Flights for the airplane with tail number N12221 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.

UA1711 (SFO-CLE)
This United Airlines flight between San Francisco International Airport and Hopkins International Airport, on March 24, 2024, was operated by another airline. It departed from gate F14. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1711.
UA2247 (SAN-SFO)
This United Airlines flight between San Diego International Airport and San Francisco International Airport, on March 24, 2024, was operated by another airline. It arrived at gate D11. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2247.
UA1896 (SEA-SFO)
This United Airlines flight between Tacoma International Airport and San Francisco International Airport, on March 24, 2024, was operated by another airline. It arrived at gate E4. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1896.
UA1986 (SFO-SEA)
This United Airlines flight between San Francisco International Airport and Tacoma International Airport, on March 24, 2024, was operated by another airline. It departed from gate D11. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1986.
UA573 (DEN-SFO)
This United Airlines flight between Denver International Airport and San Francisco International Airport, on March 24, 2024, was operated by another airline. It arrived at gate D11. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA573.
UA1204 (SFO-PIT)
This United Airlines flight between San Francisco International Airport and Greater Pittsburgh International Airport, on March 14, 2024, was operated by another airline. It departed from gate F21. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1204.
UA436 (PHX-SFO)
This United Airlines flight between Sky Harbor International Airport and San Francisco International Airport, on March 14, 2024, was operated by another airline. It arrived at gate F21. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA436.
UA1041 (SFO-SAN)
This United Airlines flight between San Francisco International Airport and San Diego International Airport, on March 11, 2024, was operated by another airline. It departed from gate D11. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1041.
UA1678 (MFR-SFO)
This United Airlines flight between Rogue Valley International-Medford Airport and San Francisco International Airport, on March 11, 2024, was operated by another airline. It arrived at gate D11. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1678.
UA2228 (SFO-MFR)
This United Airlines flight between San Francisco International Airport and Rogue Valley International-Medford Airport, on March 10, 2024, was operated by another airline. It departed from gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2228.
UA2117 (SAN-SFO)
This United Airlines flight between San Diego International Airport and San Francisco International Airport, on March 10, 2024, was operated by another airline. It arrived at gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2117.
UA2041 (SFO-SAN)
This United Airlines flight between San Francisco International Airport and San Diego International Airport, on March 10, 2024, was operated by another airline. It departed from gate E4. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2041.