemplated by Article II is subject to the fulfillment (or the waiver by such Pass Through Trustee) prior to or on the Closing Date of the following conditions precedent: 

(a) Authentication. The Company shall have tendered the Equipment Notes being issued on the Closing Date to the Loan
Trustee for authentication, and the Loan Trustee shall have authenticated such Equipment Notes and shall have tendered such Equipment Notes to the Subordination Agent on behalf of the applicable Pass Through Trustee, against receipt of the loan
proceeds, in accordance with Section 2.02. 
 (b) No Changes in Law. No change shall have occurred after the date
of this Agreement in applicable law or regulations thereunder or interpretations thereof by appropriate regulatory authorities or any court that would make it a violation of law or governmental regulations for the Pass Through Trustees to make the
loans contemplated by Section 2.01 or to acquire the Equipment Notes. 
 (c) Documentation. This Agreement and
the following documents shall have been duly authorized, executed and delivered by the respective party or parties thereto (other than the Pass Through Trustees or the Loan Trustee), shall be in full force and effect and executed counterparts (or
copies thereof where indicated) thereof shall have been delivered to each Pass Through Trustee: 
 (i) the Intercreditor
Agreement; 
 (ii) the Liquidity Facilities; 

(iii) the Pass Through Trust Agreements; 

(iv) the Indenture and the Indenture Supplement covering the Aircraft and dated the Closing Date; 

(v) the Manufacturer’s Consent; 

(vi) a copy of the FAA Bill of Sale; and 

(vii) a copy of the Warranty Bill of Sale. 

(d) Financing Statement. A Uniform Commercial Code financing statement or statements covering the security interest
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naming the Company, as debtor, and the Loan Trustee, as secured party, shall have been (or shall be in the process of being) duly filed in all places necessary or desirable within the State of
Delaware. 
 (e) Certain Closing Certificates. Each Pass Through Trustee shall have received the following: 

(i) a certificate dated the Closing Date of the Secretary or an Assistant Secretary of the Company, certifying as to
(A) a copy of the resolutions of the Board of Directors of the Company or the executive or any other applicable committee thereof duly authorizing the transactions contemplated hereby and the execution, delivery and performance by the
Company of this Agreement and the Indenture and each other document required to be executed and delivered by the Company in accordance with the provisions hereof or thereof and (B) a copy of the certificate of incorporation and by-laws
of the Company, as in effect on the Closing Date; 
 (ii) a certificate or other evidence from the Secretary of State of the
State of Delaware, dated as of a date reasonably near the Closing Date, as to the due incorporation and good standing of the Company in such state; 

(iii) an incumbency certificate of the Company as to the person or persons authorized to execute and deliver this Agreement,
the Indenture and each other document to be executed by the Company in connection with the transactions contemplated hereby and thereby, and the specimen signatures of such person or persons; and 

(iv) one or more certificates of the Loan Trustee and the Subordination Agent certifying to the reasonable satisfaction of the
Pass Through Trustees as to the due authorization, execution, delivery and performance by the Loan Trustee and the Subordination Agent of each of the Operative Documents to which the Loan Trustee or the Subordination Agent is or will be a party and
any other documents to be executed by or on behalf of the Loan Trustee or the Subordination Agent in connection with the transactions contemplated hereby or thereby. 

(f) Representations; No Event of Default or Event of Loss. On the Closing Date, the following statements shall be
correct: (i) the representations and warranties of the Company herein are correct in all material respects as though made on and as of such date, except to the extent that such representations and warranties relate solely to an earlier
date (in which case such representations and warranties are correct on and as of such earlier date) and (ii) no event has 

  
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occurred and is continuing that constitutes an Event of Default or an Event of Loss with respect to the Aircraft or would constitute an Event of Default or such an Event of Loss but for the
requirement that notice be given or time elapse or both. 
 (g) Opinion of Counsel to the Company. Each Pass Through
Trustee and the Loan Trustee shall have received (i) an opinion addressed to it from Thomas Canfield, Esq., General Counsel of the Company (or such internal counsel to the Company as shall be reasonably satisfactory to the Pass Through
Trustees) substantially in the form set forth in Exhibit A-1 and (ii) an opinion addressed to it from Debevoise & Plimpton LLP substantially in the form set forth in Exhibit A-2. 

(h) Opinion of Counsel to WTNA, the Loan Trustee, the Pass Through Trustees and the Subordination Agent. Each Pass
Through Trustee and the Loan Trustee shall have received an opinion addressed to it from Morris James LLP, special counsel for WTNA, the Loan Trustee, the Pass Through Trustees and the Subordination Agent, substantially in the form set forth in
Exhibit B. 
 (i) Opinion of FAA Counsel. Each Pass Through Trustee and the Loan Trustee shall have
received an opinion addressed to it from Daugherty, Fowler, Peregrin, Haught & Jenson, a Professional Corporation, special FAA counsel in Oklahoma City, Oklahoma, substantially in the form set forth in Exhibit C. 

(j) Certification from the Company. Each Pass Through Trustee and the Loan Trustee shall have received a certificate or
certificates signed by the chief financial or accounting officer, any Senior Vice President, the Treasurer, any Vice President or any Assistant Treasurer (or any other Responsible Officer) of the Company, dated the Closing Date, certifying as to the
correctness of each of the matters stated in Section 3.01(f). 
 (k) Certification from WTNA, the Loan Trustee and
the Subordination Agent. Each Pass Through Trustee shall have received a certificate from WTNA in its individual capacity and as Loan Trustee and Subordination Agent, as applicable, dated the Closing Date, signed by an authorized officer of WTNA
in its individual capacity and as Loan Trustee and Subordination Agent, as applicable, certifying for each such entity that no Loan Trustee Liens or Other Party Liens attributable to it, as applicable, exist, and further certifying as to the
correctness of each of the matters stated in Section 5.01. 
 (l) [Reserved.] 

  
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 (m) Insurance Matters. The Loan Trustee shall have received an insurance
report of an independent insurance broker and the related certificates of insurance, each in form and substance reasonably satisfactory to the Loan Trustee, as to the compliance with the terms of Section 7.06 of the Indenture relating to
insurance with respect to the Aircraft. 
 (n) No Proceedings. No action or proceeding shall have been instituted nor
shall governmental action be threatened before any court or governmental agency, nor shall any order, judgment or decree have been issued or proposed to be issued by any court or governmental agency at the time of the Closing to set aside, restrain,
enjoin or prevent the completion and consummation of this Agreement or the transactions contemplated hereby. 
 (o)
Funding of Pass Through Trusts. Each Pass Through Trustee shall have received in immediately available funds an amount at least equal to the aggregate purchase price of the Equipment Notes to be purchased from the Company by such Pass Through
Trustee. 
 (p) Manufacturer’s Consent. The Loan Trustee shall have received an executed copy of the
Manufacturer’s Consent substantially in the form set forth in Exhibit D. 
 (q) Governmental Approvals.
All appropriate action required to have been taken prior to the Closing Date by the FAA or any governmental or political agency, subdivision or instrumentality of the United States in connection with the transactions contemplated by this Agreement
has been taken, and all orders, permits, waivers, authorizations, exemptions and approvals of such entities required to be in effect on the Closing Date in connection with the transactions contemplated by this Agreement have been issued. 

(r) Satisfaction of Requirements under the Note Purchase Agreement. The conditions precedent set forth in Section 2
of the Note Purchase Agreement, and the requirements set forth in Section 1 of the Note Purchase Agreement relating to the Aircraft and the Equipment Notes, shall have been satisfied. 

Promptly upon the recording of the Indenture (with the Indenture Supplement attached) pursuant to the Transportation Code and the receipt of
appropriate and correct recording information from the FAA, the Company will cause Daugherty, Fowler, Peregrin, Haught & Jenson, a Professional Corporation, special FAA counsel in Oklahoma City, Oklahoma to deliver to the Subordination
Agent, to the Pass Through Trustees, to the Loan Trustee and to the Company an opinion as to the due recording of such instrument and the lack of filing of any intervening documents with respect to the Aircraft. 

  
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 Section 3.02. Conditions Precedent to Obligations of the Company. The obligation of
the Company to issue and sell the Equipment Notes is subject to the fulfillment (or waiver by the Company) prior to or on the Closing Date of the following conditions precedent: 

(a) No Changes in Law. No change shall have occurred after the date of this Agreement in applicable law or regulations
thereunder or interpretations thereof by appropriate regulatory authorities or any court that would make it a violation of law or governmental regulations for the Company to enter into any transaction contemplated by the Operative Documents, the
Note Purchase Agreement or the other Pass Through Documents. 
 (b) Documentation. The documents referred to in
Section 3.01(c) shall have been duly authorized, executed and delivered by the respective party or parties thereto (other than the Company), shall be in full force and effect and executed counterparts (or copies thereof where indicated) thereof
shall have been delivered to the Company, and the Company shall have received such documents and evidence with respect to WTNA, each Liquidity Provider, the Loan Trustee, the Subordination Agent and each Pass Through Trustee as the Company
reasonably requests in order to establish the consummation of the transactions contemplated by this Agreement, the taking of all corporate and other proceedings in connection therewith and compliance with the conditions herein set forth. 

(c) FAA Filing. The Indenture (with the Indenture Supplement covering the Aircraft attached) shall have been duly filed
for recordation (or shall be in the process of being so duly filed for recordation) with the FAA pursuant to the Transportation Code. The registration of the International Interests (or Prospective International Interests) created under the
Indenture (as supplemented by the Indenture Supplement with respect to the Aircraft) shall have been effected (or shall be in the process of being so effected) on the International Registry in accordance with the Cape Town Treaty. 

(d) Representations and Warranties. On the Closing Date, the representations and warranties herein of WTNA, the Loan
Trustee, the Subordination Agent and the Pass Through Trustees shall be correct as though made on and as of such date, except to the extent that such representations and warranties relate solely to an earlier date (in which case such representations
and warranties shall have been correct on and as of such earlier date), and, insofar as such representations and warranties concern WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee, such party shall have so certified to
the Company. 
 (e) Certain Opinions and Certificates. The Company shall have received each opinion referred to in
Sections 3.01(h) and 3.01(i), each such 

  
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opinion addressed to the Company or accompanied by a letter from the counsel rendering such opinion authorizing the Company to rely on such opinion as if it were addressed to the Company, and the
certificates referred to in Sections 3.01(e)(iv) and 3.01(k). 
 (f) Certain Opinion of Special Delaware Counsel. The
Company shall have received an opinion addressed to it from Morris James LLP, special Delaware counsel as to UCC matters, substantially in the form set forth in Exhibit E. 

(g) No Proceedings. No action or proceeding shall have been instituted nor shall governmental action be threatened
before any court or governmental agency, nor shall any order, judgment or decree have been issued or proposed to be issued by any court or governmental agency at the time of the Closing to set aside, restrain, enjoin or prevent the completion and
consummation of this Agreement or the transactions contemplated hereby. 
 (h) No Other Party Liens, etc. The Company
shall have received a certificate from WTNA dated the Closing Date, signed by an authorized officer of WTNA, certifying for each Pass Through Trustee that no Other Party Liens attributable to it exist and further certifying as to the correctness of
each of the matters stated in Section 5.01. 
 (i) Payment for Equipment Notes. The Company shall have been paid
by each Pass Through Trustee the aggregate original principal amount of the Equipment Notes being issued to such Pass Through Trustee as set forth on Schedule I opposite the name of such Pass Through Trust. 

ARTICLE 4 

REPRESENTATIONS, WARRANTIES AND INDEMNITIES OF THE COMPANY 

Section 4.01. Representations and Warranties of the Company. The Company represents and warrants that: 

(a) Organization; Authority; Qualification. The Company is a corporation duly incorporated and validly existing in good
standing under the laws of the State of Delaware, is a Certificated Air Carrier, is a Citizen of the United States, has the corporate power and authority to own its properties or hold them under lease and to enter into and perform its obligations
under the Operative Documents to which it is a party and is duly qualified to do business as a foreign corporation in good standing in each other jurisdiction in which the failure to so qualify would have a material adverse effect on the
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condition of the Company and its subsidiaries, considered as a whole, and its jurisdiction of organization (as such term is used in Article 9 of the Uniform Commercial Code as in effect in the
State of Delaware) is Delaware. 
 (b) Corporate Action and Authorization; No Violations. The execution, delivery and
performance by the Company of this Agreement and the other Operative Documents to which the Company is a party have been duly authorized by all necessary corporate action on the part of the Company, do not require any stockholder approval or
approval or consent of any trustee or holder of any indebtedness or obligations of the Company, except such as have been duly obtained and are in full force and effect, and do not contravene any law, governmental rule, regulation, judgment or order
binding on the Company or the certificate of incorporation or by-laws of the Company or contravene or result in a breach of, or constitute a default under, or result in the creation of any Lien (other than as permitted under the Indenture) upon the
property of the Company under, any material indenture, mortgage, contract or other agreement to which the Company is a party or by which it or any of its properties may be bound or affected. 

