Flights for UA1999 These are not all the flights that UA1999 has taken, just some of them that have flown in or out of SFO

UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 18, 2022. It departed from gate E12. Passengers were flying aboard a Boeing 757-300 with tail number N78866. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 17, 2022. It departed from gate F21. Passengers were flying aboard a Boeing 757-200 with tail number N12116. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 16, 2022. It departed from gate F16. Passengers were flying aboard a Boeing 757-300 with tail number N78866. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 15, 2022. It departed from gate F21. Passengers were flying aboard a Boeing 757-300 with tail number N75851. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 14, 2022. It departed from gate F12. Passengers were flying aboard a Boeing 757-300 with tail number N57864. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 13, 2022. It departed from gate F16. Passengers were flying aboard a Boeing 757-300 with tail number N57862. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 12, 2022. It departed from gate F14. Passengers were flying aboard a Boeing 757-300 with tail number N75854. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 11, 2022. It departed from gate F21. Passengers were flying aboard a Boeing 757-300 with tail number N57862. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 10, 2022. It departed from gate F3. Passengers were flying aboard a Boeing 757-300 with tail number N75853. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 09, 2022. It departed from gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N37465. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 07, 2022. It departed from gate F3. Passengers were flying aboard a Boeing 757-300 with tail number N57857. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 06, 2022. It departed from gate F3. Passengers were flying aboard a Boeing 757-300 with tail number N57862. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 05, 2022. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N66841. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 04, 2022. It departed from gate E9. Passengers were flying aboard a Boeing 757-300 with tail number N57852. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 03, 2022. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N69838. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 02, 2022. It departed from gate E5. Passengers were flying aboard an Airbus A320-200 with tail number N493UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on January 01, 2022. It departed from gate E5. Passengers were flying aboard an Airbus A320-200 with tail number N444UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 31, 2021. It departed from gate E5. Passengers were flying aboard a Boeing 737-900 with tail number N36444. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 27, 2021. It departed from gate E8. Passengers were flying aboard an Airbus A320-200 with tail number N421UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 26, 2021. It departed from gate E8. Passengers were flying aboard an Airbus A319 with tail number N835UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 25, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N78438. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 24, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N68891. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 23, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N64809. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 20, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N37474. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 19, 2021. It departed from gate E6. Passengers were flying aboard an Airbus A320-200 with tail number N485UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 18, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N69835. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 17, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N57439. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 16, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N27503. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 15, 2021. It departed from gate F14. Passengers were flying aboard a Boeing 737-900 with tail number N53442. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 14, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N37427. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 13, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N37427. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 10, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N75426. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 09, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N75426. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 08, 2021. It departed from gate E7. Passengers were flying aboard a Boeing 737-900 with tail number N73445. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 07, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N37437. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 06, 2021. It departed from gate F20. Passengers were flying aboard a Boeing 737-900 with tail number N62894. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 05, 2021. It departed from gate E4. Passengers were flying aboard an Airbus A320-200 with tail number N413UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 04, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N62883. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 03, 2021. It departed from gate E4. Passengers were flying aboard a Boeing 737-900 with tail number N62892. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 02, 2021. It departed from gate F16. Passengers were flying aboard a Boeing 737-900 with tail number N37474. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on December 01, 2021. It departed from gate F14. Passengers were flying aboard a Boeing 737-800 with tail number N86534. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 30, 2021. It departed from gate E11. Passengers were flying aboard a Boeing 737-900 with tail number N75432. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 29, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N75432. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 28, 2021. It departed from gate F19. Passengers were flying aboard a Boeing 737-900 with tail number N37471. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 27, 2021. It departed from gate E12. Passengers were flying aboard a Boeing 737-900 with tail number N38446. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 26, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N38446. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 25, 2021. It departed from gate F14. Passengers were flying aboard a Boeing 737-900 with tail number N65832. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 24, 2021. It departed from gate E10. Passengers were flying aboard a Boeing 737-900 with tail number N68836. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 23, 2021. It departed from gate E5. Passengers were flying aboard a Boeing 737-900 with tail number N62883. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 22, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N68842. