United Airlines Holdings
United Airlines Holdings, Inc. (UAL) is a major American airline holding company headquartered in Chicago, Illinois. It is the parent company of United Airlines, one of the world's largest airlines, which operates an extensive network of domestic and international flights. United Airlines offers passenger air transportation, cargo services, and related services. The company primarily operates in the aviation sector, providing scheduled air transport services across multiple continents, including North America, South America, Europe, Asia, and Australia.