Flights for UA3891 These are not all the flights that UA3891 has taken, just some of them that have flown in or out of SFO

UA3891 (SFO-PVG)
This United Airlines flight traveled from San Francisco International Airport to Pudong International Airport, on February 15, 2024. It departed from gate G1. Passengers were flying aboard a Boeing 787-9 with tail number N19951. See all the flights for UA3891.
UA3891 (LAS-SFO)
This United Airlines flight traveled from McCarran International Airport to San Francisco International Airport, on January 14, 2024. It arrived at gate E7. See all the flights for UA3891.
UA3891 (SFO-LAS)
This United Airlines flight traveled from San Francisco International Airport to McCarran International Airport, on November 26, 2023. It departed from gate F15. Passengers were flying aboard a Boeing 777-200 with tail number N74007. See all the flights for UA3891.
UA3891 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on June 28, 2023. See all the flights for UA3891.

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".