(c) Governmental Approvals. Neither the execution and delivery by the Company of this Agreement and the other Operative
Documents to which it is a party, nor the consummation by the Company of any of the transactions contemplated hereby or thereby, requires the authorization, consent or approval of, the giving of notice to, the filing or registration with or the
taking of any other action in respect of, the Department of Transportation, the FAA or any other federal or state governmental authority or agency, or the International Registry, except for (i) the registration of the issuance and sale
of the Pass Through Certificates under the Securities Act and under the securities laws of any state or other jurisdiction in which the Pass Through Certificates may be offered for sale if the laws of such state or other jurisdiction require such
action, (ii) the qualification of the Pass Through Trust Agreements under the Trust Indenture Act, (iii) the orders, permits, waivers, exemptions, authorizations and approvals of the regulatory authorities having jurisdiction
over the Company’s ownership or operation of the Aircraft required to be obtained on or prior to the Closing Date, which orders, permits, waivers, exemptions, authorizations and approvals have been duly obtained and are, or on the Closing Date
will be, in full force and effect, (iv) the filings and registrations referred to in Section 4.01(e), (v) authorizations, consents, approvals, notices and filings required to be obtained, taken, given or made under
securities or Blue Sky or similar laws of the various states and foreign jurisdictions and (vi) consents, approvals, notices, registrations and other actions required to be obtained, given, made or taken only after the date hereof. 

  
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 (d) Valid and Binding Agreements. This Agreement and each other Operative
Document to which the Company is a party have been duly executed and delivered by the Company and constitute the legal, valid and binding obligations of the Company enforceable against the Company in accordance with their terms, except as the same
may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting the rights of creditors generally and by general principles of equity and except, in the case of the Indenture, as limited by applicable laws that
may affect the remedies provided in the Indenture, which laws, however, do not make the remedies provided in the Indenture inadequate for the practical realization of the rights and benefits intended to be provided thereby. 

(e) Filings and Recordation. Except for (i) the filing for recordation pursuant to the Transportation Code
of the Indenture (with the Indenture Supplement covering the Aircraft attached), (ii) with respect to the security interests created by such documents, the filing of financing statements (and continuation statements at periodic
intervals) under the Uniform Commercial Code of Delaware, and (iii) the registration on the International Registry of the International Interests (or Prospective International Interests) created under the Indenture (as supplemented by
the Indenture Supplement covering the Aircraft), no further filing or recording of any document is necessary under the laws of the United States or any state thereof as of the Closing Date in order to establish and perfect the security interest in
the Aircraft created under the Indenture in favor of the Loan Trustee as against the Company and any third parties in any applicable jurisdiction in the United States. 

(f) Investment Company Act. The Company is not required to be registered as an “investment company” within the
meaning of the Investment Company Act of 1940, as amended. 
 (g) Title. As of the Closing Date, (i) the
Company has good title to the Aircraft, free and clear of Liens other than Permitted Liens, (ii) the Aircraft has been duly certificated (or shall be in the process of being so duly certificated) by the FAA as to type and airworthiness
in accordance with the terms of the Indenture, (iii) the Indenture (with the Indenture Supplement covering the Aircraft attached) has been duly filed for recordation (or shall be in the process of being so duly filed for recordation)
with the FAA pursuant to the Transportation Code, (iv) the Aircraft is duly registered (or shall be in the process of being so duly registered) with the FAA in the name of the Company, and (v) the registration of the
International Interests (or Prospective International Interests) created under the Indenture (as supplemented by the Indenture Supplement with respect to the Aircraft) shall have been effected (or shall be in the process of being so effected) on the
International Registry in accordance with the Cape Town Treaty. 

  
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 (h) Section 1110. The Loan Trustee is entitled to the benefits of
Section 1110 with respect to the Aircraft being subjected to the Lien of the Indenture on the Closing Date. 
 (i)
Security Interest. The Indenture creates in favor of the Loan Trustee, for the benefit of the Noteholders, the Indenture Indemnitees and the Related Indenture Indemnitees, a valid and (subject to the filings and registrations referred to in
Section 4.01(e)) perfected Lien on the Aircraft purported to be subjected to the Lien of the Indenture on the Closing Date, subject to no equal or prior Lien, except Permitted Liens. 

(j) Licenses, Permits and Franchises. The Company holds all licenses, permits and franchises from the appropriate
government entities necessary to authorize the Company lawfully to engage in air transportation and to carry on scheduled commercial passenger service as currently conducted, except where the failure to so hold any such license, permit or franchise
would not have a material adverse effect on the financial condition or operations of the Company and its consolidated subsidiaries, taken as a whole. 

Section 4.02. General Indemnity. (a) Claims Defined. For the purposes of this Section 4.02,
“Claims” means any and all liabilities, obligations, losses, damages, penalties, claims, actions, suits, costs or expenses of whatsoever kind and nature (whether or not on the basis of negligence, strict or absolute liability or
liability in tort) that may be imposed on, incurred by, suffered by or asserted against an Indemnitee, as defined below, and, except as otherwise expressly provided in this Section 4.02, includes all reasonable out-of-pocket costs,
disbursements and expenses (including reasonable out-of-pocket legal fees and expenses) actually incurred by an Indemnitee in connection therewith or related thereto. 

(b) Indemnitee Defined. For the purposes of this Section 4.02, “Indemnitee” means
(i) WTNA and the Loan Trustee, (ii) each separate or additional trustee appointed pursuant to Section 8.02 of the Indenture, (iii) so long as it holds any Equipment Notes as agent and trustee of any Pass
Through Trustee, the Subordination Agent (iv) so long as it is the holder of any Equipment Notes, each Pass Through Trustee, (v) each Liquidity Provider, (vi) any Related Noteholder, (vii) the Escrow
Agent, (viii) the Paying Agent and (ix) each of their respective successors and permitted assigns in such capacities, agents, servants, officers, employees and directors (the respective agents, servants, officers, employees
and directors of each of the foregoing Indemnitees, as applicable, together with such Indemnitee, collectively the “Related Indemnitee Group” of such Indemnitee); provided that such Persons, to the extent they are not
signatories to this Agreement, have expressly agreed in writing to be bound by the terms of this Section 4.02 prior to, or concurrently with, the making of a Claim. If any Indemnitee fails to comply with any duty or obligation under this
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with respect to any Claim, such Indemnitee shall not be entitled to any indemnity with respect to such Claim under this Section 4.02 to the extent such failure was prejudicial to the
Company. No holder of a Pass Through Certificate in its capacity as such holder shall be an Indemnitee. 
 (c) Claims
Indemnified. Subject to the exclusions stated in Section 4.02(d), the Company agrees to indemnify, protect, defend and hold harmless on an After-Tax Basis each Indemnitee against Claims resulting from or arising out of (a) the
Operative Documents or the enforcement of any of the terms of the Operative Documents, (b) the Aircraft, the Airframe, any Engine or any Part, including, without limitation, with respect thereto, (i) the sale, purchase,
acceptance, non-acceptance or rejection of the Aircraft under the Purchase Agreement or the ownership, possession, use, non-use, substitution, airworthiness, control, maintenance, repair, operation, registration, re-registration, de-registration,
delivery, non-delivery, assignment, abandonment, condition, sale, lease, sublease, storage, modification, alteration, return, transfer or other disposition of the Aircraft, the Airframe, any Engine or any Part (including, without limitation, latent
or other defects, whether or not discoverable, and any claim for patent, trademark or copyright infringement) by the Company, any Permitted Lessee or any other Person, (ii) tort liability, whether or not arising out of the negligence of
any Indemnitee (whether active, passive or imputed), (iii) death or property damage of passengers, shippers or others, and (iv) environmental control, noise or pollution, and (c) the offer, sale or delivery of any
Equipment Notes, Pass Through Certificates or any interest therein or represented thereby. Without limiting the foregoing and subject to, and without duplication of, the provisions of Section 6.01(a), the Company agrees to pay the reasonable
ongoing fees, and the reasonable out-of-pocket costs and expenses actually incurred (including, without limitation, reasonable attorney’s fees and disbursements actually incurred and, to the extent payable as provided in the Indenture,
reasonable compensation and expenses of the Loan Trustee’s agents actually incurred), of the Loan Trustee in connection with the transactions contemplated hereby. 

(d) Claims Excluded. The following are excluded from the Company’s agreement to indemnify an Indemnitee under this
Section 4.02: 
 (i) any Claim to the extent such Claim is attributable to acts or events occurring after
(A) the Lien of the Indenture has been discharged, or (B) the transfer of possession of the Aircraft pursuant to Article IV of the Indenture except to the extent that such Claim is attributable to acts occurring in connection
with the exercise of remedies pursuant to Section 4.02 of the Indenture following the occurrence and continuance of an Event of Default; 

  
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 (ii) any Claim to the extent such Claim is, or is attributable to, a Tax (or loss
of any Tax benefit), except with respect to paying indemnity amounts on an After-Tax Basis; 
 (iii) any Claim to the extent
such Claim is attributable to the negligence or willful misconduct of such Indemnitee or such Indemnitee’s Related Indemnitee Group; 

(iv) any Claim to the extent such Claim is attributable to the noncompliance by such Indemnitee or such Indemnitee’s
Related Indemnitee Group with any of the terms of, or any misrepresentation by an Indemnitee or its Related Indemnitee Group contained in, this Agreement, any other Operative Document or any Pass Through Document to which such Indemnitee or any of
such Related Indemnitee Group is a party or any agreement relating hereto or thereto; 
 (v) any Claim to the extent such
Claim constitutes a Lien attributable to such Indemnitee; 
 (vi) any Claim to the extent such Claim is attributable to the
offer, sale, assignment, transfer, participation or other disposition (whether voluntary or involuntary) by or on behalf of such Indemnitee or its Related Indemnitee Group (other than during the occurrence and continuance of an Event of Default;
provided that any such offer, sale, assignment, transfer, participation or other disposition during the occurrence and continuation of an Event of Default shall not be subject to indemnification unless it is made in accordance with the
Indenture and applicable law) of any Equipment Note or interest therein or Pass Through Certificate, all or any part of such Indemnitee’s interest in the Operative Documents or the Pass Through Documents, or any interest in the Collateral or
any similar security; 
 (vii) any Claim to the extent such Claim is attributable to (A) a failure on the part of
the Loan Trustee to distribute in accordance with this Agreement or any other Operative Document any amounts received and distributable by it hereunder or thereunder, (B) a failure on the part of the Subordination Agent to distribute in
accordance with the Intercreditor Agreement any amounts received and distributable by it thereunder, (C) a failure on the part of any Pass Through Trustee to distribute in accordance with the Pass Through Trust Agreement to which it is a
party any amounts received and distributable by it thereunder, (D) a failure on the part of the Escrow Agent to distribute in accordance with any Escrow Agreement any amounts received and distributable by it thereunder, (E) a
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Agreement any amounts received and distributable by it thereunder or (F) a failure on the part of the Depositary to pay funds payable by it in accordance with any Deposit Agreement;

 (viii) any Claim to the extent such Claim is attributable to the authorization or giving or withholding of any future
amendments, supplements, waivers or consents with respect to any Operative Document or any Pass Through Document, other than such as have been requested by the Company or that occur as the result of an Event of Default, or such as are expressly
required or contemplated by the provisions of the Operative Documents or the Pass Through Documents; 
 (ix) any Claim to the
extent such Claim is payable or borne by (A) the Company pursuant to any indemnification, compensation or reimbursement provision of any other Operative Document or any Pass Through Document or (B) a Person other than the
Company pursuant to any provision of any Operative Document or any Pass Through Document; 
 (x) any Claim to the extent such
Claim is an ordinary and usual operating or overhead expense or not an out-of-pocket expense actually incurred; 
 (xi) any
Claim to the extent such Claim is incurred on account of or asserted as a result of (A) any “prohibited transaction” within the meaning of Section 406 of ERISA or Section 4975 of the Code or any foreign, federal,
state or local law which is substantially similar to the prohibited transaction provisions of Section 406 of ERISA or Section 4975 of the Code (“Similar Law”) or (B) any breach of fiduciary duty under ERISA; 

(xii) any Claim to the extent such Claim is attributable to one or more of the other aircraft financed through the offering of
Pass Through Certificates (in the event of doubt, any Claim shall be allocated between the Aircraft and such other aircraft in the same proportion that the then outstanding Equipment Notes bear to the then outstanding equipment notes issued with
respect to the other aircraft and held by the Pass Through Trustees); 
 (xiii) any Claim to the extent such Claim is
attributable to any amount which any Indemnitee expressly agrees shall not be paid by, borne by, or reimbursed by the Company; 

  
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 (xiv) any Claim by an Indemnitee related to the status of such Indemnitee as a
passenger or shipper on any of the Company’s aircraft or as a party to a marketing or promotional or other commercial agreement with the Company unrelated to the transactions contemplated by the Operative Documents; and 

