All airlines flying from Saint Louis (STL) to Denver (DEN).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Tue,Wed
06:00
Saint Louis (STL) 2
07:15
Denver (DEN) Southwest Airlines WN 3909 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-09 through 2026-07-29 |
| Mon,Thu,Fri
08:10
Saint Louis (STL) 2
09:30
Denver (DEN) Southwest Airlines WN 3910 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-04 through 2026-08-03 |
| Tue,Wed,Sun
08:25
Saint Louis (STL) 2
09:45
Denver (DEN) Southwest Airlines WN 3910 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-07 through 2026-08-02 |
| Sun
15:45
Saint Louis (STL) 2
17:05
Denver (DEN) Southwest Airlines WN 3912 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-07 through 2026-08-02 |
| Mon,Thu,Fri
16:00
Saint Louis (STL) 2
17:20
Denver (DEN) Southwest Airlines WN 3912 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-04 through 2026-08-03 |
| Tue,Wed
16:00
Saint Louis (STL) 2
17:20
Denver (DEN) Southwest Airlines WN 3912 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-09 through 2026-07-29 |
| Sat
16:45
Saint Louis (STL) 2
18:05
Denver (DEN) Southwest Airlines WN 3912 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-06-06 through 2026-08-01 |
| Sun
17:30
Saint Louis (STL) 2
18:50
Denver (DEN) Southwest Airlines WN 3913 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-07 through 2026-08-02 |
| Mon,Thu,Fri
18:40
Saint Louis (STL) 2
20:00
Denver (DEN) Southwest Airlines WN 3913 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-04 through 2026-08-03 |
| Tue,Wed
18:40
Saint Louis (STL) 2
20:00
Denver (DEN) Southwest Airlines WN 3913 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-09 through 2026-07-29 |
| Tue,Wed
21:15
Saint Louis (STL) 2
22:35
Denver (DEN) Southwest Airlines WN 3914 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-06-09 through 2026-07-29 |
| Mon,Thu,Fri
22:35
Saint Louis (STL) 2
23:55
Denver (DEN) Southwest Airlines WN 3914 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-04 through 2026-08-03 |
| Sun
09:40
Saint Louis (STL) 2
10:55
Denver (DEN) Southwest Airlines WN 4079 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-06-07 through 2026-08-02 |
| Mon,Tue,Fri,Sun
18:45
Saint Louis (STL) 2
20:05
Denver (DEN) Southwest Airlines WN 4127 Non-stop Boeing 737-800 (73H) 2:20 Valid until 2026-01-04 |
| Sat
20:55
Saint Louis (STL) 2
22:15
Denver (DEN) Southwest Airlines WN 4176 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-06-06 through 2026-08-01 |
| Sun
21:45
Saint Louis (STL) 2
23:05
Denver (DEN) Southwest Airlines WN 4243 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-07 through 2026-08-02 |
| Tue,Wed
11:20
Saint Louis (STL) 2
12:30
Denver (DEN) Southwest Airlines WN 4312 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-09 through 2026-07-29 |
| Mon,Thu,Fri
11:30
Saint Louis (STL) 2
12:40
Denver (DEN) Southwest Airlines WN 4312 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-06-04 through 2026-08-03 |
| Sun
12:50
Saint Louis (STL) 2
14:05
Denver (DEN) Southwest Airlines WN 4312 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-07 through 2026-08-02 |
| Sat,Sun
06:15
Saint Louis (STL) 2
07:35
Denver (DEN) Southwest Airlines WN 4454 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-11 through 2026-05-23 |
| Sat,Sun
06:15
Saint Louis (STL) 2
07:35
Denver (DEN) Southwest Airlines WN 4454 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-05-30 through 2026-05-31 |
| Mon,Thu,Fri
06:20
Saint Louis (STL) 2
07:40
Denver (DEN) Southwest Airlines WN 4454 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-09 through 2026-06-01 |
| Tue,Wed
06:35
Saint Louis (STL) 2
07:55
Denver (DEN) Southwest Airlines WN 4454 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-07 through 2026-06-03 |
| Mon,Thu,Fri
18:45
Saint Louis (STL) 2
20:05
Denver (DEN) Southwest Airlines WN 4459 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-09 through 2026-06-01 |
| Sun
18:50
