Flights for UA1531 These are not all the flights that UA1531 has taken, just some of them that have flown in or out of SFO

UAL1531 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on June 14, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1531.
UAL1531 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on June 07, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1531.
UAL1531 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on June 21, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1531.
UAL1531 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on June 28, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1531.
UAL1531 (STL-SFO)
This United Airlines flight traveled from Lambert-St. Louis International Airport to San Francisco International Airport, on April 21, 2013. Passengers were flying aboard a Boeing 737-700. See all the flights for UA1531.
UAL1531 (STL-SFO)
This United Airlines flight traveled from Lambert-St. Louis International Airport to San Francisco International Airport, on April 14, 2013. Passengers were flying aboard a Boeing 737-700. See all the flights for UA1531.

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".