(xv) any Claim to the extent such Claim is attributable to the offer or sale by an Indemnitee (or any member of such
Indemnitee’s Related Indemnitee Group) of any interest in the Aircraft, the Equipment Notes, the Pass Through Certificates, or any similar interest, in violation of the Securities Act or other applicable federal, state or foreign securities
laws (other than any thereof caused by acts or omissions of the Company of any of its affiliates). 
 (e) Insured
Claims. In the case of any Claim indemnified by the Company hereunder that is covered by a policy of insurance maintained by the Company, each Indemnitee agrees to cooperate, at the Company’s expense, with the insurers in the exercise of
their rights to investigate, defend and compromise such Claim. 
 (f) Claims Procedure. An Indemnitee shall promptly
notify the Company of any Claim as to which indemnification is sought. The failure to provide such prompt notice shall not release the Company from any of its obligations to indemnify hereunder except to the extent that the Company is prejudiced by
such failure or the Company’s indemnification obligations are increased as a result of such failure (in which event the Company shall not be responsible for such additional indemnification obligations). Such Indemnitee shall promptly submit to
the Company all additional information in such Indemnitee’s possession to substantiate such Claim as the Company reasonably requests. Subject to the rights of the Company’s insurers, the Company may, at its sole cost and expense,
investigate any Claim, and may in its sole discretion defend or compromise any Claim. At the Company’s expense, any Indemnitee shall cooperate with all reasonable requests of the Company in connection therewith. Such Indemnitee shall not enter
into a settlement or other compromise with respect to any Claim without the prior written consent of the Company, which consent shall not be unreasonably withheld or delayed, unless such Indemnitee waives its right to be indemnified with respect to
such Claim. Where the Company or its insurers undertake the defense of an Indemnitee with respect to a Claim, no additional legal fees or expenses of such Indemnitee in connection with the defense of such Claim shall be indemnified hereunder unless
such fees or expenses were incurred at the written request of the Company or such insurers. Subject to the requirements of any policy of insurance, an Indemnitee may participate at its own expense in any judicial proceeding controlled by the Company
pursuant to the preceding provisions; provided that such party’s 

  
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participation does not, in the opinion of outside counsel appointed by the Company or its insurers to conduct such proceedings, interfere with such control. Such participation shall not
constitute a waiver of the indemnification provided in this Section 4.02. Notwithstanding anything to the contrary contained herein, the Company shall not under any circumstances be liable for the fees and expenses of more than one counsel for
all Indemnitees with respect to any one Claim. Notwithstanding anything to the contrary contained herein, an Indemnitee shall not under any circumstances be required or deemed to be required to contest any Claim or to assume responsibility for or
control of any judicial proceeding with respect thereto. The Company will provide the relevant Indemnitee with such information not within the control of such Indemnitee, as is in the Company’s control or is reasonably available to the Company,
which such Indemnitee may reasonably request and will otherwise cooperate with such Indemnitee so as to enable such Indemnitee to fulfill its obligations under this Section 4.02. If an Indemnitee is not a party to this Agreement, the Company
may require such Indemnitee to agree in writing to the terms of this Section 4.02 and Section 7.10 of this Agreement prior to making any payment to such Indemnitee under this Section 4.02. 

(g) Subrogation. To the extent that a Claim is in fact paid in full by the Company or its insurer, the Company or such
insurer (as the case may be) shall, without any further action, be subrogated to the rights and remedies of the Indemnitee on whose behalf such Claim was paid with respect to the transaction or event giving rise to such Claim. Such Indemnitee shall
give such further assurances or agreements and shall cooperate with the Company or such insurer, as the case may be, to permit the Company or such insurer to pursue such rights and remedies, if any, to the extent reasonably requested by the Company.
So long as no Event of Default has occurred and is continuing, if an Indemnitee receives any payment, in whole or in part, from any party other than the Company or its insurers with respect to any Claim paid by the Company or its insurers, it shall
promptly pay over to the Company the amount received (but not an amount in excess of the amount the Company or any of its insurers has paid in respect of such Claim). Any amount referred to in the preceding sentence that is payable to the Company
shall not be paid to the Company, or, if it has been previously paid directly to the Company, shall not be retained by the Company, if at the time of such payment an Event of Default has occurred and is continuing, but shall be paid to and held by
the Loan Trustee as security for the obligations of the Company under the Operative Documents. If the Company agrees, such amount payable shall be applied against the Company’s obligations thereunder when and as they become due and payable. At
such time as such Event of Default is no longer continuing, such amount, to the extent not previously so applied against the Company’s obligations, shall be paid to the Company. 

  
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 (h) No Guaranty. Nothing set forth in this Section 4.02 constitutes a
guarantee by the Company that the Aircraft at any time will have any particular value, useful life or residual value. 
 (i)
Payments; Interest. Any amount payable to any Indemnitee on account of a Claim shall be paid within 30 days after receipt by the Company of a written demand therefor from such Indemnitee accompanied by a written statement describing in
reasonable detail the Claims that are the subject of and basis for such indemnity and the computation of the amount payable. Any payments made pursuant to this Section 4.02 directly to an Indemnitee or to the Company, as the case may be, shall
be made in immediately available funds at such bank or to such account as is specified by the payee in written directions to the payor or, if no such directions are given, by check of the payor payable to the order of the payee and mailed to the
payee by certified mail, return receipt requested, postage prepaid to its address referred to in Section 7.01. To the extent permitted by applicable law, interest at the Past Due Rate shall be paid, on demand, on any amount or indemnity not
paid when due pursuant to this Section 4.02 until the same is paid. Such interest shall be paid in the same manner as the unpaid amount in respect of which such interest is due. 

(j) Tax Deduction or Credit. If, by reason of any payment made to or for the account of any Indemnitee by the Company,
or by reason of any Claim of any Indemnitee paid or indemnified against by the Company, in each case pursuant to this Section 4.02, such Indemnitee realizes a Tax deduction or credit not previously taken into account in computing such payment,
such Indemnitee shall promptly pay to the Company an amount equal to the sum of (i) the actual reduction in Taxes realized by such Indemnitee which is attributable to such deduction or credit, and (ii) the actual reduction in
Taxes realized by such Indemnitee as a result of any payment made by such Indemnitee pursuant to this sentence; provided that the amount payable by such Indemnitee pursuant to this sentence shall not exceed the sum of all amounts previously
paid by the Company to such Indemnitee pursuant to this Section 4.02; provided, further, that any such excess shall be carried forward and applied to reduce pro tanto any subsequent obligations of the Company to make
payments to such Indemnitee pursuant to this Section 4.02. If such Tax deduction or credit is subsequently disallowed or lost, upon written notice from the Indemnitee the Company shall promptly repay all amounts paid to it pursuant to this
Section 4.02(j) in respect of such disallowed or lost deduction or credit. If, at the time an amount would otherwise be payable to the Company under this Section 4.02(j), any Event of Default shall have occurred and be continuing, such
amount shall be held by the relevant Indemnitee as security for the obligations of the Company under the Operative Documents. At such time as no Event of Default is continuing, such amount or portion thereof shall be applied to offset the
Company’s outstanding obligations under the Operative Documents and any remaining amount after such application shall be paid to the Company. 

  
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 ARTICLE 5 

REPRESENTATIONS, WARRANTIES AND COVENANTS OF WTNA 

Section 5.01. Representations, Warranties and Covenants of WTNA. WTNA, generally, and as each of the Loan Trustee, the
Subordination Agent and the Pass Through Trustee as it relates to it, represents, warrants and covenants that: 
 (a)
Organization; Authority. WTNA is a national banking association duly organized and validly existing in good standing under the laws of the United States, is eligible to be the Loan Trustee under Section 8.01(a) of the Indenture, will
promptly comply with Section 8.01(a) of the Indenture and has full power, authority and legal right to enter into and perform its obligations under each of the Operative Documents and the Pass Through Documents to which WTNA, the Loan Trustee,
the Subordination Agent or any Pass Through Trustee is a party and, in its capacity as Loan Trustee and Pass Through Trustee, respectively, to authenticate the Equipment Notes and the Pass Through Certificates, respectively. WTNA is qualified to act
as Loan Trustee under Section 8.01(c) of the Indenture. WTNA is a Citizen of the United States (without the use of a voting trust agreement), and will resign as the Loan Trustee under the Indenture promptly after it obtains actual knowledge
that it has ceased to be such a Citizen of the United States. 
 (b) Due Authorization; No Violations. The execution,
delivery and performance by WTNA, individually or in its capacity as Loan Trustee, Subordination Agent or Pass Through Trustee, as the case may be, of this Agreement, each of the other Operative Documents and each of the Pass Through Documents to
which WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee is a party, the performance by WTNA, individually or in its capacity as Loan Trustee, Subordination Agent or Pass Through Trustee, as the case may be, of its
obligations thereunder and the consummation on the Closing Date or the Issuance Date, as the case may be, of the transactions contemplated thereby, and the authentication of the Equipment Notes and the Pass Through Certificates, respectively, to be
delivered on the Closing Date or the Issuance Date, as the case may be: (i) have been duly authorized by all necessary action on the part of WTNA, the Loan Trustee, the Subordination Agent and each Pass Through Trustee, as the case may
be, (ii) do not violate any law or regulation of the United States or of the state of the United States in which WTNA is located and which governs the banking and trust powers of WTNA or any order, writ, judgment or decree of any court,
arbitrator or governmental authority applicable to WTNA, the Loan Trustee, the Subordination Agent or any Pass Through 

  
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Trustee or any of their assets, (iii) will not violate any provision of the charter or by-laws of WTNA and (iv) will not violate any provision of, or constitute a default
under, any mortgage, indenture, contract, agreement or undertaking to which any of WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee is a party or by which any of them or their respective properties may be bound or
affected. 
 (c) Approvals. Neither the execution and delivery by WTNA, individually or in its capacity as Loan
Trustee, Subordination Agent or Pass Through Trustee, as the case may be, of this Agreement, any other Operative Document or any Pass Through Document to which WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee is a party,
nor the consummation by WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee of any of the transactions contemplated hereby or thereby, requires the authorization, consent or approval of, the giving of notice to, the filing or
registration with, or the taking of any other action in respect of, (i) any governmental authority or agency of the United States or the state of the United States where WTNA is located and regulating the banking and trust powers of WTNA
or (ii) any trustee or other holder of any debt of WTNA. 
 (d) Valid and Binding Agreements. This
Agreement, each other Operative Document and each Pass Through Document to which WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee is a party have been duly executed and delivered by WTNA, individually and in its capacity
as Loan Trustee, Subordination Agent or Pass Through Trustee, as the case may be, and constitute the legal, valid and binding obligations of WTNA, the Loan Trustee, the Subordination Agent and such Pass Through Trustee, as the case may be,
enforceable against it in accordance with its terms, except as the same may be limited by bankruptcy, insolvency, reorganization, moratorium or other similar laws affecting the rights of creditors generally and by general principles of equity. 

(e) No Loan Trustee Liens or Other Party Liens. It unconditionally agrees with and for the benefit of the parties to
this Agreement that it will not directly or indirectly create, incur, assume or suffer to exist any Loan Trustee Lien or Other Party Lien attributable to it, and it agrees that it will, at its own cost and expense, promptly take such action as may
be necessary to discharge and satisfy in full any such Lien. 
 (f) Intercreditor Agreement. The Equipment Notes to be
issued to the Subordination Agent pursuant hereto are being acquired by it to be held under the Intercreditor Agreement. 

(g) Funds Transfer Fees. Each of WTNA, the Loan Trustee, the Subordination Agent and each Pass Through Trustee agrees
that it will not impose 

  
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any lifting charge, cable charge, remittance charge or any other charge or fee on any transfer by the Company of funds to, through or by WTNA, the Loan Trustee, the Subordination Agent or such
Pass Through Trustee pursuant to this Agreement, any other Operative Document or any Pass Through Document, except as may be otherwise agreed to in writing by the Company. 

(h) Confidentiality. Each of WTNA, the Loan Trustee, the Subordination Agent and each Pass Through Trustee agrees to be
bound by the terms of Section 10.16 of the Indenture. 
 (i) Certain Tax Matters. There are no Taxes payable by
WTNA, the Loan Trustee, the Subordination Agent or the Pass Through Trustees imposed by the State of Delaware or any political subdivision or taxing authority thereof, in connection with the execution, delivery or performance by WTNA, the Loan
Trustee or the Subordination Agent or any Pass Through Trustee of any Operative Document or any Pass Through Document (other than franchise or other Taxes based on or measured by any fees or compensation received by any such Person for services
rendered in connection with the transactions contemplated by the Operative Documents or the Pass Through Documents), and there are no Taxes payable by any Pass Through Trustee imposed by the State of Delaware or any political subdivision thereof in
connection with the acquisition, possession or ownership by such Pass Through Trustee of any of the Equipment Notes (other than franchise or other Taxes based on or measured by any fees or compensation received by such Pass Through Trustee for
services rendered in connection with the transactions contemplated by the Operative Documents or the Pass Through Documents) and, assuming that the Pass Through Trusts will not be taxable for Federal income tax purposes as corporations, but, rather,
will be characterized for such purposes as grantor trusts or partnerships, the Pass Through Trusts will not be subject to any Taxes imposed by the State of Delaware or any political subdivision thereof. 

