United Airlines flight UA 1646: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Sat 08:00 Santa Ana (SNA) 13:22 George Bush, Houston (IAH) C
UA 1646 Non-stop Boeing 737-700 (73G) 3:22 Effective 2025-06-26 through 2025-07-31
Sun 08:15 Santa Ana (SNA) 13:37 George Bush, Houston (IAH) C
UA 1646 Non-stop Boeing 737-700 (73G) 3:22 Effective 2025-06-29 through 2025-07-27
Daily 14:15 Austin (AUS) 15:14 George Bush, Houston (IAH) C
UA 1646 Non-stop Boeing 737-800 (738) 0:59 Effective 2025-08-19 through 2025-09-24
Daily 14:15 Austin (AUS) 15:22 George Bush, Houston (IAH) C
UA 1646 Non-stop Boeing 737-800 (738) 1:07 Effective 2025-09-25 through 2025-10-25
Daily 14:15 Austin (AUS) 15:14 George Bush, Houston (IAH) C
UA 1646 Non-stop Boeing 737-800 (738) 0:59 Effective from 2025-10-26
Daily 16:20 George Bush, Houston (IAH) C 21:01 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:41 Effective 2025-09-25 through 2025-10-25
Daily 16:30 George Bush, Houston (IAH) C 21:11 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 757-200 (752) 3:41 Effective 2025-08-19 through 2025-09-24
Daily 16:30 George Bush, Houston (IAH) C 20:58 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737 MAX 8 (7M8) 3:28 Effective from 2025-10-26
Sat 16:40 George Bush, Houston (IAH) C 21:28 Newark Liberty, New York (EWR) A
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:48 Effective 2025-05-03 through 2025-05-17
Daily 16:40 George Bush, Houston (IAH) C 21:26 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 757-200 (752) 3:46 Effective 2025-06-26 through 2025-08-18
Mon-Fri 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737-900 (739) 3:46 Effective 2025-05-22 through 2025-05-30
Sat 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) A
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:46 Operates only on 2025-05-24
Sun 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:46 Operates only on 2025-05-25
Sat 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) A
UA 1646 Non-stop Boeing 737 MAX 8 (7M8) 3:46 Operates only on 2025-05-31
Mon-Fri,Sun 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737-900 (739) 3:46 Effective 2025-06-01 through 2025-06-08
Mon,Sat 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737 MAX 8 (7M8) 3:46 Effective 2025-06-07 through 2025-06-09
Mon-Fri,Sun 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737-900 (739) 3:46 Effective 2025-06-10 through 2025-06-25
Sat 16:43 George Bush, Houston (IAH) C 21:29 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:46 Operates only on 2025-06-14
Sat 16:47 George Bush, Houston (IAH) C 21:33 Newark Liberty, New York (EWR) C
UA 1646 Non-stop Boeing 737-900 (739) 3:46 Operates only on 2025-06-21
Mon 16:55 George Bush, Houston (IAH) C 21:43 Newark Liberty, New York (EWR) A
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:48 Effective 2025-05-05 through 2025-05-19
Tue-Fri,Sun 17:12 George Bush, Houston (IAH) C 22:00 Newark Liberty, New York (EWR) A
UA 1646 Non-stop Boeing 737 MAX 9 (7M9) 3:48 Valid until 2025-05-21
Non-Direct Flights:
Mon-Sat 08:00 Santa Ana (SNA) 21:26 Newark Liberty, New York (EWR) C
UA 1646 1-stop Boeing 737-700 (73G) 10:26 Effective 2025-06-26 through 2025-07-31
Sun 08:15 Santa Ana (SNA) 21:26 Newark Liberty, New York (EWR) C
UA 1646 1-stop Boeing 737-700 (73G) 10:11 Effective 2025-06-29 through 2025-07-27
Daily 14:15 Austin (AUS) 21:11 Newark Liberty, New York (EWR) C
UA 1646 1-stop Boeing 737-800 (738) 5:56 Effective 2025-08-19 through 2025-09-24
Daily 14:15 Austin (AUS) 21:01 Newark Liberty, New York (EWR) C
UA 1646 1-stop Boeing 737-800 (738) 5:46 Effective 2025-09-25 through 2025-10-25
Daily 14:15 Austin (AUS) 20:58 Newark Liberty, New York (EWR) C
UA 1646 1-stop Boeing 737-800 (738) 5:43 Effective from 2025-10-26
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1646: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1646
08:00
Santa Ana (SNA)

