United Airlines flight UA 331: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Daily 07:00 Detroit (DTW) E 09:26 San Francisco (SFO) 3
UA 331 Non-stop Airbus A319 (319) 5:26 Effective 2026-03-05 through 2026-03-28
Wed 08:30 Spokane (GEG) 12:04 Denver (DEN)
UA 331 Non-stop Airbus A319 (319) 2:34 Operates only on 2026-02-04
Sat 09:43 Denver (DEN) 15:38 Boston Logan (BOS) B
UA 331 Non-stop Airbus A321neo (32Q) 3:55 Effective 2026-02-14 through 2026-02-21
Mon-Fri,Sun 09:51 Denver (DEN) 15:44 Boston Logan (BOS) B
UA 331 Non-stop Boeing 737 MAX 9 (7M9) 3:53 Effective 2026-02-12 through 2026-03-04
Sat 09:51 Denver (DEN) 15:44 Boston Logan (BOS) B
UA 331 Non-stop Boeing 737 MAX 8 (7M8) 3:53 Operates only on 2026-02-28
Daily 10:05 Denver (DEN) 12:44 Omaha (OMA)
UA 331 Non-stop Airbus A320 (320) 1:39 Effective 2026-01-06 through 2026-02-03
Daily 10:05 Denver (DEN) 12:44 Omaha (OMA)
UA 331 Non-stop Airbus A320 (320) 1:39 Effective 2026-02-05 through 2026-02-11
Daily 10:13 Denver (DEN) 16:02 Hartford (BDL)
UA 331 Non-stop Boeing 737-800 (738) 3:49 Valid until 2026-01-05
Mon,Wed,Fri,Sun 17:00 Paris Charles de Gaulle (CDG) 1 19:45 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-300 (763) 8:45 Effective 2026-03-29 through 2026-05-20
Daily 17:00 Paris Charles de Gaulle (CDG) 1 19:55 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-300 (763) 8:55 Effective 2026-05-22 through 2026-08-01
Daily 17:00 Paris Charles de Gaulle (CDG) 1 19:55 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-400 (764) 8:55 Effective 2026-08-02 through 2026-09-07
Tue 17:00 Paris Charles de Gaulle (CDG) 1 19:50 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-400 (764) 8:50 Operates only on 2026-09-08
Daily 17:00 Paris Charles de Gaulle (CDG) 1 19:50 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-300 (763) 8:50 Effective 2026-09-09 through 2026-09-24
Daily 17:00 Paris Charles de Gaulle (CDG) 1 19:55 Washington Dulles (IAD)
UA 331 Non-stop Boeing 767-300 (763) 8:55 Effective 2026-09-25 through 2026-10-24
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This flight number is listed as serving the following routes:


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United Airlines flight UA 331: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA331
07:00
Detroit (DTW) E

09:26
San Francisco (SFO) 3
Effective 2026-03-05 through 2026-03-28
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:26, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA331
08:30
Spokane (GEG)

12:04
Denver (DEN)
Operates only on 2026-02-04
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:34, non-stop
Airbus A319 (319)
Direct Flights:
United Airlines UA331
09:43
Denver (DEN)

15:38
Boston Logan (BOS) B
Effective 2026-02-14 through 2026-02-21
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:55, non-stop
Airbus A321neo (32Q)
Direct Flights:
United Airlines UA331
09:51
Denver (DEN)

15:44
Boston Logan (BOS) B
Effective 2026-02-12 through 2026-03-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 3:53, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
United Airlines UA331
09:51
Denver (DEN)

15:44
Boston Logan (BOS) B
Operates only on 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:53, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
United Airlines UA331
10:05
Denver (DEN)

12:44
Omaha (OMA)
Effective 2026-01-06 through 2026-02-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:39, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA331
10:05
Denver (DEN)

12:44
Omaha (OMA)
Effective 2026-02-05 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:39, non-stop
Airbus A320 (320)
Direct Flights:
United Airlines UA331
10:13
Denver (DEN)

16:02
Hartford (BDL)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 3:49, non-stop
Boeing 737-800 (738)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:45
Washington Dulles (IAD)
Effective 2026-03-29 through 2026-05-20
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
Duration: 8:45, non-stop
Boeing 767-300 (763)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:55
Washington Dulles (IAD)
Effective 2026-05-22 through 2026-08-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:55, non-stop
Boeing 767-300 (763)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:55
Washington Dulles (IAD)
Effective 2026-08-02 through 2026-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:55, non-stop
Boeing 767-400 (764)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:50
Washington Dulles (IAD)
Operates only on 2026-09-08
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 8:50, non-stop
Boeing 767-400 (764)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:50
Washington Dulles (IAD)
Effective 2026-09-09 through 2026-09-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:50, non-stop
Boeing 767-300 (763)
Direct Flights:
United Airlines UA331
17:00
Paris Charles de Gaulle (CDG) 1

19:55
Washington Dulles (IAD)
Effective 2026-09-25 through 2026-10-24
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 8:55, non-stop
Boeing 767-300 (763)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Boston Logan (BOS)
  • Denver (DEN) - Hartford (BDL)
  • Denver (DEN) - Omaha (OMA)
  • Detroit (DTW) - San Francisco (SFO)
  • Paris Charles de Gaulle (CDG) - Washington Dulles (IAD)
  • Spokane (GEG) - Denver (DEN)
All United Airlines flights
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