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.

UA922 (FLL-SFO)
This United Airlines flight traveled from Fort Lauderdale Hollywood International Airport to San Francisco International Airport, on February 24, 2020. It arrived at gate E13. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA922.
UA2244 (SFO-FLL)
This United Airlines flight traveled from San Francisco International Airport to Fort Lauderdale Hollywood International Airport, on February 23, 2020. It departed from gate F20. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2244.
UA499 (ORD-SFO)
This United Airlines flight traveled from Chicago O'Hare International Airport to San Francisco International Airport, on February 23, 2020. It arrived at gate F20. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA499.
UA784 (SFO-YVR)
This United Airlines flight traveled from San Francisco International Airport to Vancouver International Airport, on February 18, 2020. It departed from gate E8. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA784.
UA1893 (IAD-SFO)
This United Airlines flight traveled from Dulles International Airport to San Francisco International Airport, on February 17, 2020. It arrived at gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1893.
UA516 (SFO-IAD)
This United Airlines flight traveled from San Francisco International Airport to Dulles International Airport, on February 17, 2020. It departed from gate F17. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA516.
UA392 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on February 17, 2020. It arrived at gate F17. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA392.
UA481 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on February 16, 2020. It departed from gate G12. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA481.
UA1194 (SFO-SJD)
This United Airlines flight traveled from San Francisco International Airport to Los Cabos International Airport, on February 16, 2020. It departed from gate E8. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1194.
UA1998 (IAH-SFO)
This United Airlines flight traveled from George Bush Intercontinental Airport to San Francisco International Airport, on February 16, 2020. It arrived at gate E8. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA1998.
UA285 (SFO-IAH)
This United Airlines flight traveled from San Francisco International Airport to George Bush Intercontinental Airport, on February 08, 2020. It departed from gate F16. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA285.
UA404 (IAH-SFO)
This United Airlines flight traveled from George Bush Intercontinental Airport to San Francisco International Airport, on February 08, 2020. It arrived at gate F16. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA404.