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Questions about United (UA), a major international airline of the United States, and the largest Star Alliance member.

United Airlines is one of the "Big Three" international based in the , and one of the largest and oldest airlines in the world.

  • Hub airports: (Chicago O'Hare), (Denver), (Houston Bush Intercontinental), (Newark Liberty), (Los Angeles), (San Francisco), (Washington Dulles)
  • Other key airports: (Won Pat Guam) is the base for United's Air Micronesia operation, and (Tokyo Narita) is a focus city for service to Asia
  • Alliance:
  • IATA code: UA
  • Loyalty program: Mileage Plus
  • Lounge/club: United Club
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