(j) Limitation on Situs of Activities. Except with the consent of the Company, which shall not be unreasonably withheld:
WTNA will act as Pass Through Trustee, Subordination Agent and Loan Trustee solely through its offices within the State of Delaware, except for such services as may be performed for it by independent agents in the ordinary course of business, but
not directly by it, in other states. 
 (k) No Proceedings. There are no pending or, to its knowledge, threatened
actions or proceedings against WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee before any court or administrative agency which individually or in the aggregate, if determined adversely to it, would materially adversely
affect the ability of WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee to perform its obligations under any Operative Document or any Pass Through Document. 

(l) Other Representations. The representations and warranties contained in Section 7.15 of the Basic Pass Through
Trust Agreement and Section 7.04 of each Trust Supplement are true, complete and correct as of the Closing Date. 

  
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 ARTICLE 6 

OTHER COVENANTS AND AGREEMENTS 

Section 6.01. Other Agreements. (a) Fees and Expenses. The Company agrees promptly to pay (without duplication of any
other obligation the Company may have to pay such amounts) (1) the initial and annual fees and (to the extent the Loan Trustee is entitled to be reimbursed for its reasonable expenses) the reasonable expenses of the Loan Trustee in
connection with the transactions contemplated hereby and (2) the following expenses incurred by the Loan Trustee, the Subordination Agent and the Pass Through Trustees in connection with the negotiation, preparation, execution and
delivery of this Agreement, the other Operative Documents and the other documents or instruments referred to herein or therein: 

(i) the reasonable fees, expenses and disbursements of (A) Morris James LLP, special counsel for the Loan Trustee,
the Subordination Agent and the Pass Through Trustees, (B) Morris James LLP, special Delaware counsel as to UCC matters, and (C) Daugherty, Fowler, Peregrin, Haught & Jenson, a Professional Corporation, special FAA
counsel in Oklahoma City, Oklahoma, in each case to the extent actually incurred; and 
 (ii) all reasonable expenses
actually incurred in connection with printing and document production or reproduction expenses, and in connection with the filing of Uniform Commercial Code financing statements. 

(b) Continuing Registration and Re-Registration. The Loan Trustee, the Noteholders, the Subordination Agent and each
Pass Through Trustee agree to execute and deliver, at the Company’s expense, all such documents and consents as the Company reasonably requests for the purpose of continuing the registration of the Aircraft at the FAA in the Company’s name
or for the purpose of registering or maintaining any registration on the International Registry in respect of the Aircraft. In addition, each of the Loan Trustee, the Subordination Agent, each Pass Through Trustee and any other Noteholder agrees,
for the benefit of the Company, to cooperate with the Company in effecting any foreign registration of 

  
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the Aircraft pursuant to Section 7.02(e) of the Indenture; provided that prior to any such change in the country of registry of the Aircraft the conditions set forth in
Section 7.02(e) of the Indenture are met to the reasonable satisfaction of, or waived by, the Loan Trustee. 
 (c)
Quiet Enjoyment. Each of WTNA, the Loan Trustee, the Subordination Agent, each Pass Through Trustee, any other Noteholder, the Class A Liquidity Provider (by having entered into the Class A Liquidity Facility) and the Class B
Liquidity Provider (by having entered into the Class B Liquidity Facility) agrees that, unless an Event of Default shall have occurred and be continuing, it shall not (and shall not permit any Affiliate or other Person claiming by, through or under
it to) take any action contrary to, or otherwise in any way interfere with or disturb (and then only in accordance with the Indenture), the quiet enjoyment of the use and possession of the Aircraft, the Airframe, any Engine or any Part by the
Company or any transferee of any interest in any thereof permitted under the Indenture. 
 (d) No Noteholder Liens.
Each Noteholder, including, without limitation, the Subordination Agent and each Pass Through Trustee, unconditionally agrees with and for the benefit of the parties to this Agreement that it will not directly or indirectly create, incur, assume or
suffer to exist any Noteholder Liens, and such Noteholder agrees that it will, at its own cost and expense, promptly take such action as may be necessary to discharge and satisfy in full any such Noteholder Lien; and each Noteholder hereby agrees to
indemnify, protect, defend and hold harmless each Indemnitee and the Company against claims in any way resulting from or arising out of a breach by it of its obligations under this Section 6.01(d). 

(e) Agreement to be Bound; Transfer. By its acceptance of its Equipment Notes, each Noteholder unconditionally agrees
for the benefit of the Company and the Loan Trustee: (i) to be bound by and to perform and comply with all of the terms of such Equipment Notes, the Indenture and this Agreement applicable to such Noteholder and (ii) that it
will not transfer any Equipment Note (or any part thereof) to any entity unless such transfer complies with and does not violate the Transportation Code, the Securities Act (or require registration under such Act) or any other law (including,
without limitation, ERISA, the Code and Similar Law), and does not create a relationship that would be in violation thereof, or result in a “prohibited transaction” under Section 406 of ERISA, Section 4975 of the Code or Similar
Law or require qualification of an indenture under the Trust Indenture Act. 
 (f) Tax Returns. Each Pass Through
Trustee shall file any Tax returns required to be filed by the related Pass Through Trust and the Company shall pay the Applicable Portion of any expenses relating thereto. The Company shall be 

  
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responsible for the Applicable Portion of any interest or penalties related to any Pass Through Trustee’s failure to file any such Tax returns required to be filed by the relevant Pass
Through Trust, except to the extent that such failure is attributable to the gross negligence or willful misconduct of such Pass Through Trustee. For purposes of this Section 6.01(f), the “Applicable Portion” of any amount
shall equal such amount multiplied by a fraction, the numerator of which shall be the sum of the then outstanding aggregate principal amount of the Equipment Notes held by the relevant Pass Through Trustee, and the denominator of which shall be the
sum of the outstanding aggregate principal amount of all “Equipment Notes” issued under each of the “Indentures” (in each case as defined in the Intercreditor Agreement) held by such Pass Through Trustee. 

(g) No Petition. Each of the Company, the Loan Trustee, each Pass Through Trustee, the Subordination Agent and any other
Noteholder covenants that (i) until one year and one day after the Series A Equipment Notes have been paid in full, it shall not acquiesce, petition or otherwise invoke or cause or join in invoking or causing the Class A Pass
Through 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 the Class A Pass Through Trust under any bankruptcy, insolvency or
similar law or appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or other similar official of the Class A Pass Through Trust or any substantial part of its property or ordering the winding-up or liquidation of the
affairs of the Class A Pass Through Trust, (ii) until one year and one day after the Series B Equipment Notes have been paid in full, it shall not acquiesce, petition or otherwise invoke or cause or join in invoking or causing the
Class B Pass Through 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 the Class B Pass Through Trust under any bankruptcy, insolvency
or similar law or appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or other similar official of the Class B Pass Through Trust or any substantial part of its property or ordering the winding-up or liquidation of the
affairs of the Class B Pass Through Trust, and (iii) if any Additional Series Equipment Notes of any Series shall have been issued, until one year and one day after such Additional Series Equipment Notes have been paid in full, it shall
not acquiesce, petition or otherwise invoke or cause or join in invoking or causing the related Additional Series Pass Through 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 Additional Series Pass Through Trust under any bankruptcy, insolvency or similar law or appointing a receiver, liquidator, assignee, trustee, custodian, sequestrator or other similar official of such
Additional Series Pass Through Trust or any substantial part of its property or ordering the winding-up or liquidation of the affairs of such Additional Series Pass Through Trust. 

  
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 Section 6.02. Certain Covenants of the Company. The Company covenants and agrees with
the Loan Trustee as follows: 
 (a) Further Assurances. On and after the Closing, the Company will cause to be done,
executed, acknowledged and delivered such further acts, conveyances and assurances as the Loan Trustee reasonably requests for accomplishing the purposes of this Agreement and the other Operative Documents; provided that any instrument or
other document so executed by the Company will not expand any obligations or limit any rights of the Company in respect of the transactions contemplated by the Operative Documents. 

(b) Filing and Recordation of the Indenture; Registration of International Interests. The Company, at its expense, will
cause the Indenture (with the Indenture Supplement covering the Aircraft attached) to be promptly filed and recorded, or filed for recording, with the FAA to the extent permitted under the Transportation Code and the rules and regulations of the FAA
thereunder. In addition, on or prior to the Closing Date, the Company will cause the registration of the International Interests (or Prospective International Interests) created under the Indenture (as supplemented by the Indenture Supplement with
respect to the Aircraft) to be effected (or be in the process of being effected) on the International Registry in accordance with the Cape Town Treaty, and shall, as and to the extent applicable, consent to such registration upon the issuance of a
request for such consent by the International Registry. 
 (c) Maintenance of Filings. The Company, at its expense,
will take, or cause to be taken, such action with respect to the recording, filing, re-recording and refiling of the Indenture and any financing statements or other instruments as are necessary to maintain, so long as the Indenture is in effect, the
perfection of the security interests created by the Indenture or will furnish the Loan Trustee timely notice of the necessity of such action, together with such instruments, in execution form, and such other information as may be required to enable
the Loan Trustee to take such action. In addition, the Company will pay any and all recording, stamp and other similar Taxes payable in the United States, and in any other jurisdiction where the Aircraft is registered, in connection with the
execution, delivery, recording, filing, re-recording and refiling of the Indenture or any such financing statements or other instruments. The Company will notify the Loan Trustee of any change in its jurisdiction of organization (as such term is
used in Article 9 of the Uniform Commercial Code as in effect in the State of Delaware) promptly after making such change or in any event within the period of time necessary under applicable law to prevent the lapse of perfection (absent refiling)
of financing statements filed under the Operative Documents. 
 (d) Maintenance of Corporate Existence. The Company
shall at all times maintain its corporate existence except as permitted by Section 6.02(e). 

  
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 (e) Merger; Consolidation; Transfer of Substantially All Assets. The
Company shall not consolidate with or merge into any other Person or convey, transfer or lease substantially all of its assets as an entirety to any Person, unless: 

(i) the successor or transferee entity shall, if and to the extent required under Section 1110 in order that the Loan
Trustee continues to be entitled to any benefits of Section 1110 with respect to the Aircraft, be a Citizen of the United States and a Certificated Air Carrier and shall execute and deliver to the Loan Trustee an agreement containing the
express assumption by such successor or transferee entity of the due and punctual performance and observance of each covenant and condition of the Operative Documents to which the Company is a party to be performed or observed by the Company; 

(ii) if the Aircraft is, at the time, registered with the FAA or such Person is located in a “Contracting State” (as
such term is used in the Cape Town Treaty), such Person makes such filings and recordings with the FAA pursuant to the Act and registration under the Cape Town Treaty, or if the Aircraft is, at the time, not registered with the FAA, such Person
makes such filings and recordings with the applicable aviation authority, as are necessary to evidence such consolidation, merger, conveyance, transfer or lease; 

(iii) immediately after giving effect to such transaction, no Event of Default shall have occurred and be continuing; and 

(iv) the Company shall deliver to the Loan Trustee and each Liquidity Provider a certificate signed by a Responsible Officer of
the Company stating that such consolidation, merger, conveyance, transfer or lease and the assumption agreement mentioned in clause (i) above comply with this Section 6.02(e) and that all conditions precedent herein relating to such
transaction have been complied with. 
 Upon any consolidation or merger, or any conveyance, transfer or lease of
substantially all of the assets of the Company as an entirety in accordance with this Section 6.02(e), the successor Person formed by such consolidation or into which the Company is merged or to which such conveyance, transfer or lease is made
shall succeed to, and be substituted for, and may exercise every right and power of, the Company under this Agreement and the other Operative Documents with the same effect as if such successor Person had been named as the Company herein. 

(f) Section 1110. The Company shall remain a Certificated Air Carrier for as long as and to the extent required
under Section 1110 in order that the Loan Trustee shall be entitled to any of the benefits of Section 1110 with respect to the Aircraft. 

(g) Additional Information. Promptly after the occurrence of a Triggering Event or an Indenture Event of Default
resulting from the failure of the Company 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 Company will, at the Subordination
Agent’s request from time to time but in any event no more frequently than once every three months, provide to the Subordination Agent a statement setting forth the following information with respect to the Aircraft if then subject to the lien
of the Indenture: (A) whether the Aircraft is currently in service or parked in storage, (B) the maintenance status of the Aircraft, and (C) the location of the Engines. As used in this Section 6.02(g), the
terms “Triggering Event”, “Indenture Event of Default” and “Regular Distribution Date” shall have the respective meanings set forth in the Intercreditor Agreement. 