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 21, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N61886. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 20, 2021. It departed from gate E4. Passengers were flying aboard a Boeing 737-900 with tail number N27421. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 19, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N66841. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 18, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N62849. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 17, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N62849. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 16, 2021. It departed from gate E11. Passengers were flying aboard a Boeing 737-900 with tail number N75426. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 15, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N75426. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 14, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N66848. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 13, 2021. It departed from gate E4. Passengers were flying aboard a Boeing 737-900 with tail number N63899. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 12, 2021. It departed from gate E4. Passengers were flying aboard a Boeing 737-900 with tail number N63899. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 11, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N66808. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 10, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N38424. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 09, 2021. It departed from gate E7. Passengers were flying aboard a Boeing 737-900 with tail number N38451. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 08, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N68836. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 07, 2021. It departed from gate E10. Passengers were flying aboard a Boeing 737-900 with tail number N47414. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 06, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-900 with tail number N37422. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 05, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-900 with tail number N81449. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 04, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N75435. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 03, 2021. It departed from gate E5. Passengers were flying aboard a Boeing 737-900 with tail number N68836. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 02, 2021. It departed from gate F3. Passengers were flying aboard a Boeing 737-900 with tail number N37437. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on November 01, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-900 with tail number N69826. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 31, 2021. It departed from gate G2. Passengers were flying aboard a Boeing 737-900 with tail number N62884. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 30, 2021. It departed from gate F4. Passengers were flying aboard an Airbus A319 with tail number N844UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 29, 2021. It departed from gate F1. Passengers were flying aboard an Airbus A319 with tail number N811UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 28, 2021. It departed from gate E10. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N27526. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 27, 2021. It departed from gate F14. Passengers were flying aboard a Boeing 737-900 with tail number N67827. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 26, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N37522. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 25, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N37530. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 24, 2021. It departed from gate E7. Passengers were flying aboard a Boeing 737-900 with tail number N53441. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 23, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-800 with tail number N73291. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 22, 2021. It departed from gate F12. Passengers were flying aboard a Boeing 757-200 with tail number N12109. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 21, 2021. It departed from gate E5. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N37504. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 20, 2021. It departed from gate E13. Passengers were flying aboard a Boeing 737-900 with tail number N75426. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 19, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-900 with tail number N78438. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 16, 2021. It departed from gate F16. Passengers were flying aboard an Airbus A319 with tail number N894UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 15, 2021. It departed from gate F4. Passengers were flying aboard an Airbus A319 with tail number N832UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 14, 2021. It departed from gate E12. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N37521. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 13, 2021. It departed from gate E3. Passengers were flying aboard a Boeing 737-900 with tail number N73445. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 12, 2021. It departed from gate F12. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N37528. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 11, 2021. It departed from gate F2. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N27519. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 10, 2021. It departed from gate F12. Passengers were flying aboard a Boeing 757-200 with tail number N17139. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 09, 2021. It departed from gate E8. Passengers were flying aboard an Airbus A319 with tail number N833UA. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 08, 2021. It departed from gate F19. Passengers were flying aboard a Boeing 737-900 with tail number N36476. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 07, 2021. It departed from gate E9. Passengers were flying aboard a Boeing 737-MAX 9 with tail number N27526. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 06, 2021. It departed from gate E8. Passengers were flying aboard a Boeing 737-800 with tail number N73283. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 05, 2021. It departed from gate E11. Passengers were flying aboard a Boeing 737-800 with tail number N76522. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 04, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-800 with tail number N17233. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 03, 2021. It departed from gate E6. Passengers were flying aboard a Boeing 737-800 with tail number N35204. See all the flights for UA1999.
UA1999 (SFO-DEN)
This United Airlines flight traveled from San Francisco International Airport to Denver International Airport, on October 02, 2021. It departed from gate F16. Passengers were flying aboard a Boeing 737-900 with tail number N81449. See all the flights for UA1999.