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United Airlines is a major U.S. airline headquartered in ChicagoIllinois. It is a wholly owned subsidiary of United Continental Holdings (formerly UAL Corporation) and the world's largest airline in terms of scheduled passenger-kilometers flown. The airline was founded in 1926 as Varney Air Lines; it was renamed Boeing Air Transport in 1927 after it was acquired by aircraft manufacturerBoeing. United became an independent company in 1934, merging with Capital Airlines in 1961, and again with Continental Airlines in 2011.[3]

Aircraft Previously flown


L1011 Tristar




Aircraft currently flown