United Airlines
vol
UA 643:
Multiple routes
HORAIRES DES VOLS
Vols directs:
United Airlines UA643
Effective from 2026-03-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:47, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-01-06 through 2026-01-07
Lun
-
-
Mar
Mer
Jeu
-
-
Ven
-
-
Sam
-
-
Dim
-
-
Duration: 1:46, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vols directs:
United Airlines UA643
Effective 2026-01-08 through 2026-01-15
Lun
Mar
-
-
Mer
Jeu
Ven
-
-
Sam
-
-
Dim
Duration: 1:46, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-01-09 through 2026-01-13
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
Sam
Dim
-
-
Duration: 1:46, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols directs:
United Airlines UA643
Effective 2026-01-16 through 2026-02-11
Lun
Mar
-
-
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 1:46, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-01-17 through 2026-02-10
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 1:46, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols directs:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 1:48, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols directs:
United Airlines UA643
Effective 2026-02-14 through 2026-02-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 1:48, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols directs:
United Airlines UA643
Effective 2026-03-05 through 2026-03-27
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 1:47, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols directs:
United Airlines UA643
Effective 2026-03-07 through 2026-03-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 1:47, non-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols directs:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 2:24, non-stop
Airbus A320 (320)
Airbus A320 (320)
Vols directs:
United Airlines UA643
Effective 2026-03-29 through 2026-04-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:46, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:29, non-stop
Airbus A320 (320)
Airbus A320 (320)
Vols directs:
United Airlines UA643
Effective 2026-04-30 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:42, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-01-06 through 2026-02-11
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-03-05 through 2026-03-28
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
-
-
Duration: 1:37, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-03-08 through 2026-03-22
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
-
-
Dim
Duration: 1:37, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols directs:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 1:30, non-stop
Airbus A320 (320)
Airbus A320 (320)
Vols directs:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 3:07, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Vols directs:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-02-14 through 2026-02-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 3:10, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Vols directs:
United Airlines UA643
Effective 2026-03-29 through 2026-04-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 3:13, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-04-30 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 3:13, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols directs:
United Airlines UA643
Effective 2026-01-06 through 2026-02-11
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 3:12, non-stop
Boeing 737-700 (73G)
Boeing 737-700 (73G)
Vols indirects:
United Airlines UA643
Effective 2026-03-29 through 2026-04-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 6:33, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-04-30 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 6:35, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 6:16, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-06 through 2026-01-07
Lun
-
-
Mar
Mer
Jeu
-
-
Ven
-
-
Sam
-
-
Dim
-
-
Duration: 6:15, 1-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vols indirects:
United Airlines UA643
Effective 2026-01-08 through 2026-01-15
Lun
Mar
-
-
Mer
Jeu
Ven
-
-
Sam
-
-
Dim
Duration: 6:15, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-09 through 2026-01-13
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
Sam
Dim
-
-
Duration: 6:15, 1-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Effective 2026-01-16 through 2026-02-11
Lun
Mar
-
-
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 6:15, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-17 through 2026-02-10
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 6:15, 1-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 6:18, 1-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols indirects:
United Airlines UA643
Effective 2026-02-14 through 2026-02-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 6:18, 1-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Effective 2026-03-05 through 2026-03-27
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 6:22, 1-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols indirects:
United Airlines UA643
Effective 2026-03-07 through 2026-03-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 6:22, 1-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 5:17, 1-stop
Airbus A320 (320)
Airbus A320 (320)
Vols indirects:
United Airlines UA643
Effective 2026-03-29 through 2026-04-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 8:06, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 8:03, 1-stop
Airbus A320 (320)
Airbus A320 (320)
Vols indirects:
United Airlines UA643
Effective 2026-04-30 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 8:04, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-06 through 2026-02-11
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 8:06, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 7:52, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 7:34, 1-stop
Airbus A320 (320)
Airbus A320 (320)
Vols indirects:
United Airlines UA643
Effective 2026-03-29 through 2026-04-29
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 12:53, 2-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-04-30 through 2026-05-20
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 12:57, 2-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective from 2026-05-21
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 12:50, 2-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-06 through 2026-01-07
Lun
-
-
Mar
Mer
Jeu
-
-
Ven
-
-
Sam
-
-
Dim
-
-
Duration: 12:46, 2-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
Vols indirects:
United Airlines UA643
Effective 2026-01-08 through 2026-01-15
Lun
Mar
-
-
Mer
Jeu
Ven
-
-
Sam
-
-
Dim
Duration: 12:46, 2-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-09 through 2026-01-13
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
Sam
Dim
-
-
Duration: 12:46, 2-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Effective 2026-01-16 through 2026-02-11
Lun
Mar
-
-
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 12:46, 2-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Vols indirects:
United Airlines UA643
Effective 2026-01-17 through 2026-02-10
Lun
-
-
Mar
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 12:46, 2-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Effective 2026-02-12 through 2026-03-04
Lun
Mar
Mer
Jeu
Ven
Sam
-
-
Dim
Duration: 12:35, 2-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
Vols indirects:
United Airlines UA643
Effective 2026-02-14 through 2026-02-28
Lun
-
-
Mar
-
-
Mer
-
-
Jeu
-
-
Ven
-
-
Sam
Dim
-
-
Duration: 12:35, 2-stop
Boeing 737-900 (739)
Boeing 737-900 (739)
Vols indirects:
United Airlines UA643
Valid until 2026-01-05
Lun
Mar
Mer
Jeu
Ven
Sam
Dim
Duration: 11:21, 2-stop
Airbus A320 (320)
Airbus A320 (320)
This flight number is listed as serving the following routes:
- Las Vegas Harry Reid (LAS) - Houston George Bush (IAH)
- Las Vegas Harry Reid (LAS) - San Francisco (SFO)
- Las Vegas Harry Reid (LAS) - Santa Ana (SNA)
- San Francisco (SFO) - Houston George Bush (IAH)
- San Francisco (SFO) - Santa Ana (SNA)
- Santa Ana (SNA) - Houston George Bush (IAH)
- Seattle-Tacoma (SEA) - Houston George Bush (IAH)
- Seattle-Tacoma (SEA) - San Francisco (SFO)
- Seattle-Tacoma (SEA) - Santa Ana (SNA)