  
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 ARTICLE 7 

MISCELLANEOUS 

Section 7.01. 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, 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) addressed as follows: 
 if to the Company, addressed to: 

Spirit Airlines, Inc. 
 2800
Executive Way 
 Miramar, Florida 33025 

Attention: Legal Department and Treasury Department 

Telephone: (954) 447-7914 (Legal) 

Facsimile: (954) 447-7854 (Legal) 

  
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 if to WTNA, the Loan Trustee, the Subordination Agent or any Pass Through Trustee, addressed to:

 Wilmington Trust, National Association 

1100 North Market Street 

Wilmington, Delaware 19890-1605 

Attention: Corporate Trust Administration – Melinda Romay 

Ref.: Spirit 2015-1 EETC 

Telephone: (302) 636-6387 

Facsimile: (302) 636-4140 
 or if to any
subsequent Noteholder, addressed to such Noteholder at its address set forth in the Equipment Note Register maintained pursuant to Section 2.07 of the Indenture. 

Any party, by notice to the other parties hereto, may designate 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 7.01. 

Section 7.02. Survival of Representations, Warranties, Indemnities, Covenants and Agreements. The indemnities set forth in
Section 4.02 of this Agreement and the confidentiality obligations set forth in Section 5.01(h) of this Agreement shall survive the making of the loans, the transfer of any interest by any Noteholder of its Equipment Note and the
expiration or termination of any Operative Documents (in the case of the indemnities, to the extent arising out of acts or events occurring prior to such expiration or termination). 

Section 7.03. 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 7.04. 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 7.05. No Oral
Modifications or Continuing Waivers; Consents. Subject to Section 9.03 of the Indenture, 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 against which the enforcement of the change, waiver, discharge or termination is sought. No such change, waiver, discharge or termination shall be effective unless a signed copy thereof is delivered to the Loan Trustee. 

  
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 28 

 Section 7.06. Effect of Headings and Table of Contents. The headings of the various
Articles and Sections herein and in the Table of Contents are for convenience of reference only and do not define or limit any of the terms or provisions hereof. 

Section 7.07. Successors and Assigns. All covenants, agreements, representations and warranties in this Agreement by the Company,
by WTNA, individually or as Loan Trustee, Subordination Agent or Pass Through Trustee, or by any Noteholder, shall bind and inure to the benefit of and be enforceable by the Company, and subject to the terms of Section 6.02(e), its successors
and permitted assigns, each Pass Through Trustee and any successor or other trustee under the Pass Through Trust Agreement to which it is a party, the Subordination Agent and its successor under the Intercreditor Agreement and the Loan Trustee and
its successor under the Indenture, whether so expressed or not. 
 Section 7.08. Benefits of Agreement. Subject to the next
sentence, nothing in this Agreement, express or implied, gives to any Person, other than the parties hereto and their successors hereunder, any benefit or any legal or equitable right, remedy or claim under this Agreement, except as expressly
provided herein. The Company agrees and acknowledges that each Liquidity Provider, and each separate or additional trustee appointed pursuant to Section 8.02 of the Indenture shall be third party beneficiaries of the covenants and agreements of
the Company with respect to the indemnities contained in Section 4.02 and may rely on the covenants and agreements of the Company with respect to such indemnities to the same extent as if the covenants and agreements of the Company with respect
to such indemnities were made to such Liquidity Provider or such trustee, as the case may be, directly. WTNA generally, and each of the Loan Trustee, the Subordination Agent and each Pass Through Trustee, insofar as relating to each such Person,
agrees and acknowledges that each Liquidity Provider is a third party beneficiary of the representations and warranties set forth in Section 5.01, and that such Liquidity Provider may rely on such representations and warranties to the same
extent as if such representations and warranties were made to such Liquidity Provider directly. 
 Section 7.09. Counterparts.
This Agreement may be executed in any number of counterparts. Each of the parties hereto 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 shall together constitute one instrument. 

Section 7.10. Submission to Jurisdiction. Each of the parties hereto, to the extent it may do so under applicable law, for
purposes hereof and of all other Operative Documents hereby (a) 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 (b) waives, 

  
 Participation
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 [Reg. No.] 

  
 29 

 
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. 

Section 7.11. Further Assurances. Each party hereto shall execute, acknowledge and deliver or shall cause to be executed,
acknowledged and delivered, all such further agreements, instruments, certificates or documents, and shall do and cause to be done such further acts and things, including, without limitation, making or consenting to registrations (or discharges
thereof, as appropriate) with respect to the Indenture on the International Registry and appointing Daugherty, Fowler, Peregrin, Haught & Jenson, a Professional Corporation, as its “professional user entity” (as defined in the
Cape Town Treaty) to make or consent to any registrations (or discharges thereof, as appropriate) on the International Registry with respect to the Airframe or any Engine, in any case, as any other party hereto shall reasonably request in connection
with the administration of, or to carry out more effectively the purposes of, or to better assure and confirm into such other party the rights and benefits to be provided under this Agreement, the other Operative Documents and the Pass Through
Documents. 
 Section 7.12. Section 1110. It is the intention of each of the Company, the Noteholders (such intention being
evidenced by each of their acceptance of an Equipment Note), the Loan Trustee and other parties hereto that the security interest created by the Indenture, to the fullest extent available under applicable law, entitles the Loan Trustee, on behalf of
the Noteholders, to all of the benefits of Section 1110 with respect to the Aircraft, Airframe, Engines and Parts. 

  
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 30 

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

			
	SPIRIT AIRLINES, INC.
		
	By:	 	  

		 	Name:
		 	Title:
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Pass Through Trustee under each of the Pass Through Trust Agreements
		
	By:	 	  

		 	Name:
		 	Title:
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Subordination Agent
		
	By:	 	  

		 	Name:
		 	Title:
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Loan Trustee
		
	By:	 	  

		 	Name:
		 	Title:

 Signature Page 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 
					
	WILMINGTON TRUST, NATIONAL ASSOCIATION, in its individual capacity as set forth herein
		
	By:	 	  

		 	Name:	 	
		 	Title:	 	

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

  
 2 

 SCHEDULE I to 

PARTICIPATION AGREEMENT 
 EQUIPMENT
NOTES, 
 PURCHASERS AND ORIGINAL PRINCIPAL AMOUNTS 
  

													
	 Purchaser
	 	 Description of Equipment Notes
	 	Maturity	 	Interest
Rate	 	 	Original Principal
Amount3	 
					
	 Spirit Airlines Pass Through Trust 2015-1A
	 	 Series 2015-1A-[Reg. No.]

Equipment Note[s]
	 	April 1, 2028	 	 	4.100	% 	 	$	[	●] 
					
	 Spirit Airlines Pass Through Trust 2015-1B
	 	
Series 2015-1B-[Reg. 
No.]
 Equipment Note[s]
	 	April 1, 2024	 	 	4.450	% 	 	$	[	●] 

  

	3 	For each Series, to insert the amount set forth for such Series in Schedule III to the Note Purchase Agreement (including, any adjustments if the Aircraft is an “Early Delivery Aircraft” (as defined in the
Note Purchase Agreement) to give effect to any Amortization Withdrawal (as defined in the Deposit Agreements) for the Aircraft). 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 SCHEDULE II to 

PARTICIPATION AGREEMENT 
 TRUST
SUPPLEMENTS 
 Trust Supplement No. 2015-1A, dated as of the Issuance Date, between the Company and the Pass Through Trustee in respect
of Spirit Airlines Pass Through Trust 2015-1A. 
 Trust Supplement No. 2015-1B, dated as of the Issuance Date, between the Company and
the Pass Through Trustee in respect of Spirit Airlines Pass Through Trust 2015-1B. 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT A-1 to 

PARTICIPATION AGREEMENT 
 FORM OF
OPINION OF 
 COUNSEL FOR THE COMPANY 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT A-2 to 

PARTICIPATION AGREEMENT 
 FORM OF
OPINION OF 
 SPECIAL COUNSEL FOR THE COMPANY 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT B to 

PARTICIPATION AGREEMENT 
 FORM OF
OPINION OF 
 SPECIAL COUNSEL FOR THE LOAN TRUSTEE, THE PASS THROUGH 

TRUSTEES THE SUBORDINATION AGENT AND WTNA 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT C to 

PARTICIPATION AGREEMENT 
 FORM OF
OPINION OF 
 SPECIAL FAA COUNSEL 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT D to 

PARTICIPATION AGREEMENT 
 FORM OF
MANUFACTURER’S CONSENT 
 ] 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 EXHIBIT E to 

PARTICIPATION AGREEMENT 
 FORM OF
OPINION OF SPECIAL DELAWARE COUNSEL AS TO UCC MATTERS 

  
 Participation
Agreement (Spirit 2015-1 EETC) 
 [Reg. No.] 

 Annex A to 

Participation Agreement and 

Indenture and Security Agreement 

([REG. NO.]) 
 DEFINITIONS

 ([REG. NO.]) 

“Additional Series” or “Additional Series Equipment Notes” means Equipment Notes issued under the Indenture
and designated as a Series (other than “Series A” or “Series B”) thereunder in the principal amounts and maturities and bearing interest as specified in Schedule I to the Indenture amended at the time of original issuance of such
Additional Series under the heading for such Series. 
 “Additional Series Pass Through Certificates” means the pass
through certificates issued by any Additional Series Pass Through Trust. 
 “Additional Series Pass Through Trust” means a
grantor trust created to facilitate the issuance and sale of pass through certificates in connection with the issuance of any Additional Series Equipment Notes. 

“Additional Series Pass Through Trust Agreement” means a Trust Supplement entered into in connection with the creation of an
Additional Series Pass Through Trust, together with the Basic Pass Through Trust Agreement, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Additional Series Pass Through Trustee” means, with respect to any Additional Series Pass Through Trust, the trustee under
the Additional Series Pass Through Trust Agreement for such Additional Series Pass Through Trust. 
 “Affiliate” means with
respect to any Person, any other Person directly or indirectly controlling, controlled by or under common control with such Person. For the purposes of this definition, “control” (including “controlled by” and “under common
control with”) shall mean 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. In no event shall WTNA
be deemed to be an Affiliate of the Loan Trustee or vice versa. 
 “After-Tax Basis” means that indemnity and compensation
payments required to be made on such basis will be supplemented by the Person paying the base amount by that amount which, when added to such base amount, and after deduction of all Federal, state, local and foreign Taxes required to be paid by or
on behalf of the payee with respect of the receipt or realization of the base amount and any such supplemental amounts, and after consideration of any current tax savings of such payee resulting by way of any deduction, credit or other tax benefit
actually and currently realized that is attributable to such base amount or Tax, shall net such payee the full amount of such base amount. 

“Agreement” and “Participation Agreement” mean that certain Participation Agreement ([REG. NO.]), dated on
or before the Closing Date, among the Company, WTNA, the Pass 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

 
Through Trustee under each Pass Through Trust Agreement, the Subordination Agent and the Loan Trustee, as the same may be amended, supplemented or otherwise modified from time to time in
accordance with its terms. 
 “Aircraft” means the Airframe (or any Substitute Airframe or Replacement Airframe substituted
therefor pursuant to Section 7.04 or Section 7.05, respectively, of the Indenture) together with the two Engines described in the Indenture Supplement originally executed and delivered under the Indenture (or any Replacement Engine that
may from time to time be substituted for any of such Engines pursuant to Section 7.04 or Section 7.05 of the Indenture), whether or not any of such initial or substituted Engines is from time to time installed on such Airframe or installed
on any other airframe or on any other aircraft. The term “Aircraft” includes any Replacement Aircraft. 
 “Aircraft
Protocol” means the official English language text of the Protocol to the Convention on International Interests in Mobile Equipment on Matters Specific to Aircraft Equipment, adopted on November 16, 2001, at a diplomatic conference in
Cape Town, South Africa, and all amendments, supplements, and revisions thereto (and from and after the effective date of the Cape Town Treaty in the relevant country, means when referring to the Aircraft Protocol with respect to that country, the
Aircraft Protocol as in effect in such country, unless otherwise indicated). 
 “Airframe” means (a) the Airbus
[Model] (generic model [Generic Model]) aircraft (except (i) the Engines or engines from time to time installed thereon and any and all Parts related to such Engine or engines and (ii) Excluded Equipment) specified on Annex A
to the Indenture Supplement originally executed and delivered under the Indenture and (b) any and all related Parts. The term “Airframe” includes any Substitute Airframe or Replacement Airframe that is substituted for the
Airframe pursuant to Section 7.04 or Section 7.05, respectively, of the Indenture. At such time as any Substitute Airframe or Replacement Airframe is so substituted and the Airframe for which such substitution is made is released from the
Lien of the Indenture, such replaced Airframe shall cease to be an Airframe under the Indenture. 
 “Appraisers” has the
meaning set forth in the Intercreditor Agreement. 
 “Bankruptcy Code” means the United States Bankruptcy Code, 11 United
States Code §§101 et seq., as amended from time to time, or any successor statutes thereto. 
 “Basic Pass Through Trust
Agreement” means that certain Pass Through Trust Agreement, dated as of August 11, 2015, between the Company 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 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, if different from the foregoing, the city and state in which the Loan Trustee, any Pass Through Trustee or the Subordination Agent
maintains its Corporate Trust Office or receives and disburses funds. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 2 

 “Cape Town Convention” means the official English language text of the
Convention on International Interests in Mobile Equipment, adopted on November 16, 2001, at a diplomatic conference in Cape Town, South Africa, and all amendments, supplements, and revisions thereto (and from and after the effective date of the
Cape Town Treaty in the relevant country, means when referring to the Cape Town Convention with respect to that country, the Cape Town Convention as in effect in such country, unless otherwise indicated). 

