Flights for UA1238 These are not all the flights that UA1238 has taken, just some of them that have flown in or out of SFO

UAL1238 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on May 20, 2013. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on May 15, 2013. Passengers were flying aboard a Boeing 737-700. See all the flights for UA1238.
UAL1238 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on May 14, 2013. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on May 06, 2013. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-SEA)
This United Airlines flight traveled from San Francisco International Airport to Tacoma International Airport, on September 21, 2013. Passengers were flying aboard a Boeing 737-700. See all the flights for UA1238.
UAL1238 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on March 09, 2014. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-SNA)
This United Airlines flight traveled from San Francisco International Airport to John Wayne Airport, on March 30, 2014. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-STL)
This United Airlines flight traveled from San Francisco International Airport to Lambert-St. Louis International Airport, on May 24, 2013. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-STL)
This United Airlines flight traveled from San Francisco International Airport to Lambert-St. Louis International Airport, on May 23, 2013. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.
UAL1238 (SFO-YVR)
This United Airlines flight traveled from San Francisco International Airport to Vancouver International Airport, on April 01, 2014. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1238.
UAL1238 (SFO-YVR)
This United Airlines flight traveled from San Francisco International Airport to Vancouver International Airport, on March 31, 2014. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1238.

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".