Exhibit 10.5

Supplemental Agreement No. 17

to

Purchase Agreement No. 2061

between

The Boeing Company

and

Continental Airlines, Inc.

Relating to Boeing Model 777 Aircraft

THIS SUPPLEMENTAL AGREEMENT, is entered into as of August 31, 2009 by and between THE BOEING COMPANY (Boeing) and CONTINENTAL AIRLINES, INC. (Customer);

WHEREAS, the parties hereto entered into Purchase Agreement No. 2061 dated October 10, 1997 (the Purchase Agreement) relating to Boeing Model 777-200ER Aircraft (the Aircraft); and

WHEREAS, the parties agree to [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]

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

1.            Revised Table of Contents

Remove and replace, in its entirety, the “ Table of Contents ”, with the “ Table of Contents ” attached hereto, to reflect the changes made by this Supplemental Agreement No. 17.

2.            Revised Table 4

Remove and replace, in its entirety, Table 4 “Aircraft Delivery, Description, Price and Advance Payments” with a revised Table 4 attached hereto to reflect removal of the [CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE COMMISSION PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT]

PA 2061                                                      SA17-1

CAL

Supplemental Agreement No.