United Airlines flight UA 2451: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Seattle-Tacoma (SEA) 13:06 Chicago O'Hare (ORD) 1
UA 2451 Non-stop Airbus A321neo (32Q) 4:06 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 12:29 Santa Ana (SNA) 17:39 Houston George Bush (IAH) C
UA 2451 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-03-05 through 2026-03-13
Daily 12:29 Santa Ana (SNA) 17:39 Houston George Bush (IAH) C
UA 2451 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-03-14 through 2026-03-28
Daily 13:15 Phoenix Sky Harbor (PHX) 3 16:53 Houston George Bush (IAH) C
UA 2451 Non-stop Boeing 737-900 (739) 2:38 Valid until 2026-01-05
Daily 14:10 Chicago O'Hare (ORD) 1 17:18 Houston George Bush (IAH) C
UA 2451 Non-stop Airbus A321neo (32Q) 3:08 Effective 2026-02-12 through 2026-03-04
Sat 18:05 Houston George Bush (IAH) C 21:29 Orlando (MCO) B
UA 2451 Non-stop Boeing 737 MAX 9 (7M9) 2:24 Operates only on 2026-03-07
Daily 18:30 Houston George Bush (IAH) C 21:50 Orlando (MCO) B
UA 2451 Non-stop Boeing 737-800 (738) 2:20 Effective from 2026-05-21
Daily 18:32 Houston George Bush (IAH) C 21:58 Orlando (MCO) B
UA 2451 Non-stop Boeing 737 MAX 9 (7M9) 2:26 Effective 2026-04-30 through 2026-05-20
Daily 18:34 Houston George Bush (IAH) C 22:00 Orlando (MCO) B
UA 2451 Non-stop Boeing 737 MAX 9 (7M9) 2:26 Effective 2026-03-29 through 2026-04-29
Daily 18:35 Houston George Bush (IAH) C 21:59 Orlando (MCO) B
UA 2451 Non-stop Boeing 737-900 (739) 2:24 Valid until 2026-01-05
Mon-Fri,Sun 18:35 Houston George Bush (IAH) C 21:59 Orlando (MCO) B
UA 2451 Non-stop Boeing 737 MAX 9 (7M9) 2:24 Effective 2026-03-05 through 2026-03-13
Daily 18:35 Houston George Bush (IAH) C 21:59 Orlando (MCO) B
UA 2451 Non-stop Boeing 737 MAX 9 (7M9) 2:24 Effective 2026-03-14 through 2026-03-28
Mon-Fri,Sun 18:36 Houston George Bush (IAH) C 21:59 Orlando (MCO) B
UA 2451 Non-stop Boeing 737-900 (739) 2:23 Effective 2026-02-12 through 2026-03-04
Sat 18:36 Houston George Bush (IAH) C 21:59 Orlando (MCO) B
UA 2451 Non-stop Boeing 737-800 (738) 2:23 Effective 2026-02-14 through 2026-02-28
Daily 18:48 Houston George Bush (IAH) C 22:12 Orlando (MCO) B
UA 2451 Non-stop Boeing 737-900 (739) 2:24 Effective 2026-01-06 through 2026-02-11
Non-Direct Flights:
Daily 07:00 Seattle-Tacoma (SEA) 17:18 Houston George Bush (IAH) C
UA 2451 1-stop Airbus A321neo (32Q) 8:18 Effective 2026-02-12 through 2026-03-04
Mon-Fri,Sun 12:29 Santa Ana (SNA) 21:59 Orlando (MCO) B
UA 2451 1-stop Boeing 737 MAX 8 (7M8) 6:30 Effective 2026-03-05 through 2026-03-13
Daily 12:29 Santa Ana (SNA) 21:59 Orlando (MCO) B
UA 2451 1-stop Boeing 737 MAX 8 (7M8) 6:30 Effective 2026-03-14 through 2026-03-28
Daily 13:15 Phoenix Sky Harbor (PHX) 3 21:59 Orlando (MCO) B
UA 2451 1-stop Boeing 737-900 (739) 6:44 Valid until 2026-01-05
Daily 14:10 Chicago O'Hare (ORD) 1 21:59 Orlando (MCO) B
UA 2451 1-stop Airbus A321neo (32Q) 6:49 Effective 2026-02-12 through 2026-03-04
Daily 07:00 Seattle-Tacoma (SEA) 21:59 Orlando (MCO) B
UA 2451 2-stop Airbus A321neo (32Q) 11:59 Effective 2026-02-12 through 2026-03-04
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This flight number is listed as serving the following routes:


