Flights for UA1856 These are not all the flights that UA1856 has taken, just some of them that have flown in or out of SFO

UAL1856 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on April 13, 2014. Passengers were flying aboard a Boeing 737-800. See all the flights for UA1856.
UAL1856 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on September 22, 2013. Passengers were flying aboard a Boeing 757-300. See all the flights for UA1856.

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".