Flights for UA921 These are not all the flights that UA921 has taken, just some of them that have flown in or out of SFO

UAL921 (SNA-SFO)
This United Airlines flight traveled from John Wayne Airport to San Francisco International Airport, on July 18, 2012. Passengers were flying aboard an Airbus A320-200. See all the flights for UA921.
UAL921 (SNA-SFO)
This United Airlines flight traveled from John Wayne Airport to San Francisco International Airport, on August 03, 2012. Passengers were flying aboard an Airbus A320-200. See all the flights for UA921.
UAL921 (SNA-SFO)
This United Airlines flight traveled from John Wayne Airport to San Francisco International Airport, on August 02, 2012. Passengers were flying aboard an Airbus A320-200. See all the flights for UA921.

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".