United and Air China Enhance Service

PRNewswire-FirstCall CHICAGO Oct. 31 :

United Airlines (BULLETIN BOARD: UALAQ) and Air China today announced the
implementation of their recently announced marketing alliance with the
introduction of new codeshare flights to and from China.

Members of United Airlines` Mileage Plus frequent flyer program and Air
China`s Companion frequent flyer program will now be able to earn
qualifying frequent flyer miles/kilometers on all United flights and both
carriers` code- share flights, and redeem awards on all United and Air
China flights. Customers will also receive one boarding pass upon check-in
for each segment of their flight. Codeshare flights are available for sale
today for flights on or after October 31, 2003.

Air China customers now have expanded access to all flight segments
operated by United, including its Beijing - Chicago O`Hare - Washington
Dulles route and its Shanghai - San Francisco - Chicago O`Hare route. In
addition, the United Airlines code will now be added to all Air China
flights from Beijing to Los Angeles, New York JFK and San Francisco.
Additional codeshare flights will be announced over the coming months.

Customers traveling on itineraries utilizing both United and Air China
should check their travel documents to determine the operating carrier and
terminal for their flight when traveling. They will be provided boarding
passes upon check-in for each part of their journey when checking in with
either airline. For questions on policies and procedures, customers should
check with the operating carrier.

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About United Airlines
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United entered China`s market in 1986 and is one of the major U.S.
carriers serving China, with 21 weekly flights to Beijing and Shanghai.
United and United Express operate more than 3,300 flights a day on a route
network that spans the globe. News releases and other information about
United can be found at the company`s web site at http://www.united.com/ .

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