Flights for the airplane with tail number N39423 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.

UA662 (SAN-SFO)
This United Airlines flight traveled from San Diego International Airport to San Francisco International Airport, on October 21, 2019. It arrived at gate E10. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA662.
UA2345 (SFO-LAS)
This United Airlines flight traveled from San Francisco International Airport to McCarran International Airport, on October 21, 2019. It departed from gate E10. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2345.
UA1475 (SFO-SAN)
This United Airlines flight traveled from San Francisco International Airport to San Diego International Airport, on October 21, 2019. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1475.
UA2161 (SFO-SEA)
This United Airlines flight traveled from San Francisco International Airport to Tacoma International Airport, on October 21, 2019. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2161.
UA1723 (SFO-KOA)
This United Airlines flight traveled from San Francisco International Airport to Kailua-Kona International Airport, on October 20, 2019. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1723.
UA460 (LAX-SFO)
This United Airlines flight traveled from Los Angeles International Airport to San Francisco International Airport, on October 20, 2019. It arrived at gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA460.
UA376 (PDX-SFO)
This United Airlines flight traveled from Portland International Airport to San Francisco International Airport, on October 20, 2019. It arrived at gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA376.
UA433 (SFO-LAX)
This United Airlines flight traveled from San Francisco International Airport to Los Angeles International Airport, on October 20, 2019. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA433.
UA205 (SFO-PDX)
This United Airlines flight traveled from San Francisco International Airport to Portland International Airport, on October 20, 2019. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA205.
UA1723 (SFO-KOA)
This United Airlines flight traveled from San Francisco International Airport to Kailua-Kona International Airport, on October 19, 2019. It departed from gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1723.
UA1973 (IAH-SFO)
This United Airlines flight traveled from George Bush Intercontinental Airport to San Francisco International Airport, on October 19, 2019. It arrived at gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA1973.
UA2128 (PIT-SFO)
This United Airlines flight traveled from Greater Pittsburgh International Airport to San Francisco International Airport, on October 17, 2019. It arrived at gate E5. Passengers were flying aboard a Boeing 737-900 with tail number N39423. See all the flights for UA2128.