Questions about United (UA), a major international airline of the United States, and the largest Star Alliance member.
- Hub airports: ord (Chicago O'Hare), den (Denver), iah (Houston Bush Intercontinental), ewr (Newark Liberty), lax (Los Angeles), sfo (San Francisco), iad (Washington Dulles)
- Other key airports: gum (Won Pat Guam) is the base for United's Air Micronesia operation, and nrt (Tokyo Narita) is a focus city for service to Asia
- Alliance: star-alliance
- IATA code:
- Loyalty program: Mileage Plus
- Lounge/club: United Club