Exhibit 10.8

CONFIDENTIAL MATERIAL APPEARING IN THIS DOCUMENT HAS BEEN OMITTED AND FILED
SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION IN ACCORDANCE WITH THE
SECURITIES ACT OF 1933, AS AMENDED, AND RULE 24B-2 PROMULGATED THEREUNDER.
OMITTED INFORMATION HAS BEEN REPLACED WITH ASTERISKS.

Supplemental Agreement No. 5

to

Purchase Agreement No. 3860

between

The Boeing Company

and

United Airlines, Inc.

Relating to Boeing Model 787 Aircraft

THIS SUPPLEMENTAL AGREEMENT, entered into as of April 30, 2015, by and between
THE BOEING COMPANY (Boeing) and UNITED AIRLINES, INC. (a Delaware corporation
formerly known as Continental Airlines, Inc. and successor by merger to United
Air Lines, Inc.) (Customer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 3860 dated
September 27, 2012, as amended and supplemented (Purchase Agreement), relating
to the purchase and sale of Boeing model 787 aircraft (Aircraft). This
Supplemental Agreement is an amendment to the Purchase Agreement;

WHEREAS, Boeing and Customer wish to *** the following firm 787-9 Aircraft ***
this Purchase Agreement:

 

Model

  

MSN

  

Delivery Month

787-9

   ***    ***

WHEREAS, Boeing and Customer agree to *** the following *** firm 787-***
Aircraft and *** them with *** 787-*** Aircraft in the same delivery months:

 

Model

  

*** Firm Aircraft MSN

  

*** Aircraft MSN

  

Delivery Month

***

   ***    TBD    ***

***

   ***    TBD    ***

WHEREAS, Boeing and Customer agree to apply *** firm Aircraft *** under this
Supplemental Agreement No. 05 *** for the *** new model 787-*** Aircraft added
under this Supplemental Agreement No. 05 and *** Customer’s *** for 787
aircraft.

 

UAL-PA-3860

  SA-5   Page 1 BOEING / UNITED AIRLINES, INC. PROPRIETARY

--------------------------------------------------------------------------------

NOW THEREFORE, in consideration of the mutual covenants herein contained, the
parties agree to amend the Purchase Agreement as follows:

1. Table of Contents and Articles.

The “Table of Contents” is deleted in its entirety and replaced with the
attached “Table of Contents” (identified by “SA-5”).

2. Tables.

 

  2.1. “Table 1”, 787-9 Aircraft Delivery, Description, Price and Advance
Payments is deleted in its entirety.

 

  2.2. “Table 1”, 787-10 Aircraft with GENX-1B76 Engines Delivery, Description,
Price and Advance Payments, is deleted in its entirety and replaced with the
attached “Table 1”, 787-10 Aircraft with GENX-1B76 Engines Delivery,
Description, Price and Advance Payments, (identified by “SA-5”).

3. Letter Agreements.

 

  3.1. “Attachment B-1 to Letter Agreement UAL-PA-03860-LA-120965R1”, 787-10
Option Aircraft with GENX-1B*** Engines Delivery, Description, Price and Advance
Payments, is deleted in its entirety and replaced with the attached “Attachment
B1 to Letter Agreement UAL-PA-03860-LA-120965R1”, 787-10 Option Aircraft with
GENX-1B*** Engines Delivery, Description, Price and Advance Payments,
(identified by “SA-5”).

 

  3.2. Letter agreement “UAL-PA-03860-LA-1209413A1”, Special Matters — Amendment
1, is deleted in its entirety and replaced with the attached
“UAL-PA-03860-LA-1209413A1R1”, Special Matters — Amendment 1, (identified by
“SA-5”).

The Purchase Agreement will be deemed to be supplemented to the extent herein
provided as of the date hereof and as so supplemented will continue in full
force and effect.

 

UAL-PA-3860

SA-5 Page 2 BOEING / UNITED AIRLINES, INC. PROPRIETARY

--------------------------------------------------------------------------------

EXECUTED IN DUPLICATE as of the day and year first written above.

 

THE BOEING COMPANY UNITED AIRLINES, INC.

/s/ Patrick McKelvey

/s/ Gerald Laderman

Signature Signature

Attorney-in-Fact

Senior Vice President – Finance, Procurement and Treasurer

Title Title

 

UAL-PA-3860

SA-5 Page 3 BOEING / UNITED AIRLINES, INC. PROPRIETARY

--------------------------------------------------------------------------------

TABLE OF CONTENTS

 

     SA
NUMBER

ARTICLES

  

Article 1.

     Quantity, Model and Description    SA-1

Article 2.

