Flights for UA257 These are not all the flights that UA257 has taken, just some of them that have flown in or out of SFO

UA257 (IND-SFO)
This United Airlines flight traveled from Indianapolis International Airport to San Francisco International Airport, on March 29, 2020. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 28, 2020. It arrived at gate F16. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 27, 2020. It arrived at gate F22. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 26, 2020. It arrived at gate F22. See all the flights for UA257.
UA257 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on March 25, 2020. It departed from gate G1. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 25, 2020. It arrived at gate F19. See all the flights for UA257.
UA257 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on March 24, 2020. It departed from gate F16. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 24, 2020. It arrived at gate F22. See all the flights for UA257.
UA257 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on March 23, 2020. It departed from gate F12. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 23, 2020. It arrived at gate F11. See all the flights for UA257.
UA257 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on March 22, 2020. It departed from gate E6. See all the flights for UA257.
UA257 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on March 22, 2020. It arrived at gate F11. See all the flights for UA257.

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".