“Cape Town Treaty” means, collectively, the official English language text of (a) the Convention on International
Interests in Mobile Equipment, and (b) the Protocol to the Convention on International Interests in Mobile Equipment on Matters Specific to Aircraft Equipment, in each case adopted on November 16, 2001, at a diplomatic conference in
Cape Town, South Africa, and from and after the effective date of the Cape Town Treaty in the relevant country, means when referring to the Cape Town Treaty with respect to that country, the Cape Town Treaty as in effect in such country, unless
otherwise indicated, and (c) all rules and regulations adopted pursuant thereto and, in the case of each of the foregoing described in clauses (a) through (c), all amendments, supplements, and revisions thereto. 

“Certificated Air Carrier” means a Citizen of the United States holding an air carrier operating certificate issued by the
Secretary of Transportation pursuant to Chapter 447 of Title 49 of the United States Code for aircraft capable of carrying ten or more individuals or 6,000 pounds or more of cargo or that otherwise is certified or registered to the extent required
to fall within the purview of Section 1110. 
 “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. 

“Claim” has the meaning specified in Section 4.02(a) of the Participation Agreement. 

“Class A Certificates” means Pass Through Certificates issued by the Class A Pass Through Trust. 

“Class A Liquidity Facility” has the meaning set forth in the Intercreditor Agreement. 

“Class A Liquidity Provider” has the meaning set forth in the Intercreditor Agreement. 

“Class A Pass Through Trust” means the Spirit Airlines Pass Through Trust 2015-1A created pursuant to the Basic Pass Through
Trust Agreement, as supplemented by Trust Supplement No. 2015-1A, dated as of the Issuance Date, between the Company and WTNA, as Class A Trustee. 

“Class A Trustee” means the trustee for the Class A Pass Through Trust. 

“Class B Certificates” means Pass Through Certificates issued by the Class B Pass Through Trust. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 3 

 “Class B Liquidity Facility” has the meaning set forth in the Intercreditor
Agreement. 
 “Class B Liquidity Provider” has the meaning set forth in the Intercreditor Agreement. 

“Class B Pass Through Trust” means the Spirit Airlines Pass Through Trust 2015-1B created pursuant to the Basic Pass Through
Trust Agreement, as supplemented by Trust Supplement No. 2015-1B, dated as of the Issuance Date, between the Company and WTNA, as Class B Trustee. 

“Class B Trustee” means the trustee for the Class B Pass Through Trust. 

“Closing” has the meaning specified in Section 2.03 of the Participation Agreement. 

“Closing Date” means the date of the closing of the transaction contemplated by the Operative Documents. 

“Code” means the Internal Revenue Code of 1986, as amended from time to time. 

“Collateral” has the meaning specified in the granting clause of the Indenture. 

“Company” means Spirit Airlines, Inc., and its successors and permitted assigns. 

“Compulsory Acquisition” means requisition of title or other compulsory acquisition, capture, seizure, deprivation,
confiscation or detention for any reason of the Aircraft, the Airframe or any Engine by any government that results in the loss of title or use of the Aircraft, the Airframe or any Engine by the Company (or any Permitted Lessee) for a period in
excess of 180 consecutive days, but shall exclude requisition for use or hire not involving requisition of title. 
 “Confidential
Information” has the meaning specified in Section 10.16 of the Indenture. 
 “Controlling Party” has the
meaning specified in Section 2.06 of the Intercreditor Agreement. 
 “Corporate Trust Office” has the meaning
specified in Section 1.01 of the Intercreditor Agreement. 
 “CRAF Program” means the Civil Reserve Air Fleet Program
authorized under 10 U.S.C. Section 9511 et seq. or any similar or substitute program under the laws of the United States. 

“Debt Rate” means (i) with respect to any Series of Equipment Notes, the rate per annum specified for the
applicable Series as such in Schedule I to the Indenture (as amended, in the case of any Additional Series, new Series B Equipment Notes or new Additional Series issued pursuant to Section 2.02 of the Indenture, at the time of issuance of such
Series), and (ii) for any other purpose, with respect to any period, the weighted average interest rate per annum during such period borne by the outstanding Equipment Notes, excluding in each case any interest payable at the Past Due
Rate. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 4 

 “Defaulted Operative Indenture” means any Operative Indenture (the terms
“Event of Default”, “Equipment Notes” and “Payment Default” used in this definition have the meanings specified therefor in such Operative Indenture) with respect to which (i) a Payment Default has occurred
and is continuing or an Event of Default described in Section 4.01(a) of such Operative Indenture has occurred and is continuing or (ii) an Event of Default other than an Event of Default described in Section 4.01(a) of such
Operative Indenture has occurred and is continuing and, in any such case, either (x) the Equipment Notes issued thereunder have been accelerated and such acceleration has not been rescinded and annulled in accordance therewith or
(y) the loan trustee under such Operative Indenture has given the Company a notice of its intention to exercise one or more of the remedies specified in Section 4.02(a) of such Operative Indenture; provided that in the event
of a bankruptcy proceeding under the Bankruptcy Code under which the Company is a debtor, if and so long as the trustee or the debtor agrees to perform and performs all obligations of the Company under such Operative Indenture and the Equipment
Notes issued thereunder in accordance with Section 1110(a)(2) of the Bankruptcy Code and cures defaults under such Operative Indentures and Equipment Notes to the extent required by Section 1110(a)(2) of the Bankruptcy Code, such Operative
Indenture shall not be a Defaulted Operative Indenture. 
 “Department of Transportation” means the United States
Department of Transportation and any agency or instrumentality of the United States government succeeding to its functions. 

“Deposit Agreement” means, subject to Section 5(f) of the Note Purchase Agreement, each of the two Deposit Agreements,
dated as of the Issuance Date, between the Escrow Agent and the Depositary, which relate to the Class A Pass Through Trust or the Class B Pass Through Trust, respectively; provided that, for purposes of any obligation of the Company, no
amendment, modification or supplement to, or substitution or replacement of, any such Deposit Agreement shall be effective unless consented to by the Company. 

“Depositary” means, subject to Section 5(f) of the Note Purchase Agreement, Natixis, a French société
anonyme, acting via its New York Branch, as Depositary under each Deposit Agreement. 
 “Direction” has the meaning
specified in Section 2.16 of the Indenture. 
 “Dollars” and “$” mean the lawful currency of the
United States. 
 “Eligible Account” means an account established by and with an Eligible Institution at the request of the
Loan Trustee, which institution agrees, for all purposes of the NY UCC including Article 8 thereof, that (a) such account shall be a “securities account” (as defined in Section 8-501(a) of the NY UCC), (b) such
institution is a “securities intermediary” (as defined in Section 8-102(a)(14) of the NY UCC), (c) all property (other than cash) credited to such account shall be treated as a “financial asset” (as defined in
Section 8-102(a)(9) of the NY UCC), (d) the Loan Trustee shall be the “entitlement holder” (as defined in Section 8-102(a)(7) of the NY UCC) in respect of such account, (e) it will comply with all
entitlement orders issued by the Loan Trustee to the exclusion of the Company, (f) it will waive or subordinate in favor of the 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 5 

 
Loan Trustee all claims (including, without limitation, claims by way of security interest, lien or right of set-off or right of recoupment), and (g) the “securities intermediary
jurisdiction” (under Section 8-110(e) of the NY UCC) shall be the State of New York. 
 “Eligible Institution”
means the corporate trust department of (a) WTNA or any other Person that becomes a successor Loan Trustee under the Indenture, in each case, acting solely in its capacity as a “securities intermediary” (as defined in
Section 8-102(a)(14) of the NY UCC), 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) from either Fitch or S&P of at least A-. 

“Engine” means (a) each of the two [Engine Manufacturer and Model] engines (generic manufacturer and model
[Generic Manufacturer and Model]) listed by manufacturer’s serial number and further described on Annex A to the Indenture Supplement originally executed and delivered under the Indenture, whether or not from time to time installed on the
Airframe or installed on any other airframe or on any other aircraft and (b) any Replacement Engine substituted for an Engine pursuant to Section 7.04 or 7.05 of the Indenture; together in each case with any and all related Parts
but excluding Excluded Equipment. At such time as a Replacement Engine is so substituted and the Engine for which substitution is made is released from the Lien of the Indenture, such replaced Engine shall cease to be an Engine under the Indenture.

 “Equipment Note” means and includes any equipment notes issued under the Indenture in the form specified in
Section 2.01 thereof (as such form may be varied pursuant to the terms of the Indenture) and any Equipment Note issued in exchange therefor or replacement thereof pursuant to Section 2.07 or 2.08 of the Indenture. 

“Equipment Note Register” has the meaning specified in Section 2.07 of the Indenture. 

“Equipment Note Registrar” has the meaning specified in Section 2.07 of the Indenture. 

“ERISA” means the Employee Retirement Income Security Act of 1974, as amended from time to time, and the regulations
promulgated and rulings issued thereunder. Section references to ERISA are to ERISA as in effect at the date of the Participation Agreement and any subsequent provisions of ERISA amendatory thereof, supplemental thereto or substituted therefor. 

“Escrow Agent” means Wilmington Trust Company, a Delaware trust company, as escrow agent under each Escrow Agreement, or any
successor agent thereto. 
 “Escrow Agreement” means each of the two Escrow and Paying Agent Agreements, dated as of the
Issuance Date, among the Escrow Agent, the Paying Agent, the Underwriters and the applicable Pass Through Trustee, which relate to the Class A Pass Through Trust or the Class B Pass Through Trust, respectively; provided that, for
purposes of any obligation of the Company, no amendment, modification or supplement to, or substitution or replacement of, any such Escrow Agreement shall be effective unless consented to by the Company. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 6 

 “Event of Default” has the meaning specified in Section 4.01 of the
Indenture. 
 “Event of Loss” means, with respect to the Aircraft, Airframe or any Engine, any of the following events with
respect to such property: 
 (a) the loss of such property or of the use thereof due to destruction, damage beyond repair or rendition of
such property permanently unfit for normal use for any reason whatsoever; 
 (b) any damage to such property which results in an insurance
settlement with respect to such property on the basis of a total loss, a compromised total loss or a constructive total loss; 
 (c) the
theft, hijacking or disappearance of such property for a period in excess of 180 consecutive days; 
 (d) the requisition for use or hire of
such property by any government (other than a requisition for use or hire by a Government or the government of the country of registry of the Aircraft) that results in the loss of possession of such property by the Company (or any Permitted Lessee)
for a period in excess of 12 consecutive months; 
 (e) the operation or location of the Aircraft, while under requisition for use by any
government, in any area excluded from coverage by any insurance policy in effect with respect to the Aircraft required by the terms of Section 7.06 of the Indenture, unless the Company shall have obtained indemnity or insurance in lieu thereof
from such government; 
 (f) any Compulsory Acquisition; 

(g) as a result of any law, rule, regulation, order or other action by the FAA or other government of the country of registry, the use of the
Aircraft or Airframe in the normal business of air transportation is prohibited by virtue of a condition affecting all aircraft of the same type for a period of 18 consecutive months, unless the Company is diligently carrying forward all steps that
are necessary or desirable to permit the normal use of the Aircraft or Airframe or, in any event, if such use is prohibited for a period of three consecutive years; and 

(h) with respect to an Engine only, any divestiture of title to or interest in an Engine or any event with respect to an Engine that is deemed
to be an Event of Loss with respect to such Engine pursuant to Section 7.02(a)(vii) of the Indenture. 
 An Event of Loss with respect
to the Aircraft shall be deemed to have occurred if an Event of Loss occurs with respect to the Airframe unless the Company elects to substitute a Replacement Airframe pursuant to Section 7.05(a)(i) of the Indenture. 

“Excluded Equipment” means (i) defibrillators, enhanced emergency medical kits and other medical equipment,
(ii) airphones and other components or systems installed on or affixed 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 7 

 
to the Airframe that are used to provide individual telecommunications or electronic entertainment to passengers aboard the Aircraft, (iii) galley carts, beverage carts, waste
containers, liquor kits, food tray carriers, ice containers, oven inserts, galley inserts, and other branded passenger convenience or service items, (iv) any items, equipment or systems leased by the Company or any Permitted Lessee
(other than items, equipment, or systems that are leased from the Company pursuant to the applicable Lease) or owned by the Company or any Permitted Lessee subject to a conditional sales agreement or a security interest (other than the security
interest granted under the Indenture), and (v) cargo containers. 
 “FAA” means the United States Federal
Aviation Administration and any agency or instrumentality of the United States government succeeding to its functions. 
 “FAA Bill
of Sale” means the bill of sale for the Aircraft on AC Form 8050-2 executed by Manufacturer or an affiliate of Manufacturer in favor of the Company and recorded with the FAA. 

