United Airlines flights from Ontario, Los Angeles (ONT) to Denver (DEN).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 18:20 Ontario, Los Angeles (ONT) 2 21:39 Denver (DEN)
United Airlines UA 396 Non-stop Airbus A319 (319) 2:19 Effective 2024-09-26 through 2024-10-26
Mon,Wed-Fri,Sun 18:25 Ontario, Los Angeles (ONT) 2 21:43 Denver (DEN)
United Airlines UA 396 Non-stop Airbus A320 (320) 2:18 Effective 2024-09-02 through 2024-09-25
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:25 Denver (DEN)
United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-11-01 through 2024-11-30
Mon-Thu,Sun 05:15 Ontario, Los Angeles (ONT) 2 08:35 Denver (DEN)
United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-10-27 through 2024-10-31
Mon,Sun 05:15 Ontario, Los Angeles (ONT) 2 08:35 Denver (DEN)
United Airlines UA 652 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-12-01 through 2024-12-02
Daily 13:40 Ontario, Los Angeles (ONT) 2 17:00 Denver (DEN)
United Airlines UA 745 Non-stop Airbus A319 (319) 2:20 Effective 2024-12-03 through 2024-12-18
Daily 13:42 Ontario, Los Angeles (ONT) 2 17:02 Denver (DEN)
United Airlines UA 745 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-10-27 through 2024-11-27
Mon,Fri-Sun 13:42 Ontario, Los Angeles (ONT) 2 17:02 Denver (DEN)
United Airlines UA 745 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-11-29 through 2024-12-02
Thu,Fri 18:30 Ontario, Los Angeles (ONT) 2 21:49 Denver (DEN)
United Airlines UA 1108 Non-stop Boeing 737-800 (738) 2:19 Effective 2024-12-20 through 2024-12-27
Mon,Wed-Fri,Sun 18:30 Ontario, Los Angeles (ONT) 2 21:49 Denver (DEN)
United Airlines UA 1108 Non-stop Boeing 737-800 (738) 2:19 Effective 2024-12-29 through 2025-01-03
Daily 13:35 Ontario, Los Angeles (ONT) 2 16:53 Denver (DEN)
United Airlines UA 1248 Non-stop Boeing 737-800 (738) 2:18 Valid until 2024-09-07
Sun 13:35 Ontario, Los Angeles (ONT) 2 16:52 Denver (DEN)
United Airlines UA 1248 Non-stop Boeing 737-800 (738) 2:17 Operates only on 2024-09-08
Daily 13:35 Ontario, Los Angeles (ONT) 2 16:53 Denver (DEN)
United Airlines UA 1248 Non-stop Boeing 737-800 (738) 2:18 Effective 2024-09-09 through 2024-09-25
Mon-Thu,Sat,Sun 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737-800 (738) 2:18 Effective 2024-09-26 through 2024-10-03
Fri 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737 MAX 8 (7M8) 2:18 Operates only on 2024-09-27
Daily 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737-800 (738) 2:18 Effective 2024-10-04 through 2024-10-26
Daily 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737-800 (738) 2:18 Effective 2024-12-19 through 2024-12-30
Tue 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737 MAX 9 (7M9) 2:18 Operates only on 2024-12-31
Mon,Wed-Sun 05:15 Ontario, Los Angeles (ONT) 2 08:33 Denver (DEN)
United Airlines UA 1418 Non-stop Boeing 737-800 (738) 2:18 Effective 2025-01-01 through 2025-01-06
Daily 05:10 Ontario, Los Angeles (ONT) 2 08:28 Denver (DEN)
United Airlines UA 1575 Non-stop Boeing 737-900 (739) 2:18 Effective 2025-01-07 through 2025-02-12
Daily 05:45 Ontario, Los Angeles (ONT) 2 08:56 Denver (DEN)
United Airlines UA 1575 Non-stop Boeing 737-800 (738) 2:11 Effective from 2025-02-13
Mon-Sat 13:28 Ontario, Los Angeles (ONT) 2 16:47 Denver (DEN)
United Airlines UA 1775 Non-stop Airbus A319 (319) 2:19 Effective 2024-09-26 through 2024-10-26
Sun 13:28 Ontario, Los Angeles (ONT) 2 16:47 Denver (DEN)
United Airlines UA 1775 Non-stop Airbus A320 (320) 2:19 Effective 2024-09-29 through 2024-10-20
Daily 13:00 Ontario, Los Angeles (ONT) 2 16:14 Denver (DEN)
United Airlines UA 1942 Non-stop Airbus A320 (320) 2:14 Effective from 2025-02-13
Daily 13:42 Ontario, Los Angeles (ONT) 2 17:01 Denver (DEN)
United Airlines UA 1942 Non-stop Boeing 737-800 (738) 2:19 Effective 2024-12-19 through 2025-01-06
Daily 13:42 Ontario, Los Angeles (ONT) 2 17:00 Denver (DEN)
United Airlines UA 1942 Non-stop Boeing 737 MAX 8 (7M8) 2:18 Effective 2025-01-07 through 2025-02-12
Daily 05:15 Ontario, Los Angeles (ONT) 2 08:35 Denver (DEN)
United Airlines UA 2246 Non-stop Boeing 737-800 (738) 2:20 Effective 2024-12-03 through 2024-12-18
Daily 05:05 Ontario, Los Angeles (ONT) 2 08:23 Denver (DEN)
United Airlines UA 2734 Non-stop Boeing 737-800 (738) 2:18 Valid until 2024-09-25




