United Airlines, Inc. is a major American airline with headquarters at Willis Tower in Chicago, Illinois. It is the 3rd largest airline in the world, measured by fleet size and route network. United operates a large domestic and international route network, with an extensive presence in the Asia-Pacific region. It is a founding member of the Star Alliance, the world's largest airline alliance with a total of 28 member airlines. Regional service is operated by independent carriers under the brand name United Express.
Code (IATA): UA
Code (ICAO): UAL
Country: United States
Fleet size: 715
Website/Covid-19 Info: www.united.com