All airlines flying from Ontario, Los Angeles (ONT) to Denver (DEN).
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| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Tue,Wed,Sat
07:15
Ontario, Los Angeles (ONT)
10:40
Denver (DEN) Frontier Airlines F9 1500 Non-stop Airbus A320neo (32N) 2:25 Effective 2026-01-27 through 2026-02-07 |
| Tue,Wed
07:30
Ontario, Los Angeles (ONT)
10:55
Denver (DEN) Frontier Airlines F9 1500 Non-stop Airbus A320neo (32N) 2:25 Effective 2026-02-10 through 2026-02-11 |
| Tue
07:30
Ontario, Los Angeles (ONT)
10:55
Denver (DEN) Frontier Airlines F9 1500 Non-stop Airbus A321neo (32Q) 2:25 Effective 2026-02-17 through 2026-03-03 |
| Wed
07:30
Ontario, Los Angeles (ONT)
10:55
Denver (DEN) Frontier Airlines F9 1500 Non-stop Airbus A320neo (32N) 2:25 Effective 2026-02-18 through 2026-03-04 |
| Sat
06:20
Ontario, Los Angeles (ONT) 4
09:30
Denver (DEN) Southwest Airlines WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-04-11 through 2026-05-30 |
| Mon,Thu,Fri,Sun
06:25
Ontario, Los Angeles (ONT) 4
09:35
Denver (DEN) Southwest Airlines WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-04-09 through 2026-05-22 |
| Mon,Thu,Fri,Sun
06:25
Ontario, Los Angeles (ONT) 4
09:35
Denver (DEN) Southwest Airlines WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-05-25 through 2026-06-01 |
| Sun
06:40
Ontario, Los Angeles (ONT) 4
09:50
Denver (DEN) Southwest Airlines WN 1666 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2026-05-24 |
| Tue,Wed
10:40
Ontario, Los Angeles (ONT) 4
13:55
Denver (DEN) Southwest Airlines WN 1666 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-04-07 through 2026-06-03 |
| Fri,Sun
16:05
Ontario, Los Angeles (ONT) 4
19:15
Denver (DEN) Southwest Airlines WN 1989 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-01-02 through 2026-01-04 |
| Mon,Thu,Fri
05:20
Ontario, Los Angeles (ONT) 4
08:35
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-02-12 through 2026-02-16 |
| Thu,Fri,Sun
05:20
Ontario, Los Angeles (ONT) 4
08:35
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-02-20 through 2026-03-01 |
| Sat
05:40
Ontario, Los Angeles (ONT) 4
08:55
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-10 through 2026-02-07 |
| Thu,Fri,Sun
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-11 through 2026-01-16 |
| Mon,Sun
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-19 through 2026-01-25 |
| Thu,Fri,Sun
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-01 through 2026-02-06 |
| Mon,Sun
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-09 through 2026-02-15 |
| Mon,Tue,Thu
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-17 through 2026-02-23 |
| Mon
05:50
Ontario, Los Angeles (ONT) 4
09:05
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Operates only on 2026-03-02 |
| Mon-Fri
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-18 through 2026-01-23 |
| Mon-Fri
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-01-26 through 2026-02-04 |
| Sun
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2026-02-08 |
| Tue,Wed
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-02-10 through 2026-02-11 |
| Tue,Wed
06:30
Ontario, Los Angeles (ONT) 4
09:40
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-02-18 through 2026-03-04 |
| Sat
06:55
Ontario, Los Angeles (ONT) 4
10:15
Denver (DEN) Southwest Airlines WN 2220 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-02-14 through 2026-02-28 |
| Daily
18:30
Ontario, Los Angeles (ONT) 2
21:44
Denver (DEN) United Airlines UA 2234 Non-stop Airbus A320 (320) 2:14 Effective 2026-05-21 through 2026-10-24 |
| Wed,Thu
05:45
Ontario, Los Angeles (ONT) 4
09:00
Denver (DEN) Southwest Airlines WN 2310 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Valid until 2026-01-01 |
| Fri,Sun
08:30
Ontario, Los Angeles (ONT) 4
11:40
Denver (DEN) Southwest Airlines WN 2310 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-01-02 through 2026-01-04 |
| Mon
08:30
Ontario, Los Angeles (ONT) 4
11:40
Denver (DEN) Southwest Airlines WN 2310 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Operates only on 2026-01-05 |
| Mon-Fri
08:55
Ontario, Los Angeles (ONT) 4
12:10
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
08:55
Ontario, Los Angeles (ONT) 4
12:10
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-18 through 2026-01-23 |
| Mon-Wed
08:55
Ontario, Los Angeles (ONT) 4
12:10
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-26 through 2026-01-28 |
| Tue,Wed,Sun
08:55
Ontario, Los Angeles (ONT) 4
12:10
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-08 through 2026-02-11 |
| Tue,Wed
08:55
Ontario, Los Angeles (ONT) 4
12:10
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-02-18 through 2026-03-04 |
| Thu,Fri
09:00
Ontario, Los Angeles (ONT) 4
12:15
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-01-29 through 2026-01-30 |
| Mon,Tue
09:05
Ontario, Los Angeles (ONT) 4
12:25
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-02-02 through 2026-02-03 |
| Wed
09:05
Ontario, Los Angeles (ONT) 4
12:25
Denver (DEN) Southwest Airlines WN 2442 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-02-04 |
| Thu
05:00
Ontario, Los Angeles (ONT) 2
08:16
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737 MAX 9 (7M9) 2:16 Operates only on 2026-02-12 |
| Daily
05:00
Ontario, Los Angeles (ONT) 2
08:16
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-800 (738) 2:16 Effective 2026-02-13 through 2026-03-04 |
| Daily
05:00
Ontario, Los Angeles (ONT) 2
08:11
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-800 (738) 2:11 Effective from 2026-05-21 |
| Mon,Thu
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-900 (739) 2:19 Valid until 2026-01-05 |
| Tue,Wed,Fri-Sun
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-800 (738) 2:19 Valid until 2026-01-06 |
| Daily
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-01-07 through 2026-01-17 |
| Sun
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-900 (739) 2:19 Operates only on 2026-01-18 |
| Daily
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-01-19 through 2026-02-03 |
| Daily
05:05
Ontario, Los Angeles (ONT) 2
08:24
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737 MAX 9 (7M9) 2:19 Effective 2026-02-05 through 2026-02-11 |
| Daily
05:05
Ontario, Los Angeles (ONT) 2
08:27
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737-800 (738) 2:22 Effective 2026-04-30 through 2026-05-20 |
| Daily
05:10
Ontario, Los Angeles (ONT) 2
08:32
Denver (DEN) United Airlines UA 2446 Non-stop Boeing 737 MAX 9 (7M9) 2:22 Effective 2026-03-29 through 2026-04-29 |
| Daily
05:15
Ontario, Los Angeles (ONT) 2
08:32
Denver (DEN) United Airlines UA 2446 Non-stop Airbus A319 (319) 2:17 Effective 2026-03-05 through 2026-03-28 |
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Parallax here ONT-DEN
- 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 2:10 and 2:26.
