Kevork Djansezian—Getty Images
October 16, 2015 8:38 AM EDT

The last ever US Airways flight will depart San Francisco at 9:55 p.m, Pacific Time, and land in Philadelphia shortly after 6 o’clock Saturday morning, according to a report in USA Today.

It has been labeled Flight 1939 to commemorate the year in which the small, Pennsylvania-based airmail company, All American Aviation, began operations. That company would eventually grow and merge its way on to the national stage, changing its name to US Airways in 1997.

The airline merged with American Airlines in 2012, and after Friday, “American will unify its own reservations systems for the flights of both airlines,” according to the report. It will take until late 2016, however, before all the US Airways planes are repainted in American Airlines colors.

The world’s biggest airline will faces a big merger-integration test this weekend when American plans to shift its US Airways unit onto its own reservation system, The Wall Street Journal reports:

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