Southwest Airlines flights from Saint Louis (STL) to Denver (DEN).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 16:15 Saint Louis (STL) 2 17:30 Denver (DEN)
Southwest Airlines WN 187 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-08-04 through 2026-09-30
Sat 17:20 Saint Louis (STL) 2 18:35 Denver (DEN)
Southwest Airlines WN 187 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-08-08 through 2026-09-26
Wed,Thu 08:00 Saint Louis (STL) 2 09:25 Denver (DEN)
Southwest Airlines WN 295 Non-stop Boeing 737-700 (73W) 2:25 Valid until 2026-01-01
Sat 09:45 Saint Louis (STL) 2 11:00 Denver (DEN)
Southwest Airlines WN 296 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-06-06 through 2026-08-01
Sat 17:00 Saint Louis (STL) 2 18:20 Denver (DEN)
Southwest Airlines WN 454 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Valid until 2026-01-03
Mon,Tue,Fri,Sun 17:15 Saint Louis (STL) 2 18:35 Denver (DEN)
Southwest Airlines WN 454 Non-stop Boeing 737-800 (73H) 2:20 Valid until 2026-01-04
Mon 17:15 Saint Louis (STL) 2 18:35 Denver (DEN)
Southwest Airlines WN 454 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-01-05
Sun 06:40 Saint Louis (STL) 2 08:00 Denver (DEN)
Southwest Airlines WN 667 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2026-05-24
Sat 19:15 Saint Louis (STL) 2 20:35 Denver (DEN)
Southwest Airlines WN 802 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Valid until 2026-01-03
Mon,Thu,Fri 13:55 Saint Louis (STL) 2 15:10 Denver (DEN)
Southwest Airlines WN 824 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-06-04 through 2026-08-03
Sun 14:15 Saint Louis (STL) 2 15:30 Denver (DEN)
Southwest Airlines WN 824 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-06-07 through 2026-08-02
Tue,Wed 17:20 Saint Louis (STL) 2 18:40 Denver (DEN)
Southwest Airlines WN 824 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-09 through 2026-07-29
Sat 13:50 Saint Louis (STL) 2 15:05 Denver (DEN)
Southwest Airlines WN 1225 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-06-06 through 2026-08-01
Sat 08:30 Saint Louis (STL) 2 09:50 Denver (DEN)
Southwest Airlines WN 1424 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-01-03
Thu,Fri,Sun 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-01-11 through 2026-01-16
Mon,Sun 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-01 through 2026-02-06
Mon,Sun 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-17 through 2026-02-23
Mon 07:10 Saint Louis (STL) 2 08:40 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Operates only on 2026-03-02
Mon,Thu,Fri 07:20 Saint Louis (STL) 2 08:50 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 07:20 Saint Louis (STL) 2 08:50 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-20 through 2026-03-01
Sat 10:15 Saint Louis (STL) 2 11:45 Denver (DEN)
Southwest Airlines WN 1452 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-02-14 through 2026-02-28
Sun 15:00 Saint Louis (STL) 2 16:25 Denver (DEN)
Southwest Airlines WN 1622 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2026-05-24
Mon 07:40 Saint Louis (STL) 2 09:05 Denver (DEN)
Southwest Airlines WN 1678 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2026-01-05
Mon,Thu,Fri 17:15 Saint Louis (STL) 2 18:35 Denver (DEN)
Southwest Airlines WN 1688 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-04-09 through 2026-06-01
Sun 17:35 Saint Louis (STL) 2 18:55 Denver (DEN)
Southwest Airlines WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-12 through 2026-05-17
Sun 17:35 Saint Louis (STL) 2 18:55 Denver (DEN)
Southwest Airlines WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Operates only on 2026-05-31
Tue,Wed 17:40 Saint Louis (STL) 2 19:00 Denver (DEN)
Southwest Airlines WN 1688 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-07 through 2026-06-03
Sat 17:50 Saint Louis (STL) 2 19:10 Denver (DEN)
Southwest Airlines WN 1688 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 08:20 Saint Louis (STL) 2 09:45 Denver (DEN)
Southwest Airlines WN 1890 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-03-05 through 2026-04-06
Sat 10:25 Saint Louis (STL) 2 11:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-10 through 2026-02-07
Thu,Fri,Sun 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-11 through 2026-01-16
Mon,Sun 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-01 through 2026-02-06
Mon,Sun 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-17 through 2026-02-23
Mon 12:30 Saint Louis (STL) 2 13:55 Denver (DEN)
Southwest Airlines WN 1949 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2026-03-02
Mon,Thu,Fri 10:10 Saint Louis (STL) 2 11:40 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 10:10 Saint Louis (STL) 2 11:40 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-20 through 2026-03-01
Mon-Fri 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-01-18 through 2026-01-23
Mon-Fri 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-01-26 through 2026-02-04
Sun 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Operates only on 2026-02-08
Tue,Wed 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-02-10 through 2026-02-11
Tue,Wed 10:35 Saint Louis (STL) 2 12:10 Denver (DEN)
Southwest Airlines WN 2140 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-02-18 through 2026-03-04
Sat 05:30 Saint Louis (STL) 2 07:05 Denver (DEN)
Southwest Airlines WN 2143 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-01-10 through 2026-02-07
Mon,Thu 05:35 Saint Louis (STL) 2 07:10 Denver (DEN)
Southwest Airlines WN 2143 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-02-12 through 2026-02-16
Fri 05:35 Saint Louis (STL) 2 07:10 Denver (DEN)
Southwest Airlines WN 2143 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-02-13 through 2026-02-20
Thu,Fri,Sun 05:35 Saint Louis (STL) 2 07:10 Denver (DEN)
Southwest Airlines WN 2143 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-02-22 through 2026-03-01
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Southwest Airlines flights from Saint Louis (STL) to Denver (DEN).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Operates only on 2026-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-02-13 through 2026-02-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-02-22 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
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  • 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 2:35.