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

Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
Sat 06:30 Ontario, Los Angeles (ONT) 09:55 Denver (DEN)
Frontier Airlines F9 1260 Non-stop Airbus A320neo (32N) 2:25 Effective 2024-09-07 through 2024-10-05
Sat 06:30 Ontario, Los Angeles (ONT) 09:52 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A320neo (32N) 2:22 Effective 2024-10-12 through 2024-10-26
Sat 07:30 Ontario, Los Angeles (ONT) 11:01 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:31 Effective 2024-11-02 through 2025-01-11
Sat 07:30 Ontario, Los Angeles (ONT) 11:01 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:31 Effective 2025-02-15 through 2025-04-19
Wed 10:43 Ontario, Los Angeles (ONT) 14:06 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321neo (32Q) 2:23 Effective 2024-10-09 through 2024-10-23
Tue 11:06 Ontario, Los Angeles (ONT) 14:32 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:26 Effective 2024-09-10 through 2024-10-01
Tue 11:08 Ontario, Los Angeles (ONT) 14:32 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321neo (32Q) 2:24 Effective 2024-10-08 through 2024-10-22
Wed-Fri,Sun 13:00 Ontario, Los Angeles (ONT) 16:31 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A320neo (32N) 2:31 Effective 2025-01-12 through 2025-02-12
Mon,Tue,Sat 13:00 Ontario, Los Angeles (ONT) 16:31 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:31 Effective 2025-01-13 through 2025-02-11
Thu,Sun 13:10 Ontario, Los Angeles (ONT) 16:40 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A320neo (32N) 2:30 Effective 2024-10-27 through 2025-01-09
Thu,Sun 13:10 Ontario, Los Angeles (ONT) 16:40 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A320neo (32N) 2:30 Effective 2025-02-13 through 2025-04-20
Tue 13:32 Ontario, Los Angeles (ONT) 17:02 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:30 Effective 2024-10-29 through 2025-01-07
Tue 13:32 Ontario, Los Angeles (ONT) 17:02 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:30 Effective 2025-02-18 through 2025-04-15
Wed 15:21 Ontario, Los Angeles (ONT) 18:41 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:20 Effective 2024-09-11 through 2024-10-02
Thu,Sun 18:06 Ontario, Los Angeles (ONT) 21:31 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321neo (32Q) 2:25 Effective 2024-09-05 through 2024-10-06
Thu,Sun 18:10 Ontario, Los Angeles (ONT) 21:32 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321neo (32Q) 2:22 Effective 2024-10-10 through 2024-10-24
Tue 18:31 Ontario, Los Angeles (ONT) 21:56 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:25 Valid until 2024-09-03
Sat 18:31 Ontario, Los Angeles (ONT) 21:56 Denver (DEN)
Frontier Airlines F9 1262 Non-stop Airbus A321 (321) 2:25 Effective 2024-09-07 through 2024-10-05
Tue,Thu 00:49 Ontario, Los Angeles (ONT) 04:09 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321neo (32Q) 2:20 Valid until 2024-09-03
Daily 00:49 Ontario, Los Angeles (ONT) 04:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Effective 2024-10-27 through 2024-11-02
Sun 00:49 Ontario, Los Angeles (ONT) 03:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Operates only on 2024-11-03
Daily 00:49 Ontario, Los Angeles (ONT) 04:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Effective 2024-11-04 through 2025-01-13
Mon,Thu,Fri,Sun 00:49 Ontario, Los Angeles (ONT) 04:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Effective 2025-01-16 through 2025-02-14
Daily 00:49 Ontario, Los Angeles (ONT) 04:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Effective 2025-02-15 through 2025-03-08
Sun 00:49 Ontario, Los Angeles (ONT) 05:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Operates only on 2025-03-09
Daily 00:49 Ontario, Los Angeles (ONT) 04:10 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:21 Effective 2025-03-10 through 2025-04-21
Mon,Wed,Fri 00:59 Ontario, Los Angeles (ONT) 04:19 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:20 Valid until 2024-09-04
Sun 00:59 Ontario, Los Angeles (ONT) 04:19 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A320neo (32N) 2:20 Valid until 2024-09-01
Mon,Fri 05:45 Ontario, Los Angeles (ONT) 09:04 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:19 Effective 2024-09-06 through 2024-10-25
Tue,Thu 06:30 Ontario, Los Angeles (ONT) 09:55 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A320neo (32N) 2:25 Effective 2024-09-05 through 2024-09-10
Thu,Sun 06:30 Ontario, Los Angeles (ONT) 09:55 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321 (321) 2:25 Effective 2024-09-08 through 2024-10-06
Wed 06:30 Ontario, Los Angeles (ONT) 09:55 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321neo (32Q) 2:25 Effective 2024-09-11 through 2024-10-02
Tue 06:30 Ontario, Los Angeles (ONT) 09:55 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A320 (320) 2:25 Effective 2024-09-17 through 2024-10-01
Tue,Sun 06:30 Ontario, Los Angeles (ONT) 09:52 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A320 (320) 2:22 Effective 2024-10-08 through 2024-10-22
Wed,Thu 06:30 Ontario, Los Angeles (ONT) 09:52 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321neo (32Q) 2:22 Effective 2024-10-09 through 2024-10-24
Sat 18:31 Ontario, Los Angeles (ONT) 21:53 Denver (DEN)
Frontier Airlines F9 1500 Non-stop Airbus A321neo (32Q) 2:22 Effective 2024-10-12 through 2024-10-26
Mon 17:39 Ontario, Los Angeles (ONT) 21:03 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321 (321) 2:24 Effective 2024-10-28 through 2025-01-06
Mon 17:39 Ontario, Los Angeles (ONT) 21:03 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321 (321) 2:24 Effective 2025-02-17 through 2025-04-21
Mon 18:00 Ontario, Los Angeles (ONT) 21:25 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321neo (32Q) 2:25 Effective 2024-09-09 through 2024-10-07
Mon 18:00 Ontario, Los Angeles (ONT) 21:22 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321neo (32Q) 2:22 Effective 2024-10-14 through 2024-10-21
Fri 18:01 Ontario, Los Angeles (ONT) 21:26 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321neo (32Q) 2:25 Effective 2024-09-06 through 2024-10-04
Fri 18:07 Ontario, Los Angeles (ONT) 21:29 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321neo (32Q) 2:22 Effective 2024-10-11 through 2024-10-25
Mon,Wed 18:31 Ontario, Los Angeles (ONT) 21:56 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A321 (321) 2:25 Valid until 2024-09-04
Sun 18:37 Ontario, Los Angeles (ONT) 22:02 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A320neo (32N) 2:25 Operates only on 2024-09-01
Wed,Fri 20:27 Ontario, Los Angeles (ONT) 23:59 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A320neo (32N) 2:32 Effective 2024-10-30 through 2025-01-10
Wed,Fri 20:27 Ontario, Los Angeles (ONT) 23:59 Denver (DEN)
Frontier Airlines F9 2908 Non-stop Airbus A320neo (32N) 2:32 Effective 2025-02-14 through 2025-04-18