Saint Louis (STL) 2
20:10
Denver (DEN) Southwest Airlines WN 4459 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-04-12 through 2026-05-17 |
| Sun
18:50
Saint Louis (STL) 2
20:10
Denver (DEN) Southwest Airlines WN 4459 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-05-31 |
| Sun
20:15
Saint Louis (STL) 2
21:35
Denver (DEN) Southwest Airlines WN 4459 Non-stop Boeing 737-800 (73H) 2:20 Operates only on 2026-05-24 |
| Tue,Wed
20:45
Saint Louis (STL) 2
22:05
Denver (DEN) Southwest Airlines WN 4460 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-07 through 2026-06-03 |
| Mon,Thu,Fri
21:40
Saint Louis (STL) 2
23:00
Denver (DEN) Southwest Airlines WN 4460 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-09 through 2026-06-01 |
| Sun
21:55
Saint Louis (STL) 2
23:15
Denver (DEN) Southwest Airlines WN 4460 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-12 through 2026-05-17 |
| Sun
21:55
Saint Louis (STL) 2
23:15
Denver (DEN) Southwest Airlines WN 4460 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2026-05-31 |
| Wed
16:51
Saint Louis (STL) 1
18:25
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A320neo (32N) 2:34 Effective 2026-02-11 through 2026-03-04 |
| Fri
19:27
Saint Louis (STL) 1
20:59
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A321neo (32Q) 2:32 Operates only on 2026-01-16 |
| Mon
19:36
Saint Louis (STL) 1
21:08
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A320neo (32N) 2:32 Operates only on 2026-01-19 |
| Fri
19:39
Saint Louis (STL) 1
21:11
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A321neo (32Q) 2:32 Effective 2026-01-23 through 2026-02-06 |
| Fri
19:43
Saint Louis (STL) 1
21:15
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A320neo (32N) 2:32 Valid until 2026-01-02 |
| Mon,Wed,Sat
19:43
Saint Louis (STL) 1
21:15
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A321neo (32Q) 2:32 Valid until 2026-01-05 |
| Mon,Wed,Fri,Sat
19:43
Saint Louis (STL) 1
21:15
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A320neo (32N) 2:32 Effective 2026-01-07 through 2026-01-12 |
| Mon,Thu,Fri,Sun
19:43
Saint Louis (STL) 1
21:15
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A321neo (32Q) 2:32 Effective 2026-04-02 through 2026-04-13 |
| Mon,Wed,Fri,Sat
20:12
Saint Louis (STL) 1
21:49
Denver (DEN) Frontier Airlines F9 4567 Non-stop Airbus A321neo (32Q) 2:37 Effective 2026-03-06 through 2026-03-30 |
| Mon-Fri
14:35
Saint Louis (STL) 2
16:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
14:35
Saint Louis (STL) 2
16:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-18 through 2026-01-23 |
| Mon-Fri
14:35
Saint Louis (STL) 2
16:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-26 through 2026-02-04 |
| Tue,Wed,Sun
14:35
Saint Louis (STL) 2
16:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-08 through 2026-02-11 |
| Tue,Wed
14:35
Saint Louis (STL) 2
16:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-18 through 2026-03-04 |
| Mon,Thu,Fri
16:35
Saint Louis (STL) 2
18:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-12 through 2026-02-16 |
| Thu,Fri,Sun
16:35
Saint Louis (STL) 2
18:00
Denver (DEN) Southwest Airlines WN 4616 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-20 through 2026-03-01 |
| Sat
18:05
Saint Louis (STL) 2
19:30
Denver (DEN) Southwest Airlines WN 4838 Non-stop Boeing 737-800 (73H) 2:25 Effective 2026-01-10 through 2026-02-07 |
| Thu,Fri,Sun
18:35
Saint Louis (STL) 2
20:00
Denver (DEN) Southwest Airlines WN 4838 Non-stop Boeing 737-800 (73H) 2:25 Effective 2026-01-11 through 2026-01-16 |
| Mon,Sun
18:35
Saint Louis (STL) 2
20:00
Denver (DEN) Southwest Airlines WN 4838 Non-stop Boeing 737-800 (73H) 2:25 Effective 2026-01-19 through 2026-01-25 |
- A domestic route departing from the Saint Louis airport (STL) and arriving at Denver airport (DEN).
- The flight distance is 767 miles, or 1235 km.
- The timezone of the departure airport is UTC-6 , 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 2:40.
