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As its name implies, United Airlines originated from a merger of several early air transport companies that began operating more than 75 years ago. The main companies were Boeing Air Transport, National Air Transport, Pacific Air Transport, and Varney Air Lines. Boeing and National were strictly mail carriers until 1927 when they joined to start planning coast-to-coast passenger service. By 1931, all four carriers were operating as subsidiaries of the newly incorporated United Air Lines. United Air Lines, San Francisco ticket office c. 1940 SFO Museum Collection Gift of United Airlines Archives 1999.047.237
This image was posted on January 04, 2017.