Southwest Airlines flights from Midway, Chicago (MDW) to Saint Louis (STL).

FLIGHT SCHEDULE
Direct Flights:
Sun 06:50 Midway, Chicago (MDW) 08:05 Saint Louis (STL) 2 Southwest Airlines WN 3906 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 07:40 Midway, Chicago (MDW) 08:50 Saint Louis (STL) 2 Southwest Airlines WN 3906 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2025-10-02 through 2025-10-31
Tue,Wed 05:20 Midway, Chicago (MDW) 06:30 Saint Louis (STL) 2 Southwest Airlines WN 3936 Non-stop Boeing 737-700 (73W) 1:10 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri 05:25 Midway, Chicago (MDW) 06:35 Saint Louis (STL) 2 Southwest Airlines WN 3936 Non-stop Boeing 737-800 (73H) 1:10 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 05:25 Midway, Chicago (MDW) 06:35 Saint Louis (STL) 2 Southwest Airlines WN 3936 Non-stop Boeing 737-800 (73H) 1:10 Effective 2025-07-07 through 2025-08-04
Fri 09:50 Midway, Chicago (MDW) 11:05 Saint Louis (STL) 2 Southwest Airlines WN 3936 Non-stop Boeing 737-700 (73W) 1:15 Operates only on 2025-07-04
Sun 14:10 Midway, Chicago (MDW) 15:20 Saint Louis (STL) 2 Southwest Airlines WN 3936 Non-stop Boeing 737-700 (73W) 1:10 Operates only on 2025-08-31
Sun 05:20 Midway, Chicago (MDW) 06:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2025-11-30
Tue,Wed 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-04 through 2025-11-12
Sat 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-08 through 2025-11-15
Mon-Thu 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-17 through 2025-11-20
Mon-Fri 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-02 through 2025-12-11
Sat 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-06 through 2025-12-13
Mon-Wed 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-15 through 2025-12-17
Wed,Thu 06:20 Midway, Chicago (MDW) 07:35 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-24 through 2026-01-01
Mon,Thu,Fri,Sun 06:45 Midway, Chicago (MDW) 08:00 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 06:45 Midway, Chicago (MDW) 08:00 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-21 through 2025-11-28
Fri,Sun 06:45 Midway, Chicago (MDW) 08:00 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-07 through 2025-12-14
Thu 06:45 Midway, Chicago (MDW) 08:00 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Operates only on 2025-12-18
Mon 06:45 Midway, Chicago (MDW) 08:00 Saint Louis (STL) 2 Southwest Airlines WN 4089 Non-stop Boeing 737-800 (73H) 1:15 Operates only on 2026-01-05
Tue,Wed 12:40 Midway, Chicago (MDW) 13:50 Saint Louis (STL) 2 Southwest Airlines WN 4191 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-10-07 through 2025-10-29
Sun 13:15 Midway, Chicago (MDW) 14:30 Saint Louis (STL) 2 Southwest Airlines WN 4198 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2025-11-30
Tue,Wed 09:10 Midway, Chicago (MDW) 10:20 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-800 (73H) 1:10 Valid until 2025-06-04
Sat 20:35 Midway, Chicago (MDW) 21:50 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-700 (73W) 1:15 Valid until 2025-05-31
Mon,Thu,Fri 20:45 Midway, Chicago (MDW) 22:00 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-800 (73H) 1:15 Valid until 2025-06-02
Sun 21:00 Midway, Chicago (MDW) 22:15 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-700 (73W) 1:15 Operates only on 2025-05-25
Sun 22:50 Midway, Chicago (MDW) 00:05 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-700 (73W) 1:15 Valid until 2025-05-18 The flight arrives 1 day after departure.
Sun 22:50 Midway, Chicago (MDW) 00:05 Saint Louis (STL) 2 Southwest Airlines WN 4242 Non-stop Boeing 737-700 (73W) 1:15 Operates only on 2025-06-01 The flight arrives 1 day after departure.
Sat 20:15 Midway, Chicago (MDW) 21:30 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-11-22 through 2025-11-29
Sat 20:15 Midway, Chicago (MDW) 21:30 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2025-12-20 through 2026-01-03
Mon,Thu,Fri,Sun 21:40 Midway, Chicago (MDW) 22:55 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 21:40 Midway, Chicago (MDW) 22:55 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-11-21 through 2025-11-28
Fri,Sun 21:40 Midway, Chicago (MDW) 22:55 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2025-12-07 through 2025-12-14
Thu 21:40 Midway, Chicago (MDW) 22:55 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2025-12-18
Mon 21:40 Midway, Chicago (MDW) 22:55 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2026-01-05
Mon-Wed 22:50 Midway, Chicago (MDW) 00:05 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-25 through 2025-12-01 The flight arrives 1 day after departure.
Mon,Tue,Fri,Sun 22:50 Midway, Chicago (MDW) 00:05 Saint Louis (STL) 2 Southwest Airlines WN 4503 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-19 through 2026-01-04 The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri 07:45 Midway, Chicago (MDW) 19:25 Saint Louis (STL) 2 Southwest Airlines WN 1919 3-stop Boeing 737-700 (Scimitar Winglets) 11:40 Effective 2025-10-02 through 2025-10-31

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A domestic route departing from the Midway, Chicago airport (MDW) and arriving at Saint Louis airport (STL).
The flight distance is 251 miles, or 404 km.
The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:10 and 1:25.

