United Airlines flight UA 1251: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue 09:40 Denver (DEN) 15:00 Raleigh/Durham (RDU) 2
UA 1251 Non-stop Boeing 737 MAX 8 (7M8) 3:20 Effective 2025-05-06 through 2025-05-20
Mon,Wed-Fri,Sun 09:46 Denver (DEN) 15:08 Raleigh/Durham (RDU) 2
UA 1251 Non-stop Boeing 737-900 (739) 3:22 Valid until 2025-05-19
Sat 09:46 Denver (DEN) 15:08 Raleigh/Durham (RDU) 2
UA 1251 Non-stop Boeing 737-800 (738) 3:22 Effective 2025-05-03 through 2025-05-17
Wed 09:46 Denver (DEN) 15:08 Raleigh/Durham (RDU) 2
UA 1251 Non-stop Boeing 737 MAX 9 (7M9) 3:22 Operates only on 2025-05-21
Daily 13:10 Dulles, Washington (IAD) 15:58 Fort Myers (RSW)
UA 1251 Non-stop Boeing 737-800 (738) 2:48 Effective 2025-10-26 through 2025-12-17
Daily 13:10 Dulles, Washington (IAD) 15:58 Fort Myers (RSW)
UA 1251 Non-stop Boeing 737-800 (738) 2:48 Effective from 2026-01-06
Daily 13:20 Dulles, Washington (IAD) 15:57 Fort Myers (RSW)
UA 1251 Non-stop Boeing 737-800 (738) 2:37 Effective 2025-08-19 through 2025-10-25
Daily 18:05 Fort Myers (RSW) 20:05 Chicago O'Hare (ORD) 1
UA 1251 Non-stop Boeing 737-800 (738) 3:00 Effective 2026-01-06 through 2026-02-11
Daily 19:27 Fort Myers (RSW) 21:27 Chicago O'Hare (ORD) 1
UA 1251 Non-stop Boeing 737-800 (738) 3:00 Effective from 2026-02-12
Daily 23:00 Honolulu (HNL) 2 07:37 Los Angeles (LAX) 7
UA 1251 Non-stop Boeing 757-300 (753) 5:37 Effective 2025-05-22 through 2025-07-03
The flight arrives 1 day after departure.
Daily 23:00 Honolulu (HNL) 2 07:37 Los Angeles (LAX) 7
UA 1251 Non-stop Boeing 757-300 (753) 5:37 Effective 2025-07-05 through 2025-08-18
The flight arrives 1 day after departure.
Daily 23:55 Honolulu (HNL) 2 07:35 Los Angeles (LAX) 7
UA 1251 Non-stop Boeing 757-300 (753) 5:40 Effective 2025-12-18 through 2026-01-05
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 13:10 Dulles, Washington (IAD) 20:05 Chicago O'Hare (ORD) 1
UA 1251 1-stop Boeing 737-800 (738) 7:55 Effective 2026-01-06 through 2026-02-11
Daily 13:10 Dulles, Washington (IAD) 21:27 Chicago O'Hare (ORD) 1
UA 1251 1-stop Boeing 737-800 (738) 9:17 Effective from 2026-02-12
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This flight number is listed as serving the following routes:


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United Airlines flight UA 1251: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1251
09:40
Denver (DEN)

15:00
Raleigh/Durham (RDU) 2
Effective 2025-05-06 through 2025-05-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:20, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1251
09:46
Denver (DEN)

15:08
Raleigh/Durham (RDU) 2
Valid until 2025-05-19
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:22, non-stop
Boeing 737-900 (739)
United Airlines UA1251
09:46
Denver (DEN)

15:08
Raleigh/Durham (RDU) 2
Effective 2025-05-03 through 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:22, non-stop
Boeing 737-800 (738)
United Airlines UA1251
09:46
Denver (DEN)

15:08
Raleigh/Durham (RDU) 2
Operates only on 2025-05-21
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:22, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1251
13:10
Dulles, Washington (IAD)

15:58
Fort Myers (RSW)
Effective 2025-10-26 through 2025-12-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:48, non-stop
Boeing 737-800 (738)
United Airlines UA1251
13:10
Dulles, Washington (IAD)

15:58
Fort Myers (RSW)
Effective from 2026-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:48, non-stop
Boeing 737-800 (738)
United Airlines UA1251
13:20
Dulles, Washington (IAD)

15:57
Fort Myers (RSW)
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:37, non-stop
Boeing 737-800 (738)
United Airlines UA1251
18:05
Fort Myers (RSW)

20:05
Chicago O'Hare (ORD) 1
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:00, non-stop
Boeing 737-800 (738)
United Airlines UA1251
19:27
Fort Myers (RSW)

21:27
Chicago O'Hare (ORD) 1
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:00, non-stop
Boeing 737-800 (738)
United Airlines UA1251
23:00
Honolulu (HNL) 2

07:37(+1)
Los Angeles (LAX) 7
Effective 2025-05-22 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:37, non-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
United Airlines UA1251
23:00
Honolulu (HNL) 2

07:37(+1)
Los Angeles (LAX) 7
Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:37, non-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
United Airlines UA1251
23:55
Honolulu (HNL) 2

07:35(+1)
Los Angeles (LAX) 7
Effective 2025-12-18 through 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:40, non-stop
Boeing 757-300 (753)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA1251
13:10
Dulles, Washington (IAD)

20:05
Chicago O'Hare (ORD) 1
Effective 2026-01-06 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:55, 1-stop
Boeing 737-800 (738)
United Airlines UA1251
13:10
Dulles, Washington (IAD)

21:27
Chicago O'Hare (ORD) 1
Effective from 2026-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 9:17, 1-stop
Boeing 737-800 (738)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Raleigh/Durham (RDU)
  • Dulles, Washington (IAD) - Chicago O'Hare (ORD)
  • Dulles, Washington (IAD) - Fort Myers (RSW)
  • Fort Myers (RSW) - Chicago O'Hare (ORD)
  • Honolulu (HNL) - Los Angeles (LAX)
All United Airlines flights
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