EX-21 12 ual_12312410kex21.htm EX-21

Exhibit 21

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

(as of February 27, 2025)

Entity

Jurisdiction of Incorporation

United Airlines Holdings, Inc.

Delaware

Wholly-owned subsidiaries*:

United Airlines, Inc.

Delaware

● Air Wis Services, Inc.

Wisconsin

● Air Wisconsin, Inc.

Wisconsin

● Domicile Management Services, Inc. **

Delaware

● CAL Cargo, S.A. de C.V.**

Mexico

● CALFINCO Inc.

Delaware

● CALFINCO Caymans Ltd.

Cayman Islands

● Century Casualty Company

Vermont

● Continental Airlines de Mexico, S.A.**

Mexico

● Continental Airlines, Inc. Supplemental Retirement Plan for Pilots Trust Agreement

Delaware

● Covia LLC

Delaware

● Mileage Plus Holdings, LLC

Delaware

● MPH I, LLC

Delaware

● Mileage Plus Marketing, Inc.

Delaware

● Mileage Plus, LLC

Delaware

● Mileage Plus Intellectual Property Assets, Ltd. ***

Cayman Islands

● Mileage Plus Intellectual Property Assets Aggregator, Ltd.******

Cayman Islands

● Mileage Plus Intellectual Property Assets Holdings UIP, Ltd.

Cayman Islands

● Mileage Plus Intellectual Property Assets Holdings MIP, Ltd.

Cayman Islands

● Mileage Plus Intellectual Property Assets SPV Partner, Ltd.****

Cayman Islands

● Mileage Plus Intellectual Property Assets GP S.à r.l.*****

Luxembourg

● Mileage Plus Intellectual Property Assets Lux 1 SCS*****

Luxembourg

● Mileage Plus Intellectual Property Assets Lux 2 SCS*****

Luxembourg

● Presidents Club of Guam, Inc.

Delaware

● UABSPL Holdings, Inc.

Delaware

● UAL Benefits Management, Inc.**

Delaware

● United Aviation Fuels Corporation

Delaware

● United Airlines Ventures, Ltd.

Cayman Islands

● United Airlines Ventures Management LLC

Delaware

● United Airlines Business Services Private Limited**

India

● United Ground Express, Inc.

Delaware

● United Travel Services, LLC

Delaware

● United Vacations, Inc.

Delaware

● Westwind School of Aeronautics, Phoenix, LLC

Delaware

        

*Subsidiaries of United Airlines 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 99.9997% owned by United Airlines, Inc. and .0003% owned by private entities. UAL Benefits Management, Inc. has 100% of its Class A Common Stock owned by United Airlines, Inc. and 100% of its Class B Common Stock owned by Health Care Services Corporation. United Airlines Business Services

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Private Limited is 99.99% owned by United Airlines, Inc. and 0.01% owned by UABSPL Holdings, Inc. on behalf of United Airlines, Inc.

*** 1 special share in Mileage Plus Intellectual Property Assets, Ltd. is held by a third party share trustee

**** Mileage Plus Intellectual Property Assets SPV Partner, Ltd. is a wholly owned subsidiary of Mileage Plus Intellectual Property Assets, Ltd.

***** Mileage Plus Intellectual Property Assets Lux 1 SCS is 4.76% owned by Mileage Plus Intellectual Property Assets GP S.à r.l. and 95.23% owned by Mileage Plus Intellectual Property Assets Lux 2 SCS, which itself is 4.76% owned by Mileage Plus Intellectual Property Assets GP S.à r.l. and 95.23% owned by Mileage Plus Intellectual Property Assets, Ltd.

****** Mileage Plus Intellectual Property Assets Aggregator, Ltd. is 60% owned by Mileage Plus Intellectual Property Assets Holdings MIP, Ltd. and 40% owned by Mileage Plus Intellectual Property Assets Holdings UIP, Ltd.