Flights for UA856 These are not all the flights that UA856 has taken, just some of them that have flown in or out of SFO

UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on August 28, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on August 20, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on August 30, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on August 29, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on September 06, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on September 27, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on October 03, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on October 12, 2008. Passengers were flying aboard a Boeing 747-400. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on July 05, 2007. Passengers were flying aboard a Boeing 777-200. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on June 30, 2007. Passengers were flying aboard a Boeing 777-200. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on July 02, 2007. Passengers were flying aboard a Boeing 777-200. See all the flights for UA856.
UAL856 (HKG-SFO)
This United Airlines flight traveled from Hong Kong International Airport to San Francisco International Airport, on July 12, 2007. Passengers were flying aboard a Boeing 777-200. See all the flights for UA856.

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".