United Airlines flight UA 431: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Sat 06:00 Nashville (BNA) 09:15 Newark Liberty, New York (EWR) C
UA 431 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-08-01 through 2025-08-18
Sun 06:16 Nashville (BNA) 09:31 Newark Liberty, New York (EWR) C
UA 431 Non-stop Boeing 737-900 (739) 2:15 Effective 2025-08-03 through 2025-08-17
Daily 12:30 San Jose (SJC) A 16:06 Denver (DEN)
UA 431 Non-stop Airbus A319 (319) 2:36 Effective 2025-08-19 through 2025-10-25
Daily 12:45 San Jose (SJC) A 16:10 Denver (DEN)
UA 431 Non-stop Boeing 737-800 (738) 2:25 Effective from 2025-10-26
Fri 14:47 Nashville (BNA) 17:33 San Francisco (SFO) 3
UA 431 Non-stop Airbus A319 (319) 4:46 Operates only on 2025-07-04
Daily 14:48 Nashville (BNA) 17:34 San Francisco (SFO) 3
UA 431 Non-stop Airbus A319 (319) 4:46 Effective 2025-06-26 through 2025-07-03
Daily 14:48 Nashville (BNA) 17:34 San Francisco (SFO) 3
UA 431 Non-stop Airbus A319 (319) 4:46 Effective 2025-07-05 through 2025-07-31
Daily 16:02 Fort Myers (RSW) 18:20 Denver (DEN)
UA 431 Non-stop Boeing 737-900 (739) 4:18 Valid until 2025-05-21
Mon-Thu,Sat,Sun 16:32 Saint Louis (STL) 1 18:01 Denver (DEN)
UA 431 Non-stop Boeing 737-800 (738) 2:29 Effective 2025-05-22 through 2025-06-25
Fri 16:32 Saint Louis (STL) 1 18:01 Denver (DEN)
UA 431 Non-stop Boeing 737 MAX 8 (7M8) 2:29 Effective 2025-05-23 through 2025-06-20
Daily 19:00 Denver (DEN) 19:57 Grand Junction (GJT)
UA 431 Non-stop Boeing 737-800 (738) 0:57 Effective 2025-08-19 through 2025-09-24
Daily 19:10 Denver (DEN) 20:16 Grand Junction (GJT)
UA 431 Non-stop Airbus A320 (320) 1:06 Effective 2025-09-25 through 2025-10-25
Daily 19:20 Denver (DEN) 20:25 Grand Junction (GJT)
UA 431 Non-stop Airbus A320 (320) 1:05 Effective 2025-05-22 through 2025-06-25
Daily 19:25 Denver (DEN) 20:31 Grand Junction (GJT)
UA 431 Non-stop Boeing 737-800 (738) 1:06 Valid until 2025-05-21
Daily 19:30 Denver (DEN) 20:27 Grand Junction (GJT)
UA 431 Non-stop Airbus A320 (320) 0:57 Effective from 2025-10-26
Daily 21:30 San Francisco (SFO) 3 06:14 Boston Logan (BOS) B
UA 431 Non-stop Boeing 737 MAX 9 (7M9) 5:44 Effective 2025-06-26 through 2025-07-03
The flight arrives 1 day after departure.
Daily 21:30 San Francisco (SFO) 3 06:14 Boston Logan (BOS) B
UA 431 Non-stop Boeing 737 MAX 9 (7M9) 5:44 Effective 2025-07-05 through 2025-07-31
The flight arrives 1 day after departure.
Non-Direct Flights:
Daily 12:30 San Jose (SJC) A 19:57 Grand Junction (GJT)
UA 431 1-stop Airbus A319 (319) 6:27 Effective 2025-08-19 through 2025-09-24
Daily 12:30 San Jose (SJC) A 20:16 Grand Junction (GJT)
UA 431 1-stop Airbus A319 (319) 6:46 Effective 2025-09-25 through 2025-10-25
Daily 12:45 San Jose (SJC) A 20:27 Grand Junction (GJT)
UA 431 1-stop Boeing 737-800 (738) 6:42 Effective from 2025-10-26
Daily 14:48 Nashville (BNA) 06:14 Boston Logan (BOS) B
UA 431 1-stop Airbus A319 (319) 14:26 Effective 2025-06-26 through 2025-07-03
The flight arrives 1 day after departure.
Daily 14:48 Nashville (BNA) 06:14 Boston Logan (BOS) B
UA 431 1-stop Airbus A319 (319) 14:26 Effective 2025-07-05 through 2025-07-31
The flight arrives 1 day after departure.
Daily 16:02 Fort Myers (RSW) 20:31 Grand Junction (GJT)
UA 431 1-stop Boeing 737-900 (739) 6:29 Valid until 2025-05-21
Mon-Thu,Sat,Sun 16:32 Saint Louis (STL) 1 20:25 Grand Junction (GJT)
UA 431 1-stop Boeing 737-800 (738) 4:53 Effective 2025-05-22 through 2025-06-25
Fri 16:32 Saint Louis (STL) 1 20:25 Grand Junction (GJT)
UA 431 1-stop Boeing 737 MAX 8 (7M8) 4:53 Effective 2025-05-23 through 2025-06-20
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This flight number is listed as serving the following routes:


