Airline
United Airlines UA
United States · Star Alliance · founded 1926
Codes
- IATA designator
- UA
- ICAO designator
- UAL
- Home country
- United States
- Alliance
- Star Alliance
The two-character IATA designator UA is what appears in a flight number — UA 123 — and on your itinerary. The three-letter ICAO code UAL is used by air traffic control and in flight plans. A third, numeric code forms the first three digits of every e-ticket issued on this airline's stock.
Hubs
Where the airline concentrates its operations. The first is its primary base.
Chicago
ORDChicago O'Hare International Airport
Primary hub · United States
Newark
EWRNewark Liberty International Airport
Secondary hub · United States
San Francisco
SFOSan Francisco International Airport
Secondary hub · United States
Houston
IAHGeorge Bush Intercontinental Airport
Secondary hub · United States
Denver
DENDenver International Airport
Secondary hub · United States
The airline you book may not be the one you fly
A flight number beginning UA means United Airlines sold the ticket. On a codeshare, the aircraft and crew may belong to a different airline entirely — look for "operated by" on the itinerary. You check in with the operating carrier, in their terminal, usually under their baggage rules.
Star Alliance membership
Alliance membership affects lounge access, mileage earning and whether baggage is checked through. It does not by itself mean two airlines will look after you when a connection fails — that depends on whether the journey is on one ticket.
Other Star Alliance members
Carriers in this directory sharing the alliance. Not a complete membership list.
Check with the airline
Baggage allowances, fare rules, schedules and check-in requirements come from the airline and change. Nothing on this page is a schedule or a booking.
How this data is maintained
Airline codes, hubs and alliance membership here are curated by hand rather than taken from a dataset, because no public-domain source covers them with the licence this site needs. They are corrected on report.