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United Airlines flight UA 2451: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA2451
07:00
Seattle-Tacoma (SEA)

13:06
Chicago O'Hare (ORD) 1
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:06, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA2451
12:29
Santa Ana (SNA)

17:39
Houston George Bush (IAH) C
Effective 2026-03-05 through 2026-03-13
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA2451
12:29
Santa Ana (SNA)

17:39
Houston George Bush (IAH) C
Effective 2026-03-14 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA2451
13:15
Phoenix Sky Harbor (PHX) 3

16:53
Houston George Bush (IAH) C
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:38, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA2451
14:10
Chicago O'Hare (ORD) 1

17:18
Houston George Bush (IAH) C
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:08, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA2451
18:05
Houston George Bush (IAH) C

21:29
Orlando (MCO) B
Operates only on 2026-03-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:24, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2451
18:30
Houston George Bush (IAH) C

21:50
Orlando (MCO) B
Effective from 2026-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA2451
18:32
Houston George Bush (IAH) C

21:58
Orlando (MCO) B
Effective 2026-04-30 through 2026-05-20
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2451
18:34
Houston George Bush (IAH) C

22:00
Orlando (MCO) B
Effective 2026-03-29 through 2026-04-29
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:26, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2451
18:35
Houston George Bush (IAH) C

21:59
Orlando (MCO) B
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA2451
18:35
Houston George Bush (IAH) C

21:59
Orlando (MCO) B
Effective 2026-03-05 through 2026-03-13
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:24, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2451
18:35
Houston George Bush (IAH) C

21:59
Orlando (MCO) B
Effective 2026-03-14 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA2451
18:36
Houston George Bush (IAH) C

21:59
Orlando (MCO) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:23, non-stop
Boeing 737-900 (739)
Direct Flights:
United Airlines UA2451
18:36
Houston George Bush (IAH) C

21:59
Orlando (MCO) B
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:23, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA2451
18:48
Houston George Bush (IAH) C

22:12
Orlando (MCO) B
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:24, non-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA2451
07:00
Seattle-Tacoma (SEA)

17:18
Houston George Bush (IAH) C
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:18, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA2451
12:29
Santa Ana (SNA)

21:59
Orlando (MCO) B
Effective 2026-03-05 through 2026-03-13
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 6:30, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA2451
12:29
Santa Ana (SNA)

21:59
Orlando (MCO) B
Effective 2026-03-14 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:30, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
United Airlines UA2451
13:15
Phoenix Sky Harbor (PHX) 3

21:59
Orlando (MCO) B
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:44, 1-stop
Boeing 737-900 (739)
Non-Direct Flights:
United Airlines UA2451
14:10
Chicago O'Hare (ORD) 1

21:59
Orlando (MCO) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:49, 1-stop
Airbus A321neo (32Q)
Non-Direct Flights:
United Airlines UA2451
07:00
Seattle-Tacoma (SEA)

21:59
Orlando (MCO) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 11:59, 2-stop
Airbus A321neo (32Q)
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This flight number is listed as serving the following routes:
  • Chicago O'Hare (ORD) - Houston George Bush (IAH)
  • Chicago O'Hare (ORD) - Orlando (MCO)
  • Houston George Bush (IAH) - Orlando (MCO)
  • Phoenix Sky Harbor (PHX) - Houston George Bush (IAH)
  • Phoenix Sky Harbor (PHX) - Orlando (MCO)
  • Santa Ana (SNA) - Houston George Bush (IAH)
  • Santa Ana (SNA) - Orlando (MCO)
  • Seattle-Tacoma (SEA) - Chicago O'Hare (ORD)
  • Seattle-Tacoma (SEA) - Houston George Bush (IAH)
  • Seattle-Tacoma (SEA) - Orlando (MCO)
All United Airlines flights
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