“Federal Funds 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 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 such day (or, if such day is not a Business Day, for the
next 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 WTNA from three Federal funds
brokers of recognized standing selected by it. 
 “Fitch” means Fitch Ratings, Inc. 

“Government” means the government of any of Canada, France, Germany, Japan, The Netherlands, Sweden, Switzerland, the United
Kingdom or the United States and any instrumentality or agency thereof. 
 “Indemnitee” has the meaning specified in
Section 4.02(b) of the Participation Agreement. 
 “Indenture” means that certain Indenture and Security Agreement
([REG. NO.]), dated as of the Closing Date, between the Company and the Loan Trustee, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms, including supplementation by an Indenture Supplement
pursuant to the Indenture. 
 “Indenture Indemnitee” means (i) the Loan Trustee, (ii) WTNA,
(iii) each separate or successor or additional trustee appointed pursuant to Section 8.02 of the Indenture, (iv) so long as it holds any Equipment Notes as agent and trustee of any Pass Through Trustee, the Subordination
Agent, (v) each Liquidity Provider, (vi) so long as it is the holder of any Equipment Notes, each Pass Through Trustee, (vii) the Paying Agent, (viii) the Escrow Agent, and (ix) any of
their respective successors and permitted assigns in such capacities, directors, officers, employees, agents and servants. No holder of a Pass Through Certificate in its capacity as such shall be an Indenture Indemnitee. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 8 

 “Indenture Supplement” means a supplement to the Indenture, substantially in the
form of Exhibit A to the Indenture, which particularly describes the Aircraft, and any Substitute Airframe, Replacement Airframe and/or Replacement Engine, included in the property subject to the Lien of the Indenture. 

“Intercreditor Agreement” means that certain Intercreditor Agreement, dated as of the Issuance Date, among the Pass Through
Trustees, the Liquidity Providers and the Subordination Agent, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms; provided that, for purposes of any obligations of the Company, no
amendment, modification or supplement to, or substitution or replacement of, such Intercreditor Agreement shall be effective unless consented to by the Company. 

“Interests” has the meaning specified in Section 7.06(a) of the Indenture. 

“International Interest” has the meaning ascribed to the defined term “international interest” under the Cape Town
Treaty. 
 “International Registry” means the international registry established pursuant to the Cape Town Treaty. 

“Issuance Date” means August 11, 2015. 

“Lease” means any lease permitted by the terms of Section 7.02(a) of the Indenture. 

“Lien” means any mortgage, pledge, lien, encumbrance, lease, sublease, sub-sublease or security interest. 

“Liquidity Facilities” means, collectively, the Class A Liquidity Facility and the Class B Liquidity Facility. 

“Liquidity Providers” means, collectively, Class A Liquidity Provider and Class B Liquidity Provider. 

“Loan Amount” has the meaning specified in Section 7.06(b) of the Indenture. 

“Loan Trustee” has the meaning specified in the introductory paragraph of the Indenture. 

“Loan Trustee Liens” means any Lien attributable to WTNA or the Loan Trustee with respect to the Aircraft, any interest
therein or any other portion of the Collateral arising as a result of (i) claims against WTNA or the Loan Trustee not related to its interest in the Aircraft or the administration of the Collateral pursuant to the Indenture,
(ii) acts of WTNA or the Loan Trustee not permitted by, or the failure of WTNA or the Loan Trustee to take any action required by, the Operative Documents or the Pass Through Documents, (iii) claims against WTNA or the

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 9 

 
Loan Trustee relating to Taxes or Claims that are excluded from the indemnification provided by Section 4.02 of the Participation Agreement pursuant to said Section 4.02 or
(iv) claims against WTNA or the Loan Trustee arising out of the transfer by any such party of all or any portion of its interest in the Aircraft, the Collateral, the Operative Documents or the Pass Through Documents, except while an
Event of Default is continuing and prior to the time that the Loan Trustee has received all amounts due to it pursuant to the Indenture. 

“Long-Term Rating” has the meaning specified in the Intercreditor Agreement. 

“Loss Payment Date” has the meaning specified in Section 7.05(a) of the Indenture. 

“Majority in Interest of Noteholders” means, as of a particular date of determination and subject to Section 2.16 of the
Indenture, the holders of at least a majority in aggregate unpaid principal amount of all Equipment Notes outstanding as of such date (excluding any Equipment Notes held by the Company or any Affiliate thereof, it being understood that a Pass
Through Trustee shall be considered an Affiliate of the Company as long as more than 50% in the aggregate face amount of Pass Through Certificates issued by the corresponding Pass Through Trust are held and able to be voted by the Company or an
Affiliate of the Company or a Pass Through Trustee is otherwise under the control of the Company or such Affiliate of the Company (unless all Equipment Notes then outstanding are held by the Company or any Affiliate thereof, including the Pass
Through Trustees which are considered Affiliates of the Company pursuant hereto); provided that for the purposes of directing any action or casting any vote or giving any consent, waiver or instruction hereunder, any Noteholder of an
Equipment Note or Equipment Notes may allocate, in such Noteholder’s sole discretion, any fractional portion of the principal amount of such Equipment Note or Equipment Notes in favor of or in opposition to any such action, vote, consent,
waiver or instruction. 
 “Make-Whole Amount” means, with respect to any Equipment Note, the amount (as determined by an
independent investment banker selected by the Company (and, following the occurrence and during the continuance of an Event of Default, reasonably acceptable to the Loan Trustee)), if any, by which (i) the present value of the remaining
scheduled payments of principal and interest from the redemption date to maturity of such Equipment Note computed by discounting each such payment on a semiannual basis from its respective Payment Date (assuming a 360-day year of twelve 30 day
months) using a discount rate equal to the Treasury Yield plus the Make-Whole Spread exceeds (ii) the outstanding principal amount of such Equipment Note plus accrued but unpaid interest thereon to the date of redemption. For purposes of
determining the Make-Whole Amount, “Treasury Yield” means, at the date of determination, the interest rate (expressed as a semiannual equivalent and as a decimal rounded to the number of decimal places as appears in the Debt Rate of
such Equipment Note and, in the case of United States Treasury bills, converted to a bond equivalent yield) determined to be the per annum rate equal to the semiannual yield to maturity for United States Treasury securities maturing on the Average
Life Date and trading in the public securities market either as determined by interpolation between the most recent weekly average constant maturity, non-inflation-indexed series yield to maturity for two series of United States Treasury securities,
trading in the public securities markets, (A) one maturing as close as possible to, but earlier than, 

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 10 

 
the Average Life Date and (B) the other maturing as close as possible to, but later than, the Average Life Date, in each case as reported in the most recent H.15(519) or, if a weekly
average constant maturity, non-inflation indexed series yield to maturity for United States Treasury securities maturing on the Average Life Date is reported in the most recent H.15(519), such weekly average yield to maturity as reported in such
H.15(519). “H.15(519)” means the weekly statistical release designated as such, or any successor publication, published by the Board of Governors of the Federal Reserve System. The date of determination of a Make-Whole Amount shall
be the third Business Day prior to the applicable redemption date and the “most recent H.15(519)” means the latest H.15(519) published prior to the close of business on the third Business Day prior to the applicable redemption date.
“Average Life Date” means, for each Equipment Note to be redeemed, the date which follows the redemption date by a period equal to the Remaining Weighted Average Life at the redemption date of such Equipment Note. “Remaining
Weighted Average Life” of an Equipment Note, at the redemption date of such Equipment Note, means the number of days equal to the quotient obtained by dividing: (i) the sum of the products obtained by multiplying
(A) the amount of each then remaining installment of principal, including the payment due on the maturity date of such Equipment Note, by (B) the number of days from and including the redemption date to but excluding the
scheduled Payment Date of such principal installment by (ii) the then unpaid principal amount of such Equipment Note. 

“Make-Whole Spread” means, with respect to any Series of Equipment Notes, the percentage specified for the applicable Series
as such in Schedule I to the Indenture (as amended, in the case of any Additional Series, new Series B Equipment Notes or new Additional Series issued pursuant to Section 2.02 of the Indenture, at the time of issuance of such Series). 

“Manufacturer” means Airbus S.A.S., a société par actions simplifiée organized and existing under
the laws of the Republic of France, and its successors and assigns. 
 “Manufacturer’s Consent” means the Airframe
Warranties Agreement [Reg. No.], dated the Closing Date, substantially in the form of Exhibit D to the Participation Agreement. 

“MCMV” has the meaning specified in Section 7.04(e) of the Indenture. 

“Noteholder” means any Person in whose name an Equipment Note is registered on the Equipment Note Register (including, for so
long as it is the registered holder of any Equipment Notes, the Subordination Agent on behalf of the Pass Through Trustees pursuant to the provisions of the Intercreditor Agreement). 

“Noteholder Liens” means any Lien attributable to any Noteholder on or against the Aircraft, any interest therein or any
other portion of the Collateral, arising out of any claim against such Noteholder that is not related to the Operative Documents or Pass Through Documents, or out of any act or omission of such Noteholder that is not related to the transactions
contemplated by, or that constitutes a breach by such Noteholder of its obligations under, the Operative Documents or the Pass Through Documents. 

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 11 

 “Note Purchase Agreement” means the Note Purchase Agreement, dated as of the
Issuance Date, among the Company, the Subordination Agent, the Escrow Agent, the Paying Agent and the Pass Through Trustees providing for, among other things, the issuance and sale of certain equipment notes, as the same may be amended, supplemented
or otherwise modified from time to time in accordance with its terms. 
 “NY UCC” means UCC as in effect in the State of
New York. 
 “Operative Documents” means, collectively, the Participation Agreement, the Indenture, each Indenture
Supplement, the Manufacturer’s Consent and the Equipment Notes. 
 “Operative Indentures” means, as of any date, each
“Indenture” (as such term is defined in the Note Purchase Agreement), including the Indenture, whether or not any other “Indenture” shall have been entered into before or after the date of the Indenture, but only if as of such
date all “Equipment Notes” (as defined in each such “Indenture”) are held by the “Subordination Agent” under the “Intercreditor Agreement”, as such terms are defined in each such “Indenture”. 

“Other Party Liens” means any Lien attributable to any Pass Through Trustee (other than in its capacity as Noteholder), the
Subordination Agent (other than in its capacity as Noteholder) or any Liquidity Provider on or against the Aircraft, any interest therein, or any other portion of the Collateral arising out of any claim against such party that is not related to the
Operative Documents or Pass Through Documents, or out of any act or omission of such party that is not related to the transactions contemplated by, or that constitutes a breach by such party of its obligations under, the Operative Documents or the
Pass Through Documents. 
 “Participation Agreement” has the meaning set forth under the definition of
“Agreement”. 
 “Parts” means any and all appliances, parts, instruments, appurtenances, accessories, furnishings
and other equipment of whatever nature (other than (a) complete Engines or engines and (b) Excluded Equipment), so long as the same are incorporated or installed in or attached to the Airframe or any Engine or so long as the
same are subject to the Lien of the Indenture in accordance with the terms of Section 7.04 thereof after removal from the Airframe or any Engine. 

“Pass Through Certificates” means the pass through certificates issued by any Pass Through Trust (and any other pass through
certificates for which such pass through certificates may be exchanged). 
 “Pass Through Documents” means each Pass
Through Trust Agreement, the Note Purchase Agreement, each Escrow Agreement, each Deposit Agreement, the Intercreditor Agreement and each Liquidity Facility. 

“Pass Through Trust” means each of the two separate grantor trusts that have been created pursuant to the Pass Through Trust
Agreements to facilitate certain of the transactions contemplated by the Operative Documents. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 12 

 “Pass Through Trust Agreement” means each of the two separate Trust Supplements
relating to the Pass Through Trusts, together in each case with the Basic Pass Through Trust Agreement, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Pass Through Trustee” means the trustee under each Pass Through Trust Agreement, together with any successor in interest and
any successor or other trustee appointed as provided in such Pass Through Trust Agreement. 
 “Past Due Rate” means the
lesser of (a) with respect to (i) any payment made to a Noteholder under any Series of Equipment Notes, the Debt Rate then applicable to such Series plus 1% and (ii) any other payment made under any Operative
Document to any other Person, the Debt Rate plus 1% (computed on the basis of a year of 360 days comprised of twelve 30-day months) and (b) the maximum rate permitted by applicable law. 

“Paying Agent” means WTNA, as paying agent under each Escrow Agreement, and any successor agent thereto. 

“Payment Date” means, for any Equipment Note, each April 1 and October 1, commencing with the first such date to
occur after the issuance of such Equipment Note. 
 “Payment Default” means the occurrence of an event that would give rise
to an Event of Default under Section 4.01(a) of the Indenture upon the giving of notice or the passing of time or both. 

