Flights for UA1233 These are not all the flights that UA1233 has taken, just some of them that have flown in or out of SFO

UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on January 09, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1233.
UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on January 15, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on January 22, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on February 09, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on February 04, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-PHL)
This United Airlines flight traveled from San Francisco International Airport to Philadelphia International Airport, on February 05, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on October 13, 2012. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1233.
UAL1233 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on October 06, 2012. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1233.
UAL1233 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on March 12, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.
UAL1233 (SFO-SEA)
This United Airlines flight traveled from San Francisco International Airport to Tacoma International Airport, on March 20, 2015. Passengers were flying aboard a Boeing 737-700. See all the flights for UA1233.
UAL1233 (SFO-SEA)
This United Airlines flight traveled from San Francisco International Airport to Tacoma International Airport, on March 06, 2015. Passengers were flying aboard a Boeing 737-900. See all the flights for UA1233.

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".