EX-10.15



 Exhibit 10.15 
 AMENDED AND RESTATED LETTER AGREEMENT NO. 10 
 TO THE AIRBUS A350-900XWB PURCHASE
AGREEMENT 
 dated as of March 5, 2010 
 between 
 AIRBUS S.A.S. 

and 
 UNITED
AIRLINES, INC. 
 This amended and restated Letter Agreement No. 10 (hereinafter referred to as the “Letter
Agreement”) is entered into as of June 19, 2013 by and between AIRBUS S.A.S., a société par actions simplifiée, organized and existing under the laws of the Republic of France, having its registered office located
at 2, Rond Point Maurice Bellonte, 31700 Blagnac (France) (hereinafter referred to as the “Seller”), and UNITED AIRLINES, INC., a corporation organized and existing under the laws of the State of Delaware, United States of America,
having its principal corporate offices located at 233 South Wacker Drive, Chicago, Illinois 60606 (hereinafter referred to as the “Buyer”). 
 WITNESSETH: 
 WHEREAS, the Buyer and the Seller have entered into the AIRBUS A350-900XWB
Purchase Agreement, dated as of March 5, 2010 (which agreement as previously amended and supplemented with all Exhibits, Appendices and Letter Agreements attached thereto is hereinafter called the “Agreement”), and 

 WHEREAS, the Buyer and the Seller have entered into Letter Agreement No. 10 to the Agreement, setting forth certain terms and
conditions regarding the sale of the Aircraft (the “Original Letter Agreement”). 
 WHEREAS, the Buyer and the Seller
wish to amend and restate the Original Letter Agreement to incorporate relevant amendments to such Original Letter Agreement into a single document. 
 NOW THEREFORE IT IS AGREED THAT THE ORIGINAL LETTER AGREEMENT IS HEREBY AMENDED AND RESTATED TO READ IN ITS ENTIRETY AS FOLLOWS: 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.10	  	 	LA10-1	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 
 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. 









	1.	*** 

  

	2.	ASSIGNMENT 

 This Letter
Agreement and the rights and obligations of the parties will be subject to the provisions of Clause 21 of the Agreement. 
  

	3.	CONFIDENTIALITY 

 This
Letter Agreement is subject to the terms and conditions of Clause 22.10 of the Agreement. 
  

	4	COUNTERPARTS 

 This Letter
Agreement may be executed by the parties hereto in separate counterparts, each of which when so executed and delivered shall be an original, but all such counterparts shall together constitute one and the same instrument. 

  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.10	  	 	LA10-2	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL 








 If the foregoing correctly sets forth our understanding, please execute the original and one (1) copy
hereof in the space provided below and return a copy to the Seller. 
  

			
	Very truly yours,
	
	AIRBUS S.A.S.
		
	By:	 	/s/ John J. Leahy
	Its:	 	Chief Operating Officer
		 	Customers


  

			
	Accepted and Agreed
	
	UNITED AIRLINES, INC.
		
	By:	 	/s/ Gerald Laderman
	Its:	 	Senior Vice President & Treasurer


  

							
	CT0900252 – United Airlines, Inc. – A350-900XWB Purchase Agreement – Letter Amendment No.10	  	 	LA10-3	  

 AIRBUS S.A.S. &
UNITED AIRLINES, INC. – PROPRIETARY AND CONFIDENTIAL