Frontier Airlines flights from Ontario, Los Angeles (ONT) to Denver (DEN).
Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:

Effective 2024-09-07 through 2024-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Airbus A320neo (32N)

Effective 2024-10-12 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:22, non-stop
Airbus A320neo (32N)

Effective 2024-11-02 through 2025-01-11
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:31, non-stop
Airbus A321 (321)

Effective 2025-02-15 through 2025-04-19
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:31, non-stop
Airbus A321 (321)

Effective 2024-10-09 through 2024-10-23
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:23, non-stop
Airbus A321neo (32Q)

Effective 2024-09-10 through 2024-10-01
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:26, non-stop
Airbus A321 (321)

Effective 2024-10-08 through 2024-10-22
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:24, non-stop
Airbus A321neo (32Q)

Effective 2025-01-12 through 2025-02-12
Mon
-
Tue
-
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:31, non-stop
Airbus A320neo (32N)

Effective 2025-01-13 through 2025-02-11
Mon
Tue
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:31, non-stop
Airbus A321 (321)

Effective 2024-10-27 through 2025-01-09
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Airbus A320neo (32N)

Effective 2025-02-13 through 2025-04-20
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Airbus A320neo (32N)

Effective 2024-10-29 through 2025-01-07
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Airbus A321 (321)

Effective 2025-02-18 through 2025-04-15
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Airbus A321 (321)

Effective 2024-09-11 through 2024-10-02
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Airbus A321 (321)

Effective 2024-09-05 through 2024-10-06
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Airbus A321neo (32Q)

Effective 2024-10-10 through 2024-10-24
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:22, non-stop
Airbus A321neo (32Q)

Valid until 2024-09-03
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A321 (321)

Effective 2024-09-07 through 2024-10-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Airbus A321 (321)

Valid until 2024-09-03
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Airbus A321neo (32Q)

Effective 2024-10-27 through 2024-11-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Operates only on 2024-11-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Effective 2024-11-04 through 2025-01-13
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Effective 2025-01-16 through 2025-02-14
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Effective 2025-02-15 through 2025-03-08
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Operates only on 2025-03-09
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Effective 2025-03-10 through 2025-04-21
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:21, non-stop
Airbus A321 (321)

Valid until 2024-09-04
Mon
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Airbus A321 (321)

Valid until 2024-09-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Airbus A320neo (32N)

Effective 2024-09-06 through 2024-10-25
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:19, non-stop
Airbus A321 (321)

Effective 2024-09-05 through 2024-09-10
Mon
-
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A320neo (32N)

Effective 2024-09-08 through 2024-10-06
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Airbus A321 (321)

Effective 2024-09-11 through 2024-10-02
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A321neo (32Q)

Effective 2024-09-17 through 2024-10-01
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A320 (320)

Effective 2024-10-08 through 2024-10-22
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:22, non-stop
Airbus A320 (320)

Effective 2024-10-09 through 2024-10-24
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:22, non-stop
Airbus A321neo (32Q)

Effective 2024-10-12 through 2024-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:22, non-stop
Airbus A321neo (32Q)

Effective 2024-10-28 through 2025-01-06
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:24, non-stop
Airbus A321 (321)

Effective 2025-02-17 through 2025-04-21
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:24, non-stop
Airbus A321 (321)

Effective 2024-09-09 through 2024-10-07
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A321neo (32Q)

Effective 2024-10-14 through 2024-10-21
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:22, non-stop
Airbus A321neo (32Q)

Effective 2024-09-06 through 2024-10-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A321neo (32Q)

Effective 2024-10-11 through 2024-10-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:22, non-stop
Airbus A321neo (32Q)

Valid until 2024-09-04
Mon
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Airbus A321 (321)

Operates only on 2024-09-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Airbus A320neo (32N)

Effective 2024-10-30 through 2025-01-10
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:32, non-stop
Airbus A320neo (32N)

Effective 2025-02-14 through 2025-04-18
Mon
-
Tue
-
Wed
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:32, non-stop
Airbus A320neo (32N)
  • 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 8:19pm, and 9:19pm at the point of arrival. There is a 1 hour time difference between the airports.
  • For direct flights, the flight time varies between 2:19 and 2:32.