     Delivery Schedule    SA-1

Article 3.

     Price    SA-1

Article 4.

     Payment    SA-1

Article 5.

     Additional Terms    SA-1 TABLE   

1.

     787-8 with GENX-1B*** Engines Aircraft Information Table ***    SA-3

1.

     787-9 with GENX-1B*** Engines Aircraft Information Table ***    SA-5

1.

     787-10 with GENX-1B*** Engines Aircraft Information Table    SA-5 EXHIBITS
  

A1.

     787-8 Aircraft Configuration   

A2.

     787-9 Aircraft Configuration    SA-4

A3.

     787-10 Aircraft Configuration    SA-1

B.

     Aircraft Delivery Requirements and Responsibilities    SUPPLEMENTAL
EXHIBITS   

AE1.

     Escalation Adjustment/Airframe and Optional Features   

BFE1.

     BFE Variables    SA-1

CS1.

     Customer Support Document   

EE1.

     Engine Escalation/Engine Warranty ***   

SLP1.

     Service Life Policy Components   

 

P.A. 3860

  TABLE OF CONTENTS, Page 1 of 5   SA-5 BOEING/UNITED AIRLINES, INC. PROPRIETARY

--------------------------------------------------------------------------------

TABLE OF CONTENTS, CONTINUED      SA
NUMBER

LETTER AGREEMENTS

     

UAL-PA-03860-LA-1209247

  

787 e-Enabling

  

UAL-PA-03860-LA-1209264

  

Open Configuration Matters

  

UAL-PA-03860-LA-1209265R1

  

Option Aircraft

   SA-1   

Attachment A, 787-*** Option Aircraft Delivery, Description, Price and Advance
Payments (DELETED)

   SA-1
  

Attachment B-1, 787-*** with GENX-1B*** Engines: Option Aircraft Delivery,
Description, Price and Advance Payments

   SA-5   

Attachment B-2, 787-*** with TRENT1000-*** Engines: Option Aircraft Delivery,
Description, Price and Advance Payments (DELETED)

   SA-3

UAL-PA-03860-LA-1209409

  

Spare Parts Initial Provisioning

  

UAL-PA-03860-LA-1209410

  

Special Matters Relating to COTS Software and End User License Agreements

  

UAL-PA-03860-LA-1209411

  

Special Terms – Seats and In-flight Entertainment

  

UAL-PA-03860-LA-1209417

  

Model 787 Post-Delivery Software & Data Loading

  

CONFIDENTIAL LETTER AGREEMENTS

  

UAL-PA-03860-LA-1209236R1

  

Model Substitution

   SA-1   

Attachment A, 787-9 Airframe Pricing of Substitution Aircraft with General
Electric GEnx-1B*** and Rolls Royce Trent 1000-*** engines

   SA-1   

Attachment B, 787-10 with General Electric GEnx-1B*** and Rolls Royce TRENT
1000-*** Engines

  
SA-1   

Attachment C, 787-8 with General Electric GEnx-1B*** and Rolls Royce TRENT
1000-***

  
SA-1

 

P.A. 3860

  TABLE OF CONTENTS, Page 2 of 5   SA-5 BOEING / UNITED AIRLINES, INC.
PROPRIETARY

--------------------------------------------------------------------------------

TABLE OF CONTENTS, CONTINUED

 

    

SA
NUMBER

CONFIDENTIAL LETTER AGREEMENTS, continued       UAL-PA-03860-LA-1209412    Spare
Parts Commitment    UAL-PA-03860-LA-1209413R1    Special Matters    SA-1
UAL-PA-03860-LA-1209413A1R1    Special Matters – Amendment 1    SA-5
UAL-PA-03860-LA-1209414    Other Special Matters    UAL-PA-03860-LA-1209413A1   
Other Special Matters - Amendment 1    SA-1 UAL-PA-03860-LA-1209416R1   
Promotional Support    SA-2 UAL-PA-03860-LA-1209430    Performance Guarantees   
UAL-PA-03860-LA-1209455    *** – TERMINATED    SA-1 UAL-PA-03860-LA-1209429   
***    UAL-PA-03860-LA-1209618R1    Alternate Engine Selection    SA-1
6-1162-ELP-0794    *** Program- *** Aircraft    6-1162-ELP-0795    *** Program-
*** Aircraft    UAL-PA-03860-LA-1301368    Performance Guarantees (787-10)   
SA-1 UAL-PA-03860-LA-1301373    787-10 Aircraft Open Configuration and Other
Matters    SA-1 UAL-PA-03860-LA-1301375    Provisions Relating to Customer’s ***
for 787-10 Aircraft    SA-1 UAL-PA-03860-LA-1301377    787-10 ***    SA-1
UAL-PA-03860-LA-1301377A1    787-10 *** – Amendment 1    SA-4
UAL-PA-03860-LA-1301380    787-10 Program Launch    SA-1 UAL-PA-03860-LA-1500017
   Demonstration Flight Waiver    SA-4 UAL-PA-03860-LA-1500059    Installation
of Cabin Systems Equipment    SA-4

