Flights for UA91 These are not all the flights that UA91 has taken, just some of them that have flown in or out of SFO

UAL91 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on October 05, 2006. Passengers were flying aboard a Boeing 757-200. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on July 19, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on August 02, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on July 25, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on July 26, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on August 15, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on August 08, 2010. Passengers were flying aboard an Airbus A320-200. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on August 13, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on September 02, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on August 22, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on September 28, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.
UAL91 (EWR-SFO)
This United Airlines flight traveled from Newark International Airport to San Francisco International Airport, on September 14, 2010. Passengers were flying aboard an Airbus A319. See all the flights for UA91.

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".