Flights for the airplane with tail number N421UA These are not all the flights for this airplane, just the ones that have flown in and out of SFO since we've been counting. See all the airports this plane has visited for those flights or all the airplanes we've logged so far.

UA460 (SFO-YVR)
This United Airlines flight between San Francisco International Airport and Vancouver International Airport, on March 24, 2024, was operated by another airline. It departed from gate G3. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA460.
UA1212 (SFO-PVR)
This United Airlines flight between San Francisco International Airport and Lic Gustavo Diaz Ordaz International Airport, on February 16, 2024, was operated by another airline. It departed from gate F4. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA1212.
UA483 (BNA-SFO)
This United Airlines flight between Nashville International Airport and San Francisco International Airport, on February 15, 2024, was operated by another airline. It arrived at gate F4. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA483.
UA1403 (SFO-BNA)
This United Airlines flight between San Francisco International Airport and Nashville International Airport, on February 15, 2024, was operated by another airline. It departed from gate E7. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA1403.
UA2669 (BNA-SFO)
This United Airlines flight between Nashville International Airport and San Francisco International Airport, on February 15, 2024, was operated by another airline. It arrived at gate E7. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA2669.
UA611 (SFO-EUG)
This United Airlines flight between San Francisco International Airport and Eugene Airport-Mahlon Sweet Field, on February 11, 2024, was operated by another airline. It departed from gate D10. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA611.
UA2683 (RNO-SFO)
This United Airlines flight between Reno-Tahoe International Airport and San Francisco International Airport, on February 11, 2024, was operated by another airline. It arrived at gate D10. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA2683.
UA2313 (SFO-RNO)
This United Airlines flight between San Francisco International Airport and Reno-Tahoe International Airport, on February 10, 2024, was operated by another airline. It departed from gate F1. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA2313.
UA2478 (PIT-SFO)
This United Airlines flight between Greater Pittsburgh International Airport and San Francisco International Airport, on February 10, 2024, was operated by another airline. It arrived at gate F1. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA2478.
UA1763 (SFO-PIT)
This United Airlines flight between San Francisco International Airport and Greater Pittsburgh International Airport, on February 10, 2024, was operated by another airline. It departed from gate F14. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA1763.
UA336 (SNA-SFO)
This United Airlines flight between John Wayne Airport and San Francisco International Airport, on February 10, 2024, was operated by another airline. It arrived at gate F14. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA336.
UA1632 (SFO-SNA)
This United Airlines flight between San Francisco International Airport and John Wayne Airport, on February 09, 2024, was operated by another airline. It departed from gate G12. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA1632.