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United Airlines flights from Ontario, Los Angeles (ONT) to Denver (DEN).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
United Airlines UA396
18:20
Ontario, Los Angeles (ONT) 2

21:39
Denver (DEN)
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Airbus A319 (319)
United Airlines UA396
18:25
Ontario, Los Angeles (ONT) 2

21:43
Denver (DEN)
Effective 2024-09-02 through 2024-09-25
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:18, non-stop
Airbus A320 (320)
United Airlines UA652
05:05
Ontario, Los Angeles (ONT) 2

08:25
Denver (DEN)
Effective 2024-11-01 through 2024-11-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA652
05:15
Ontario, Los Angeles (ONT) 2

08:35
Denver (DEN)
Effective 2024-10-27 through 2024-10-31
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA652
05:15
Ontario, Los Angeles (ONT) 2

08:35
Denver (DEN)
Effective 2024-12-01 through 2024-12-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA745
13:40
Ontario, Los Angeles (ONT) 2

17:00
Denver (DEN)
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Airbus A319 (319)
United Airlines UA745
13:42
Ontario, Los Angeles (ONT) 2

17:02
Denver (DEN)
Effective 2024-10-27 through 2024-11-27
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA745
13:42
Ontario, Los Angeles (ONT) 2

17:02
Denver (DEN)
Effective 2024-11-29 through 2024-12-02
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA1108
18:30
Ontario, Los Angeles (ONT) 2

21:49
Denver (DEN)
Effective 2024-12-20 through 2024-12-27
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:19, non-stop
Boeing 737-800 (738)
United Airlines UA1108
18:30
Ontario, Los Angeles (ONT) 2

21:49
Denver (DEN)
Effective 2024-12-29 through 2025-01-03
Mon
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:19, non-stop
Boeing 737-800 (738)
United Airlines UA1248
13:35
Ontario, Los Angeles (ONT) 2

16:53
Denver (DEN)
Valid until 2024-09-07
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1248
13:35
Ontario, Los Angeles (ONT) 2

16:52
Denver (DEN)
Operates only on 2024-09-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:17, non-stop
Boeing 737-800 (738)
United Airlines UA1248
13:35
Ontario, Los Angeles (ONT) 2

16:53
Denver (DEN)
Effective 2024-09-09 through 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Effective 2024-09-26 through 2024-10-03
Mon
Tue
Wed
Thu
Fri
-
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Operates only on 2024-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Effective 2024-10-04 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Effective 2024-12-19 through 2024-12-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Operates only on 2024-12-31
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:18, non-stop
Boeing 737 MAX 9 (7M9)
United Airlines UA1418
05:15
Ontario, Los Angeles (ONT) 2

08:33
Denver (DEN)
Effective 2025-01-01 through 2025-01-06
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
United Airlines UA1575
05:10
Ontario, Los Angeles (ONT) 2

08:28
Denver (DEN)
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-900 (739)
United Airlines UA1575
05:45
Ontario, Los Angeles (ONT) 2

08:56
Denver (DEN)
Effective from 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:11, non-stop
Boeing 737-800 (738)
United Airlines UA1775
13:28
Ontario, Los Angeles (ONT) 2

16:47
Denver (DEN)
Effective 2024-09-26 through 2024-10-26
Mon
Tue
Wed
Thu
Fri
Sat
Sun
-
Duration: 2:19, non-stop
Airbus A319 (319)
United Airlines UA1775
13:28
Ontario, Los Angeles (ONT) 2

16:47
Denver (DEN)
Effective 2024-09-29 through 2024-10-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:19, non-stop
Airbus A320 (320)
United Airlines UA1942
13:00
Ontario, Los Angeles (ONT) 2

16:14
Denver (DEN)
Effective from 2025-02-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:14, non-stop
Airbus A320 (320)
United Airlines UA1942
13:42
Ontario, Los Angeles (ONT) 2

17:01
Denver (DEN)
Effective 2024-12-19 through 2025-01-06
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:19, non-stop
Boeing 737-800 (738)
United Airlines UA1942
13:42
Ontario, Los Angeles (ONT) 2

17:00
Denver (DEN)
Effective 2025-01-07 through 2025-02-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737 MAX 8 (7M8)
United Airlines UA2246
05:15
Ontario, Los Angeles (ONT) 2

08:35
Denver (DEN)
Effective 2024-12-03 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:20, non-stop
Boeing 737-800 (738)
United Airlines UA2734
05:05
Ontario, Los Angeles (ONT) 2

08:23
Denver (DEN)
Valid until 2024-09-25
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:18, non-stop
Boeing 737-800 (738)
  • A domestic route departing from the Ontario, Los Angeles airport (ONT) and arriving at Denver airport (DEN).
  • The flight distance is 817 miles, or 1315 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-7 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.
  • For direct flights, the flight time varies between 2:11 and 2:20.
All ONT-DEN flights
All United Airlines flights
Return (DEN-ONT) flights
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