United Airlines
flight
UA 1231:
Multiple routes
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FLIGHT SCHEDULE
Direct Flights:
United Airlines UA1231
Effective 2025-05-22 through 2025-06-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
Airbus A319 (319)
United Airlines UA1231
Effective 2025-06-07 through 2025-06-22
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
Duration: 2:19, non-stop
Boeing 737-800 (738)
Boeing 737-800 (738)
United Airlines UA1231
Effective 2025-06-09 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:19, non-stop
Airbus A319 (319)
Airbus A319 (319)
United Airlines UA1231
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
United Airlines UA1231
Effective 2025-05-03 through 2025-05-17
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:15, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
United Airlines UA1231
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:04, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
United Airlines UA1231
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
United Airlines UA1231
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:14, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
United Airlines UA1231
Effective 2025-07-05 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:14, non-stop
Boeing 737 MAX 9 (7M9)
Boeing 737 MAX 9 (7M9)
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Parallax here -
This flight number is listed as serving the following routes:
- Atlanta (ATL) - Chicago O'Hare (ORD)
- Miami (MIA) - Newark Liberty, New York (EWR)