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Southwest Airlines flights from Midway, Chicago (MDW) to Saint Louis (STL).

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3906

06:50

Midway, Chicago (MDW)

08:05

Saint Louis (STL) 2

Effective 2025-10-05 through 2025-10-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3906

07:40

Midway, Chicago (MDW)

08:50

Saint Louis (STL) 2

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3936

05:20

Midway, Chicago (MDW)

06:30

Saint Louis (STL) 2

Effective 2025-06-10 through 2025-07-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3936

05:25

Midway, Chicago (MDW)

06:35

Saint Louis (STL) 2

Effective 2025-06-05 through 2025-07-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3936

05:25

Midway, Chicago (MDW)

06:35

Saint Louis (STL) 2

Effective 2025-07-07 through 2025-08-04

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3936

09:50

Midway, Chicago (MDW)

11:05

Saint Louis (STL) 2

Operates only on 2025-07-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3936

14:10

Midway, Chicago (MDW)

15:20

Saint Louis (STL) 2

Operates only on 2025-08-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN4089

05:20

Midway, Chicago (MDW)

06:35

Saint Louis (STL) 2

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-11-08 through 2025-11-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-12-06 through 2025-12-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:20

Midway, Chicago (MDW)

07:35

Saint Louis (STL) 2

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:45

Midway, Chicago (MDW)

08:00

Saint Louis (STL) 2

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:45

Midway, Chicago (MDW)

08:00

Saint Louis (STL) 2

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:45

Midway, Chicago (MDW)

08:00

Saint Louis (STL) 2

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:45

Midway, Chicago (MDW)

08:00

Saint Louis (STL) 2

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4089

06:45

Midway, Chicago (MDW)

08:00

Saint Louis (STL) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4191

12:40

Midway, Chicago (MDW)

13:50

Saint Louis (STL) 2

Effective 2025-10-07 through 2025-10-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4198

13:15

Midway, Chicago (MDW)

14:30

Saint Louis (STL) 2

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4242

09:10

Midway, Chicago (MDW)

10:20

Saint Louis (STL) 2

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4242

20:35

Midway, Chicago (MDW)

21:50

Saint Louis (STL) 2

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN4242

20:45

Midway, Chicago (MDW)

22:00

Saint Louis (STL) 2

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4242

21:00

Midway, Chicago (MDW)

22:15

Saint Louis (STL) 2

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN4242

22:50

Midway, Chicago (MDW)

00:05(+1)

Saint Louis (STL) 2

Valid until 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (73W)
The flight arrives 1 day after departure.

Southwest Airlines WN4242

22:50

Midway, Chicago (MDW)

00:05(+1)

Saint Louis (STL) 2

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (73W)
The flight arrives 1 day after departure.

Southwest Airlines WN4503

20:15

Midway, Chicago (MDW)

21:30

Saint Louis (STL) 2

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4503

20:15

Midway, Chicago (MDW)

21:30

Saint Louis (STL) 2

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4503

21:40

Midway, Chicago (MDW)

22:55

Saint Louis (STL) 2

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4503

21:40

Midway, Chicago (MDW)

22:55

Saint Louis (STL) 2

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4503

21:40

Midway, Chicago (MDW)

22:55

Saint Louis (STL) 2

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4503

21:40

Midway, Chicago (MDW)

22:55

Saint Louis (STL) 2

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4503

21:40

Midway, Chicago (MDW)

22:55

Saint Louis (STL) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN4503

22:50

Midway, Chicago (MDW)

00:05(+1)

Saint Louis (STL) 2

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Southwest Airlines WN4503

22:50

Midway, Chicago (MDW)

00:05(+1)

Saint Louis (STL) 2

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN1919

07:45

Midway, Chicago (MDW)

19:25

Saint Louis (STL) 2

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 11:40, 3-stop
Boeing 737-700 (Scimitar Winglets)

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A domestic route departing from the Midway, Chicago airport (MDW) and arriving at Saint Louis airport (STL).
The flight distance is 251 miles, or 404 km.
The timezone of both the departure and the arrival airports is UTC-6 . Current time at both airports is (loading...).
For direct flights, the flight time varies between 1:10 and 1:25.

All MDW-STL flights

All Southwest Airlines flights

Return (STL-MDW) flights

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