Flights for UA421 These are not all the flights that UA421 has taken, just some of them that have flown in or out of SFO

UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on December 03, 2021. It arrived at gate F19. Passengers were flying aboard a Boeing 737-900 with tail number N65832. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on December 02, 2021. It arrived at gate F12. Passengers were flying aboard a Boeing 757-300 with tail number N77867. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on December 01, 2021. It arrived at gate F17. Passengers were flying aboard a Boeing 757-300 with tail number N57864. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 30, 2021. It arrived at gate E7. Passengers were flying aboard a Boeing 757-300 with tail number N57863. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 29, 2021. It arrived at gate F16. Passengers were flying aboard a Boeing 757-300 with tail number N75851. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 28, 2021. It arrived at gate F14. Passengers were flying aboard a Boeing 757-300 with tail number N75861. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 27, 2021. It arrived at gate F17. Passengers were flying aboard a Boeing 757-300 with tail number N57862. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 26, 2021. It arrived at gate F12. Passengers were flying aboard a Boeing 757-300 with tail number N73860. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 24, 2021. It arrived at gate E7. Passengers were flying aboard a Boeing 757-300 with tail number N75851. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 23, 2021. It arrived at gate F12. Passengers were flying aboard a Boeing 757-300 with tail number N57852. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 22, 2021. It arrived at gate F14. Passengers were flying aboard a Boeing 757-300 with tail number N74856. See all the flights for UA421.
UA421 (DEN-SFO)
This United Airlines flight traveled from Denver International Airport to San Francisco International Airport, on November 21, 2021. It arrived at gate F19. Passengers were flying aboard a Boeing 757-300 with tail number N57852. See all the flights for UA421.