 

P.A. 3860

  TABLE OF CONTENTS, Page 3 of 5   SA-5 BOEING / UNITED AIRLINES, INC.
PROPRIETARY

--------------------------------------------------------------------------------

SUPPLEMENTAL AGREEMENTS

  

DATED AS OF

Supplemental Agreement No. 1

   June 17, 2013

Supplemental Agreement No. 2

   December 16, 2013

Supplemental Agreement No. 3

   July 22, 2014

Supplemental Agreement No. 4

   January 14, 2015

Supplemental Agreement No. 5

   April 30, 2015

 

P.A. 3860

  TABLE OF CONTENTS, Page 4 of 5   SA-5 BOEING/UNITED AIRLINES, INC. PROPRIETARY

--------------------------------------------------------------------------------

Table 1 to Purchase Agreement No. 3860

787-10 Aircraft with GENX-1B*** Engines Delivery, Description, Price and Advance
Payments

(787-10/GE/***)

 

Airframe Model/MTOW:

   787-10        *** pounds                           

Detail Specification:

    ***  

Engine Model/Thrust:

   GENX-1B***¹   

*** pounds

     

Airframe Price Base Year/Escalation Formula:

  ***     ***

Airframe Price:

      $***      

Engine Price Base Year/Escalation Formula:

  ***     ***

Optional Features:

      $***                  

 

           

Sub-Total of Airframe and Features:

$***

Airframe Escalation Data:

Engine Price (Per Aircraft) :

$***

Base Year Index (ECI):

***      

 

           

Aircraft Basic Price (Excluding BFE/SPE):

$***

Base Year Index (CPI):

***      

 

           

Buyer Furnished Equipment (BFE) Estimate:

$***

Engine Escalation Data:

In-Flight Entertainment (IFE) Estimate:

$***

Base Year Index (ECI):

***

Base Year Index (CPI):

***

Refundable Deposit/Aircraft at Proposal Accept:

$***

 

Delivery

Date

   Number of
Aircraft   Escalation
Factor
(Airframe)   Escalation
Factor
(Engine)        Serial
Number   Escalation Estimate
Adv Payment Base
Price Per A/P   Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):
                ***   ***   ***   ***                 ***   ***   ***   ***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *    ***   $***   $***   $***   $***   $***

 

   Boeing Proprietary    787-10 with GE Engines Table 1 to SA-5, Page 1

--------------------------------------------------------------------------------

Table 1 to Purchase Agreement No. 3860

787-10 Aircraft with GENX-1B*** Engines Delivery, Description, Price and Advance
Payments

(787-10/GE/***)

 

Delivery

Date

   Number of
Aircraft   Escalation
Factor
(Airframe)   Escalation
Factor
(Engine)       Serial
Number   Escalation Estimate
Adv Payment Base
Price Per A/P   Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):
               ***   ***   ***   ***                ***   ***   ***   ***

***

   ***   ***   ***   *   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   *   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

***

   ***   ***   ***   **   ***   $***   $***   $***   $***   $***

Total:

   25                  

 

¹ *** on a *** to delivery GEnx-1B*** thrust rating at the GEnx-1B***.

* *** Escalation Factors ***

** *** Escalation Factors ***

 

   Boeing Proprietary    787-10 with GE Engines Table 1 to SA-5, Page 2

--------------------------------------------------------------------------------

Attachment B-1 to Letter Agreement UAL-PA-03860-LA-120965R1

787-10 Option Aircraft with GENX-1B***

Engines Delivery, Description, Price and Advance Payments

(787-10/GE/***)

 

Airframe Model/MTOW:   787-10       *** pounds                                  
Detail Specification:   ***   Engine Model/Thrust:     GENX-1B***   *** pounds  
      Airframe Price Base Year/Escalation Formula:   ***   *** Airframe Price:  
$***         Engine Price Base Year/Escalation Formula:   ***   *** Optional
Features:   $***                      

 

                Sub-Total of Airframe and Features: $*** Airframe Escalation
Data: Engine Price (Per Aircraft): $*** Base Year Index (ECI): ***      

 

                Aircraft Basic Price (Excluding BFE/SPE): $*** Base Year Index
(CPI): ***      

 

