United Airlines flight UA 231: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu 05:20 Dallas Fort Worth (DFW) E 06:36 George Bush, Houston (IAH) C
UA 231 Non-stop Boeing 737 MAX 9 (7M9) 1:16 Operates only on 2025-06-26
Daily 07:15 Atlanta (ATL) N 09:30 Newark Liberty, New York (EWR) C
UA 231 Non-stop Airbus A319 (319) 2:15 Effective 2025-06-27 through 2025-07-31
Daily 07:30 Albuquerque (ABQ) 10:40 George Bush, Houston (IAH) C
UA 231 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-08-01 through 2025-08-18
Daily 07:40 Albuquerque (ABQ) 10:50 George Bush, Houston (IAH) C
UA 231 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-05-22 through 2025-06-25
Daily 10:25 Nashville (BNA) 12:47 George Bush, Houston (IAH) C
UA 231 Non-stop Airbus A319 (319) 2:22 Valid until 2025-05-21
Daily 11:10 Santa Ana (SNA) 14:20 Denver (DEN)
UA 231 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-08-19 through 2025-09-24
Daily 11:30 Santa Ana (SNA) 14:50 Denver (DEN)
UA 231 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-09-25 through 2025-10-25
Daily 11:30 Santa Ana (SNA) 14:40 Denver (DEN)
UA 231 Non-stop Airbus A320 (320) 2:10 Effective from 2025-10-26
Daily 17:25 Denver (DEN) 21:57 Louisville (SDF)
UA 231 Non-stop Airbus A320 (320) 2:32 Effective 2025-08-19 through 2025-09-24
Daily 17:25 Denver (DEN) 21:57 Louisville (SDF)
UA 231 Non-stop Airbus A319 (319) 2:32 Effective from 2025-10-26
Daily 17:45 Denver (DEN) 22:30 Louisville (SDF)
UA 231 Non-stop Airbus A320 (320) 2:45 Effective 2025-09-25 through 2025-10-25
Non-Direct Flights:
Daily 11:10 Santa Ana (SNA) 21:57 Louisville (SDF)
UA 231 1-stop Boeing 737 MAX 8 (7M8) 7:47 Effective 2025-08-19 through 2025-09-24
Daily 11:30 Santa Ana (SNA) 22:30 Louisville (SDF)
UA 231 1-stop Boeing 737 MAX 8 (7M8) 8:00 Effective 2025-09-25 through 2025-10-25
Daily 11:30 Santa Ana (SNA) 21:57 Louisville (SDF)
UA 231 1-stop Airbus A320 (320) 7:27 Effective from 2025-10-26
This flight number is listed as serving the following routes:


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United Airlines flight UA 231: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA231
05:20
Dallas Fort Worth (DFW) E

06:36
George Bush, Houston (IAH) C
Operates only on 2025-06-26
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:16, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA231
07:15
Atlanta (ATL) N

09:30
Newark Liberty, New York (EWR) C
Effective 2025-06-27 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:15, non-stop
Airbus A319 (319)
United Airlines UA231
07:30
Albuquerque (ABQ)

10:40
George Bush, Houston (IAH) C
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
07:40
Albuquerque (ABQ)

10:50
George Bush, Houston (IAH) C
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
10:25
Nashville (BNA)

12:47
George Bush, Houston (IAH) C
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:22, non-stop
Airbus A319 (319)
United Airlines UA231
11:10
Santa Ana (SNA)

14:20
Denver (DEN)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
11:30
Santa Ana (SNA)

14:50
Denver (DEN)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
11:30
Santa Ana (SNA)

14:40
Denver (DEN)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:10, non-stop
Airbus A320 (320)
United Airlines UA231
17:25
Denver (DEN)

21:57
Louisville (SDF)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:32, non-stop
Airbus A320 (320)
United Airlines UA231
17:25
Denver (DEN)

21:57
Louisville (SDF)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:32, non-stop
Airbus A319 (319)
United Airlines UA231
17:45
Denver (DEN)

22:30
Louisville (SDF)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:45, non-stop
Airbus A320 (320)
Non-Direct Flights:
United Airlines UA231
11:10
Santa Ana (SNA)

21:57
Louisville (SDF)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:47, 1-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
11:30
Santa Ana (SNA)

22:30
Louisville (SDF)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:00, 1-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA231
11:30
Santa Ana (SNA)

21:57
Louisville (SDF)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 7:27, 1-stop
Airbus A320 (320)
This flight number is listed as serving the following routes:
  • Albuquerque (ABQ) - George Bush, Houston (IAH)
  • Atlanta (ATL) - Newark Liberty, New York (EWR)
  • Dallas Fort Worth (DFW) - George Bush, Houston (IAH)
  • Denver (DEN) - Louisville (SDF)
  • Nashville (BNA) - George Bush, Houston (IAH)
  • Santa Ana (SNA) - Denver (DEN)
  • Santa Ana (SNA) - Louisville (SDF)
All United Airlines flights
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