Exhibit 21

United Continental Holdings, Inc. and United Airlines, Inc. Subsidiaries

(as of February 20, 2014)

Entity	Jurisdiction of Incorporation
United Continental Holdings, Inc.	Delaware
Wholly-owned subsidiaries*:
Air Wis Services, Inc.	Wisconsin
•    Air Wisconsin, Inc.	Wisconsin
•    Domicile Management Services, Inc.**	Delaware
United Airlines, Inc.	Delaware
•    Air Micronesia, Inc.	Delaware
•    Continental Micronesia, Inc.	Delaware
•    CAL Cargo, S.A. de C.V.**	Mexico
•    CALFINCO Inc.	Delaware
•    Century Casualty Company	Vermont
•    Continental Airlines de Mexico, S.A.**	Mexico
•    Continental Airlines Domain Name Limited	England
•    Continental Airlines Finance Trust II	Delaware
•    Continental Airlines Fuel Purchasing Group, LLC	Delaware
•    Continental Airlines, Inc. Supplemental Retirement Plan for Pilots Trust Agreement	Delaware
•    Continental Airlines Purchasing Holdings LLC	Delaware
•    Continental Airlines Purchasing Services LLC**	Delaware
•    Continental Express, Inc.	Delaware
•    Covia LLC**	Delaware
•    Mileage Plus Holdings, LLC	Delaware
•    MPH I, Inc.	Delaware
•    Mileage Plus Marketing, Inc.	Delaware
•    Mileage Plus, Inc.	Delaware
•    Presidents Club of Guam, Inc.	Delaware
•    United Aviation Fuels Corporation	Delaware
•    United Cogen, Inc.	Delaware
•    United Vacations, Inc.	Delaware
UAL Benefits Management, Inc.	Delaware

* Subsidiaries of United Continental Holdings, Inc. are wholly-owned unless otherwise indicated

** Domicile Management Services Inc. is 99.9% owned by Air Wis Services, Inc. and 0.1% owned by United Airlines, Inc. CAL Cargo, S.A. de C.V. is 99.99% owned by United Airlines, Inc. and .01% owned by CALFINCO Inc. Continental Airlines de Mexico, S.A. is 99.96% owned by United Airlines, Inc. and .04% owned by private entities. Continental Airlines Purchasing Services LLC is 99% owned by Continental Airlines Purchasing Holdings LLC and 1% owned by United Airlines, Inc. Covia LLC currently owns an approximately 56% equity interest in the Galileo Japan Partnership, a Delaware general partnership.