Flights for UA639 These are not all the flights that UA639 has taken, just some of them that have flown in or out of SFO

UAL639 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on July 22, 2012. Passengers were flying aboard an Airbus A319. See all the flights for UA639.
UAL639 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on July 29, 2012. Passengers were flying aboard an Airbus A319. See all the flights for UA639.
UAL639 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on July 01, 2012. Passengers were flying aboard an Airbus A319. See all the flights for UA639.

All these flight data are available as openly licensed data on the sfomuseum-data GitHub account. If you'd like to read more about our efforts to archive flight data at SFO Museum have a look a the Mills Field weblog posts tagged "flightdata".