                Buyer Furnished Equipment (BFE) Estimate: $*** Engine Escalation
Data: In-Flight Entertainment (IFE) Estimate: $*** Base Year Index (ECI): ***
Base Year Index (CPI): ***

*** Deposit/Aircraft at Def Agreement

$***

Delivery

Date

  Number of
Aircraft   Escalation
Factor
(Airframe)   Escalation
Factor
(Engine)   Manufacturer
Serial Number   Escalation Estimate
Adv Payment
Base
Price Per A/P   Advance Payment Per Aircraft (Amts. Due/Mos.
Prior to Delivery):             ***   ***   ***   ***             ***   ***  
***   **

***

  ***   ***   ***   TBD   $***   $***   $***   $***   $***

***

  ***   ***   ***   TBD   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

 

APR 64695-1F.TXT   Boeing Proprietary  
787-10 with GE Engines Table 1 to SA-5, Page 1

--------------------------------------------------------------------------------

Attachment B-1 to Letter Agreement UAL-PA-03860-LA-120965R1

787-10 Option Aircraft with GENX-1B***

Engines Delivery, Description, Price and Advance Payments

(787-10/GE/***)

 

Delivery

Date

  Number of
Aircraft   Escalation
Factor
(Airframe)   Escalation
Factor
(Engine)   Manufacturer
Serial Number   Escalation Estimat
Adv Payment
Base
Price Per A/P   Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):
            ***   ***   ***   ***             ***   ***   ***   **

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

***

  ***   ***   ***   ***   $***   $***   $***   $***   $***

Total:

  ***                

 

APR 64695-1F.TXT   Boeing Proprietary  
787-10 with GE Engines Table 1 to SA-5, Page 2

--------------------------------------------------------------------------------

LOGO [g941677g40s76.jpg]

The Boeing Company    

P.O. Box 3707                

Seattle, WA 98124-2207

 

 

UAL-PA-03860-LA-1209413A1R1

United Airlines, Inc.

233 South Wacker Drive

Chicago, Illinois 60606

 

Subject:

Special Matters — Amendment 1

Reference:

Purchase Agreement No. 3860 (Purchase Agreement) between The Boeing Company
(Boeing) and United Airlines, Inc. relating to Model 787 aircraft (Aircraft)

This letter agreement UAL-PA-03860-LA-1209413A1R1 (Amending Letter Agreement)
amends and supplements the Purchase Agreement, amends certain terms in Letter
Agreement UAL-PA-03860-LA-1209413 (the Letter Agreement), and supersedes and
replaces in its entirety letter agreement UAL-PA-03860-LA-1209413A1. All terms
used and not defined in this Letter Agreement have the same meaning as in the
Purchase Agreement.

 

1. Amendments to Article 4 of the Letter Agreement.

Article 4.4 of the Letter Agreement is hereby deleted and replaced with the
following:

 

  4.4. Special *** Provisions for the Launch Aircraft. With respect to (i) the
*** 787-10 Aircraft listed in Table 1 to the Purchase Agreement as of the
effective date of Supplemental Agreement No. 5 to the Purchase Agreement and
(ii) the *** 787-*** Aircraft with scheduled delivery dates of *** and ***;
(each a Launch Aircraft), the parties agree that *** of the Article 4.1 ***
obligation will be *** delivery of each Launch Aircraft (Launch Aircraft ***
Obligation). At time of delivery of each Launch Aircraft, Boeing will *** to ***
the Launch Aircraft *** Obligation.

 

2. Confidential Treatment.

Boeing and Customer understand that certain information contained in this Letter
Agreement, including any attachments hereto, is considered by both parties to be
confidential. Boeing and Customer agree that each party will treat this Letter
Agreement and the information contained herein as confidential and will not,
without the other party’s prior written consent, disclose this Letter Agreement
or any information contained herein to any other person or entity except as may
be required by applicable law or governmental regulations.

 

UAL-PA-03860-LA-1209413A1R1

Special Matters

Page 1

SA-5

BOEING / UNITED AIRLINES, INC. PROPRIETARY

 

--------------------------------------------------------------------------------

LOGO [g941677g07v68.jpg]

Very truly yours,

 

THE BOEING COMPANY By

/s/ Patrick McKelvey

Its Attorney-In-Fact ACCEPTED AND AGREED TO this Date: April 30, 2015 UNITED
AIRLINES, INC. By

/s/ Gerald Laderman

Its Senior Vice President – Finance, Procurement and Treasurer

 

UAL-PA-03860-LA-1209413A1R1

Special Matters

Page 2

SA-5

BOEING / UNITED AIRLINES, INC. PROPRIETARY