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On January 1, 1937, United Air Lines started the first Douglas DC-3 service to San Francisco Airport. The efficiency of advanced airliners began to make passenger service profitable. United Air Lines used the 21-seat Douglas DC-3 for eight flights daily from San Francisco to Los Angeles, and coast-to-coast service to New York in just fifteen hours. Image: San Francisco Airport, United Air Lines, Mainliner airplane, 1938. SFO Museum Collection. 1997.52.050.002 a This image was posted on January 03, 2019.

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This post mentions the following things involved with the SFO Museum collection:

United Airlines. It is related to United Airlines (the company) .