Flights for UA12 These are not all the flights that UA12 has taken, just some of them that have flown in or out of SFO

UAL12 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on July 01, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on June 10, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on June 13, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-ORD)
This United Airlines flight traveled from San Francisco International Airport to Chicago O'Hare International Airport, on February 17, 2007. Passengers were flying aboard an Airbus A319. See all the flights for UA12.
UAL12 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on June 11, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on June 25, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on June 18, 2013. Passengers were flying aboard a Boeing 737-900. See all the flights for UA12.
UAL12 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on March 22, 2014. Passengers were flying aboard a Boeing 737-800. See all the flights for UA12.
UAL12 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on November 16, 2012. Passengers were flying aboard a Boeing 737-700. See all the flights for UA12.
UAL12 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on January 03, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA12.
UAL12 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on January 20, 2015. Passengers were flying aboard a Boeing 737-800. See all the flights for UA12.
UAL12 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on November 09, 2012. Passengers were flying aboard a Boeing 737-800. See all the flights for UA12.

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".