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.

UA701 (SFO-AUS)
This United Airlines flight traveled from San Francisco International Airport to Austin-Bergstrom International Airport, on January 24, 2020. It departed from gate E4. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA701.
UA2332 (SEA-SFO)
This United Airlines flight traveled from Tacoma International Airport to San Francisco International Airport, on January 24, 2020. It arrived at gate E4. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2332.
UA2059 (BWI-SFO)
This United Airlines flight traveled from Baltimore-Washington International Thurgood Marshall Airport to San Francisco International Airport, on January 23, 2020. It arrived at gate E7. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2059.
UA2063 (SFO-BWI)
This United Airlines flight traveled from San Francisco International Airport to Baltimore-Washington International Thurgood Marshall Airport, on January 23, 2020. It departed from gate E12. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2063.
UA2166 (ORD-SFO)
This United Airlines flight traveled from Chicago O'Hare International Airport to San Francisco International Airport, on January 23, 2020. It arrived at gate E12. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2166.
UA733 (SFO-SEA)
This United Airlines flight traveled from San Francisco International Airport to Tacoma International Airport, on January 14, 2020. It departed from gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA733.
UA2128 (PHX-SFO)
This United Airlines flight traveled from Sky Harbor International Airport to San Francisco International Airport, on January 14, 2020. It arrived at gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2128.
UA922 (FLL-SFO)
This United Airlines flight traveled from Fort Lauderdale Hollywood International Airport to San Francisco International Airport, on January 14, 2020. It arrived at gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA922.
UA2398 (SFO-PHX)
This United Airlines flight traveled from San Francisco International Airport to Sky Harbor International Airport, on January 14, 2020. It departed from gate E5. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2398.
UA574 (SFO-FLL)
This United Airlines flight traveled from San Francisco International Airport to Fort Lauderdale Hollywood International Airport, on January 13, 2020. It departed from gate E8. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA574.
UA2356 (LAS-SFO)
This United Airlines flight traveled from McCarran International Airport to San Francisco International Airport, on January 13, 2020. It arrived at gate E6. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2356.
UA2068 (SFO-LAS)
This United Airlines flight traveled from San Francisco International Airport to McCarran International Airport, on January 13, 2020. It departed from gate E6. Passengers were flying aboard a Boeing 737-800 with tail number N12221. See all the flights for UA2068.