1 (800) 273 3602 United Airlines Reservations Number

United Continental Holdings, Inc., commonly United Continental Holdings, Inc., commonly referred to as United, is a major American airline headquartered in Chicago, Illinois., is a major American airline headquartered in Chicago, Illinois.United Airlines traces its roots to the Varney Air Lines air mail service of Walter Varney, who also founded Varney Speed Lines from which Continental Airlines had originated. Founded in Boise, Idaho in 1926, the carrier flew the first contract air mail flight in the U.S. on April 6, 1926, marking the first scheduled airline service in the country’s history with flights between Pasco, WA and Elko, NV via Boise.