13:22
George Bush, Houston (IAH) C
Effective 2025-06-26 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 3:22, non-stop
Boeing 737-700 (73G)
United Airlines UA1646
08:15
Santa Ana (SNA)

13:37
George Bush, Houston (IAH) C
Effective 2025-06-29 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:22, non-stop
Boeing 737-700 (73G)
United Airlines UA1646
14:15
Austin (AUS)

15:14
George Bush, Houston (IAH) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:59, non-stop
Boeing 737-800 (738)
United Airlines UA1646
14:15
Austin (AUS)

15:22
George Bush, Houston (IAH) C
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:07, non-stop
Boeing 737-800 (738)
United Airlines UA1646
14:15
Austin (AUS)

15:14
George Bush, Houston (IAH) C
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:59, non-stop
Boeing 737-800 (738)
United Airlines UA1646
16:20
George Bush, Houston (IAH) C

21:01
Newark Liberty, New York (EWR) C
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:41, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
16:30
George Bush, Houston (IAH) C

21:11
Newark Liberty, New York (EWR) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:41, non-stop
Boeing 757-200 (752)
United Airlines UA1646
16:30
George Bush, Houston (IAH) C

20:58
Newark Liberty, New York (EWR) C
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:28, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1646
16:40
George Bush, Houston (IAH) C

21:28
Newark Liberty, New York (EWR) A
Effective 2025-05-03 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:48, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
16:40
George Bush, Houston (IAH) C

21:26
Newark Liberty, New York (EWR) C
Effective 2025-06-26 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:46, non-stop
Boeing 757-200 (752)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Effective 2025-05-22 through 2025-05-30
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 3:46, non-stop
Boeing 737-900 (739)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) A
Operates only on 2025-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:46, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:46, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) A
Operates only on 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:46, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Effective 2025-06-01 through 2025-06-08
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:46, non-stop
Boeing 737-900 (739)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Effective 2025-06-07 through 2025-06-09
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:46, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Effective 2025-06-10 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:46, non-stop
Boeing 737-900 (739)
United Airlines UA1646
16:43
George Bush, Houston (IAH) C

21:29
Newark Liberty, New York (EWR) C
Operates only on 2025-06-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:46, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
16:47
George Bush, Houston (IAH) C

21:33
Newark Liberty, New York (EWR) C
Operates only on 2025-06-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:46, non-stop
Boeing 737-900 (739)
United Airlines UA1646
16:55
George Bush, Houston (IAH) C

21:43
Newark Liberty, New York (EWR) A
Effective 2025-05-05 through 2025-05-19
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:48, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1646
17:12
George Bush, Houston (IAH) C

22:00
Newark Liberty, New York (EWR) A
Valid until 2025-05-21
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:48, non-stop
Boeing 737 MAX 9 (7M9)
Non-Direct Flights:
United Airlines UA1646
08:00
Santa Ana (SNA)

21:26
Newark Liberty, New York (EWR) C
Effective 2025-06-26 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 10:26, 1-stop
Boeing 737-700 (73G)
United Airlines UA1646
08:15
Santa Ana (SNA)

21:26
Newark Liberty, New York (EWR) C
Effective 2025-06-29 through 2025-07-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 10:11, 1-stop
Boeing 737-700 (73G)
United Airlines UA1646
14:15
Austin (AUS)

21:11
Newark Liberty, New York (EWR) C
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:56, 1-stop
Boeing 737-800 (738)
United Airlines UA1646
14:15
Austin (AUS)

21:01
Newark Liberty, New York (EWR) C
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:46, 1-stop
Boeing 737-800 (738)
United Airlines UA1646
14:15
Austin (AUS)

20:58
Newark Liberty, New York (EWR) C
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:43, 1-stop
Boeing 737-800 (738)
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Parallax here -
This flight number is listed as serving the following routes:
  • Austin (AUS) - George Bush, Houston (IAH)
  • Austin (AUS) - Newark Liberty, New York (EWR)
  • George Bush, Houston (IAH) - Newark Liberty, New York (EWR)
  • Santa Ana (SNA) - George Bush, Houston (IAH)
  • Santa Ana (SNA) - Newark Liberty, New York (EWR)
All United Airlines flights
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