“Permitted Investments” means each of (a) direct obligations of the United States and agencies thereof;
(b) obligations fully guaranteed by the United States; (c) certificates of deposit issued by, or bankers’ acceptances of, or time deposits with, any bank, trust company or national banking association incorporated or
doing business under the laws of the United States or one of the states thereof having combined capital and surplus and retained earnings of at least $100,000,000 and having a Long-Term Rating of A, its equivalent or better issued by Fitch or
S&P (or, if neither such organization then rates such institutions, by any nationally recognized rating organization in the United States); (d) commercial paper of any holding company of a bank, trust company or national banking
association described in clause (c); (e) commercial paper of companies having a Short-Term Rating assigned to such commercial paper by either Fitch or S&P (or, if neither such organization then rates such commercial paper, by any
nationally recognized rating organization in the United States) equal to either of the two highest ratings assigned by such organization; (f) Dollar-denominated certificates of deposit issued by, or time deposits with, the European
subsidiaries of (i) any bank, trust company or national banking association described in clause (c), or (ii) any other bank or financial institution described in clause (g), (h) or (j) below; (g) United
States-issued Yankee certificates of deposit issued by, or bankers’ acceptances of, or commercial paper issued by, any bank having combined capital and surplus and retained earnings of at least $100,000,000 and headquartered in Canada, Japan,
the United Kingdom, France, Germany, Switzerland or The Netherlands and having a Long-Term Rating of A, its equivalent or better issued by Fitch or S&P (or, if neither such 

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 13 

 
organization then rates such institutions, by any nationally recognized rating organization in the United States); (h) Dollar-denominated time deposits with any Canadian bank having a
combined capital and surplus and retained earnings of at least $100,000,000 and having a Long-Term Rating of A, its equivalent or better issued by Fitch or S&P (or, if neither such organization then rates such institutions, by any nationally
recognized rating organization in the United States); (i) Canadian Treasury Bills fully hedged to Dollars; (j) repurchase agreements with any financial institution having combined capital and surplus and retained earnings of
at least $100,000,000 collateralized by transfer of possession of any of the obligations described in clauses (a) through (i) above; (k) bonds, notes or other obligations of any state of the United States, or any political
subdivision of any state, or any agencies or other instrumentalities of any such state, including, but not limited to, industrial development bonds, pollution control revenue bonds, public power bonds, housing bonds, other revenue bonds or any
general obligation bonds, that, at the time of their purchase, such obligations have a Long-Term Rating of A, its equivalent or better issued by Fitch or S&P (or, if neither such organization then rates such obligations, by any nationally
recognized rating organization in the United States); (1) bonds or other debt instruments of any company, if such bonds or other debt instruments, at the time of their purchase, have a Long-Term Rating of A, its equivalent or better
issued by Fitch or S&P (or, if neither such organization then rates such obligations, by any nationally recognized rating organization in the United States); (m) mortgage backed securities (i) guaranteed by the Federal
National Mortgage Association, the Federal Home Loan Mortgage Corporation or the Government National Mortgage Association or having a Long-Term Rating of AAA, its equivalent or better issued by Fitch or S&P (or, if neither such organization then
rates such obligations, by any nationally recognized rating organization in the United States) or, if unrated, deemed to be of a comparable quality by the Loan Trustee and (ii) having an average life not to exceed one year as determined
by standard industry pricing practices presently in effect; (n) asset-backed securities having a Long-Term Rating of A, its equivalent or better issued by Fitch or S&P (or, if neither such organization then rates such obligations, by
any nationally recognized rating organization in the United States) or, if unrated, deemed to be of a comparable quality by the Loan Trustee; and (o) such other investments approved in writing by the Loan Trustee; provided that
the instruments described in the foregoing clauses shall have a maturity no later than the earlier of (i) 365 days following the date of such investments and (ii) the earliest date when such investments may be required for distribution.
The bank acting as Pass Through Trustee or Loan Trustee is hereby authorized, in making or disposing of any investment described herein, to deal with itself (in its individual capacity) or with any one or more of its affiliates, whether it or such
affiliate is acting as an agent of the Pass Through Trustee or the Loan Trustee or for any third person or dealing as principal for its own account. 

“Permitted Lessee” means any Person to whom the Company is permitted to lease the Airframe or any Engine pursuant to
Section 7.02(a) of the Indenture and is a party to a Lease. 
 “Permitted Lien” has the meaning specified in
Section 7.01 of the Indenture. 
 “Person” means any person, including 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. 

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 14 

 “Prospective International Interest” has the meaning ascribed to the defined
term “prospective international interest” under the Cape Town Treaty. 
 “Purchase Agreement” means the A320
Family Purchase Agreement, dated as of May 5, 2004, between the Company and the Manufacturer, as the same may be amended, supplemented or otherwise modified from time to time in accordance with its terms. 

“Rating Agencies” has the meaning specified in the Intercreditor Agreement. 

“Related Additional Series Equipment Note” means, with respect to any particular Series of Additional Series Equipment Notes
and as of any date, an “Additional Series Equipment Note”, as defined in each Related Indenture, having the same designation (i.e., “Series C”, “Series D” or the like) as such Series of Additional Series
Equipment Notes, but only if as of such date it is held by the “Subordination Agent” under the “Intercreditor Agreement”, as such terms are defined in such Related Indenture. 

“Related Equipment Note” means, as of any date, an “Equipment Note” as defined in each Related Indenture, but only
if as of such date it is held by the “Subordination Agent” under the “Intercreditor Agreement”, as such terms are defined in such Related Indenture. 

“Related Indemnitee Group” has the meaning specified in Section 4.02(b) of the Participation Agreement. 

“Related Indenture” means each Operative Indenture (other than the Indenture). 

“Related Indenture Bankruptcy Default” means any “Event of Default” under Section 4.01(f), (g), (h) or
(i) of any Related Indenture, determined without giving effect to any applicable grace period. 
 “Related Indenture Event of
Default” means any “Event of Default” under any Related Indenture. 
 “Related Indenture Indemnitee”
means each Related Noteholder. 
 “Related Loan Trustee” means the “Loan Trustee” as defined in each Related
Indenture. 
 “Related Make-Whole Amount” means the “Make-Whole Amount”, as defined in each Related Indenture.

 “Related Noteholder” means a registered holder of a Related Equipment Note. 

“Related Secured Obligations” means, as of any date, the outstanding principal amount of the Related Equipment Notes issued
under each Related Indenture, the accrued and unpaid interest (including, to the extent permitted by applicable law, post-petition interest and interest on any overdue amounts) due thereon in accordance with such Related Indenture as of such date,
the Related Make-Whole Amount, if any, with respect thereto due thereon in accordance with such Related Indenture as of such date, and any other amounts payable as of such date under the “Operative Documents” (as defined in each Related
Indenture). 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 15 

 “Related Series A Equipment Note” means, as of any date, a “Series A
Equipment Note”, as defined in each Related Indenture, but only if as of such date it is held by the “Subordination Agent” under the “Intercreditor Agreement”, as such terms are defined in such Related Indenture. 

“Related Series B Equipment Note” means, as of any date, a “Series B Equipment Note”, as defined in each Related
Indenture, but only if as of such date it is held by the “Subordination Agent” under the “Intercreditor Agreement”, as such terms are defined in such Related Indenture. 

“Replacement Aircraft” means the Aircraft of which a Replacement Airframe is part. 

“Replacement Airframe” means an Airbus [A320-200]4[A321-200]5 aircraft or a comparable or improved model of Manufacturer (except (a) Engines or engines from time to time installed thereon and any and all Parts related to such Engine or engines and
(b) Excluded Equipment), that shall have been made subject to the Lien of the Indenture pursuant to Section 7.05 thereof, together with all Parts relating to such aircraft. 

“Replacement Engine” means a [Engine Manufacturer and Model] engine (or an engine of the same or another manufacturer of a
comparable or an improved model and suitable for installation and use on the Airframe with the other Engine (or any other Replacement Engine being substituted simultaneously therewith)) that is made subject to the Lien of the Indenture pursuant to
Section 7.04 or Section 7.05 thereof, together with all Parts relating to such engine. 
 “Replacement Liquidity
Facility” has the meaning set forth in the Intercreditor Agreement. 
 “Replacement Liquidity Provider” has the
meaning set forth in the Intercreditor Agreement. 
 “Responsible Officer” means, with respect to the Company, its Chairman
of the Board, its President, its Chief Operating Officer, any Executive Vice President, any Senior Vice President, the Chief Financial Officer, any Vice President, the Treasurer, the Assistant Treasurer, the Controller or the Secretary. 

“S&P” means Standard & Poor’s Ratings Services, a Standard & Poor’s Financial Services LLC
business. 
 “Section 1110” means Section 1110 of the Bankruptcy Code. 

 

	4 	To be inserted for an A320-200 aircraft. 

	5 	To be inserted for an A321-200 aircraft. 

  
 Annex A (Spirit 2015-1
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 [Reg. No.] 

  
 16 

 “Secured Obligations” has the meaning specified in Section 2.06 of the
Indenture. 
 “Securities Account” has the meaning specified in Section 3.07 of the Indenture. 

“Securities Act” means the Securities Act of 1933, as amended from time to time. 

“Securities and Exchange Commission” means the United States Securities and Exchange Commission and any agency or
instrumentality of the United States government succeeding to its functions. 
 “Securities Intermediary” has the meaning
specified in Section 3.07 of the Indenture. 
 “Series” means any series of Equipment Notes, including the Series A
Equipment Notes, the Series B Equipment Notes or, if issued, any Additional Series Equipment Notes. 
 “Series A” or
“Series A Equipment Notes” means Equipment Notes issued and designated as “Series A Equipment Notes” under the Indenture, in the original principal amount and maturities as specified in Schedule I to the Indenture under
the heading “Series A Equipment Notes” and bearing interest at the Debt Rate for Series A Equipment Notes specified in Schedule I to the Indenture. 

“Series B” or “Series B Equipment Notes” means Equipment Notes issued and designated as “Series B
Equipment Notes” under the Indenture, in the original principal amount and maturities as specified in Schedule I to the Indenture under the heading “Series B Equipment Notes” and bearing interest at the Debt Rate for Series B
Equipment Notes specified in Schedule I to the Indenture. 
 “Short-Term Rating” has the meaning specified in the
Intercreditor Agreement. 
 “Similar Law” has the meaning specified in Section 4.02(d)(xi) of the Participation
Agreement. 
 “Specified Person” has the meaning specified in Section 7.06(a) of the Indenture. 

“Subordination Agent” has the meaning specified in the introductory paragraph of the Participation Agreement. 

“Substitute Airframe” means an Airbus [A320-200]6[A321-200]7 aircraft or a comparable or improved model of Manufacturer (except (a) Engines or engines from time to time installed thereon and any and all Parts related to such Engine or engines and
(b) Excluded Equipment), that shall have been made subject to the Lien of the Indenture pursuant to Section 7.04 thereof, together with all Parts relating to such aircraft. 

 

	6 	To be inserted for an A320-200 aircraft. 

	7 	To be inserted for an A321-200 aircraft. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 17 

 “Tax” and “Taxes” mean 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 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. 

“Transportation Code” means that portion of Title 49 of the United States Code comprising those provisions formerly referred
to as the Federal Aviation Act of 1958, as amended, or any subsequent legislation that amends, supplements or supersedes such provisions. 

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended from time to time. 

“Trust Supplements” means those agreements supplemental to the Basic Pass Through Trust Agreement referred to in Schedule II
to the Participation Agreement. 
 “UCC” means the Uniform Commercial Code as in effect in any applicable jurisdiction.

 “Underwriter” means each of the underwriters identified as such in the Underwriting Agreement. 

“Underwriting Agreement” means that certain Underwriting Agreement, dated July 28, 2015, among the Company and Citigroup
Global Markets, Inc., Morgan Stanley & Co. LLC and Credit Suisse Securities (USA) LLC, as representatives of the Underwriters listed on Schedule I thereto, as the same may be amended, supplemented or otherwise modified from time to time in
accordance with its terms. 
 “United States” means the United States of America. 

“Warranty Bill of Sale” means the warranty (as to title) bill of sale covering the Aircraft executed by Manufacturer or an
affiliate of Manufacturer in favor of the Company and specifically referring to each Engine, as well as the Airframe, constituting a part of the Aircraft. 

“Warranty Rights” means all right and interest of the Company in to and under the warranty rights given by Manufacturer in
respect of the Airframe to the Company pursuant to Clause 12 (Warranties and Service Life Policy) and Clause 13 (Trade Secret, Patent and Copyright Indemnity) of the Purchase Agreement, including all post-delivery rights in respect
thereof insofar as they relate to the Airframe, in each case, as are specifically set forth in the Manufacturer Consent, it being understood that the Warranty Rights exclude any and all other right, title and interest of the Company, in, to and
under the Purchase Agreement and that the Warranty Rights and the grant of a security interest therein are subject to the terms of the Manufacturer’s Consent. 

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
 18 

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

  
 Annex A (Spirit 2015-1
EETC) 
 [Reg. No.] 

  
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