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United Airlines flight UA 431: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA431
06:00
Nashville (BNA)

09:15
Newark Liberty, New York (EWR) C
Effective 2025-08-01 through 2025-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA431
06:16
Nashville (BNA)

09:31
Newark Liberty, New York (EWR) C
Effective 2025-08-03 through 2025-08-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-900 (739)
United Airlines UA431
12:30
San Jose (SJC) A

16:06
Denver (DEN)
Effective 2025-08-19 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:36, non-stop
Airbus A319 (319)
United Airlines UA431
12:45
San Jose (SJC) A

16:10
Denver (DEN)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:25, non-stop
Boeing 737-800 (738)
United Airlines UA431
14:47
Nashville (BNA)

17:33
San Francisco (SFO) 3
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:46, non-stop
Airbus A319 (319)
United Airlines UA431
14:48
Nashville (BNA)

17:34
San Francisco (SFO) 3
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:46, non-stop
Airbus A319 (319)
United Airlines UA431
14:48
Nashville (BNA)

17:34
San Francisco (SFO) 3
Effective 2025-07-05 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:46, non-stop
Airbus A319 (319)
United Airlines UA431
16:02
Fort Myers (RSW)

18:20
Denver (DEN)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 4:18, non-stop
Boeing 737-900 (739)
United Airlines UA431
16:32
Saint Louis (STL) 1

18:01
Denver (DEN)
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 2:29, non-stop
Boeing 737-800 (738)
United Airlines UA431
16:32
Saint Louis (STL) 1

18:01
Denver (DEN)
Effective 2025-05-23 through 2025-06-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:29, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA431
19:00
Denver (DEN)

19:57
Grand Junction (GJT)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:57, non-stop
Boeing 737-800 (738)
United Airlines UA431
19:10
Denver (DEN)

20:16
Grand Junction (GJT)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:06, non-stop
Airbus A320 (320)
United Airlines UA431
19:20
Denver (DEN)

20:25
Grand Junction (GJT)
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:05, non-stop
Airbus A320 (320)
United Airlines UA431
19:25
Denver (DEN)

20:31
Grand Junction (GJT)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:06, non-stop
Boeing 737-800 (738)
United Airlines UA431
19:30
Denver (DEN)

20:27
Grand Junction (GJT)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:57, non-stop
Airbus A320 (320)
United Airlines UA431
21:30
San Francisco (SFO) 3

06:14(+1)
Boston Logan (BOS) B
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:44, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
United Airlines UA431
21:30
San Francisco (SFO) 3

06:14(+1)
Boston Logan (BOS) B
Effective 2025-07-05 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:44, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
Non-Direct Flights:
United Airlines UA431
12:30
San Jose (SJC) A

19:57
Grand Junction (GJT)
Effective 2025-08-19 through 2025-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:27, 1-stop
Airbus A319 (319)
United Airlines UA431
12:30
San Jose (SJC) A

20:16
Grand Junction (GJT)
Effective 2025-09-25 through 2025-10-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:46, 1-stop
Airbus A319 (319)
United Airlines UA431
12:45
San Jose (SJC) A

20:27
Grand Junction (GJT)
Effective from 2025-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:42, 1-stop
Boeing 737-800 (738)
United Airlines UA431
14:48
Nashville (BNA)

06:14(+1)
Boston Logan (BOS) B
Effective 2025-06-26 through 2025-07-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 14:26, 1-stop
Airbus A319 (319)
The flight arrives 1 day after departure.
United Airlines UA431
14:48
Nashville (BNA)

06:14(+1)
Boston Logan (BOS) B
Effective 2025-07-05 through 2025-07-31
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 14:26, 1-stop
Airbus A319 (319)
The flight arrives 1 day after departure.
United Airlines UA431
16:02
Fort Myers (RSW)

20:31
Grand Junction (GJT)
Valid until 2025-05-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:29, 1-stop
Boeing 737-900 (739)
United Airlines UA431
16:32
Saint Louis (STL) 1

20:25
Grand Junction (GJT)
Effective 2025-05-22 through 2025-06-25
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 4:53, 1-stop
Boeing 737-800 (738)
United Airlines UA431
16:32
Saint Louis (STL) 1

20:25
Grand Junction (GJT)
Effective 2025-05-23 through 2025-06-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:53, 1-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Grand Junction (GJT)
  • Fort Myers (RSW) - Denver (DEN)
  • Fort Myers (RSW) - Grand Junction (GJT)
  • Nashville (BNA) - Boston Logan (BOS)
  • Nashville (BNA) - Newark Liberty, New York (EWR)
  • Nashville (BNA) - San Francisco (SFO)
  • Saint Louis (STL) - Denver (DEN)
  • Saint Louis (STL) - Grand Junction (GJT)
  • San Francisco (SFO) - Boston Logan (BOS)
  • San Jose (SJC) - Denver (DEN)
  • San Jose (SJC) - Grand Junction (GJT)
All United Airlines flights
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