Southwest Airlines flights from Saint Louis (STL) to Boston Logan (BOS).
| FLIGHT SCHEDULE |
|---|
| Direct Flights: |
| Sat
13:45
Saint Louis (STL) 2
17:20
Boston Logan (BOS) B Southwest Airlines WN 4438 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-04-11 through 2026-05-30 |
| Mon,Thu,Fri
14:30
Saint Louis (STL) 2
18:05
Boston Logan (BOS) B Southwest Airlines WN 4438 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-04-09 through 2026-06-01 |
| Sun
14:50
Saint Louis (STL) 2
18:25
Boston Logan (BOS) B Southwest Airlines WN 4438 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-04-12 through 2026-05-17 |
| Sun
14:50
Saint Louis (STL) 2
18:25
Boston Logan (BOS) B Southwest Airlines WN 4438 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-31 |
| Sun
18:00
Saint Louis (STL) 2
21:30
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Operates only on 2026-05-24 |
| Tue,Wed
18:50
Saint Louis (STL) 2
22:20
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-04-07 through 2026-06-03 |
| Sat
18:55
Saint Louis (STL) 2
22:25
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-04-11 through 2026-05-30 |
| Mon,Thu,Fri
19:40
Saint Louis (STL) 2
23:10
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-04-09 through 2026-06-01 |
| Sun
19:55
Saint Louis (STL) 2
23:25
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-04-12 through 2026-05-17 |
| Sun
19:55
Saint Louis (STL) 2
23:25
Boston Logan (BOS) B Southwest Airlines WN 4439 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Operates only on 2026-05-31 |
| Sun
12:55
Saint Louis (STL) 2
16:30
Boston Logan (BOS) B Southwest Airlines WN 4578 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-24 |
| Mon,Thu,Fri
19:55
Saint Louis (STL) 2
23:25
Boston Logan (BOS) B Southwest Airlines WN 4724 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-06-04 through 2026-08-03 |
| Sat
20:45
Saint Louis (STL) 2
00:15
Boston Logan (BOS) B Southwest Airlines WN 4724 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-06-06 through 2026-08-01 The flight arrives 1 day after departure. |
| Mon-Fri
17:55
Saint Louis (STL) 2
21:25
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-06 through 2026-01-14 |
| Tue-Fri,Sun
17:55
Saint Louis (STL) 2
21:25
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-18 through 2026-01-23 |
| Mon-Fri
17:55
Saint Louis (STL) 2
21:25
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-26 through 2026-02-04 |
| Tue,Wed,Sun
17:55
Saint Louis (STL) 2
21:25
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-08 through 2026-02-11 |
| Tue,Wed
17:55
Saint Louis (STL) 2
21:25
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-18 through 2026-03-04 |
| Thu,Fri,Sun
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-11 through 2026-01-16 |
| Mon,Sun
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-01-19 through 2026-01-25 |
| Fri,Sun
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-01 through 2026-02-06 |
| Mon,Sun
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-09 through 2026-02-15 |
| Mon,Tue,Thu
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-17 through 2026-02-23 |
| Mon
18:40
Saint Louis (STL) 2
22:10
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Operates only on 2026-03-02 |
| Thu
18:45
Saint Louis (STL) 2
22:15
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Operates only on 2026-02-05 |
| Sat
18:45
Saint Louis (STL) 2
22:15
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-02-14 through 2026-02-28 |
| Mon,Thu,Fri
20:20
Saint Louis (STL) 2
23:50
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-12 through 2026-02-16 |
| Thu,Fri,Sun
20:20
Saint Louis (STL) 2
23:50
Boston Logan (BOS) B Southwest Airlines WN 4998 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-02-20 through 2026-03-01 |
| Tue
10:25
Saint Louis (STL) 2
14:00
Boston Logan (BOS) B Southwest Airlines WN 5109 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-08-04 through 2026-09-29 |
| Wed
10:25
Saint Louis (STL) 2
14:00
Boston Logan (BOS) B Southwest Airlines WN 5117 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-08-05 through 2026-09-30 |
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- A domestic route departing from the Saint Louis airport (STL) and arriving at Boston Logan airport (BOS).
- The flight distance is 1043 miles, or 1679 km.
- The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-5 . 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 2:25 and 2:35.
