About United Airlines
United Airlines is a Star Alliance founding member with Polaris business class on long-haul, an extensive global network from Chicago, Newark, and San Francisco, and MileagePlus as a core loyalty programme for UK–US routings.
Key strengths: Polaris lounges and lie-flat business. Extensive Star Alliance network. Strong SFO and ORD hubs. Areas for improvement: Basic Economy restrictions. Polaris product varies by aircraft age.