Southwest Airlines
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Baltimore/Washington International Thurgood Marshall Ai
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United States
Lambert-Saint Louis International Airport
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Scan through all non-stop flights from Baltimore-Washington to St. Louis. The full flight schedule below gives an overview of all non-stop flights from BWI to STL, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
St. Louis is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit St. Louis any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from Baltimore-Washington BWI to St. Louis STL, which is Southwest Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their BWI STL flight schedule.
Flights from BWI to STL are operated 24 times a week, with an average of 3 flights per day. Departure times vary between 06:05 - 22:45. The earliest flight departs at 06:05, the last flight departs at 22:45. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Baltimore-Washington to St. Louis takes 2 hours and 10 minutes. The flight distance between Baltimore-Washington and St. Louis is 735 miles (or 1,183 km).
There is 1 airport in St. Louis: Lambert-Saint Louis International Airport (STL).
There are 24 flights per week flying from Baltimore-Washington to St. Louis (as of April 2026).
2 hours and 10 minutes is the average flight time from Baltimore-Washington to St. Louis.
The distance from Baltimore-Washington to St. Louis is 735 miles (1,183 kilometers).
Southwest Airlines is the only airline flying nonstop from Baltimore-Washington to St. Louis.
There are no alliances flying direct from Baltimore-Washington to St. Louis at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Baltimore-Washington to St. Louis:
The earliest flight departs at 06:05 from Baltimore-Washington and arrives at 07:35 at St. Louis.
The latest flight departs at 22:45 from Baltimore-Washington and arrives at 00:05 at St. Louis.
735 miles (1,183 km) · 2h 10m
06:05
07:35
Southwest Airlines
WN 3191
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
06:10
07:30
Southwest Airlines
WN 1333
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
06:10
07:30
Southwest Airlines
WN 1333
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
06:15
07:45
Southwest Airlines
WN 3191
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
06:20
07:40
Southwest Airlines
WN 1333
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
06:25
07:45
Southwest Airlines
WN 1333
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
08:35
10:00
Southwest Airlines
WN 1565
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
09:20
10:50
Southwest Airlines
WN 1557
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
09:30
10:50
Southwest Airlines
WN 1335
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
09:45
11:05
Southwest Airlines
WN 2496
Southwest Airlines
Boeing 757
Y
W
J
F
10:20
11:45
Southwest Airlines
WN 1557
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
13:55
15:15
Southwest Airlines
WN 1337
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
14:50
16:15
Southwest Airlines
WN 3835
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
15:05
16:25
Southwest Airlines
WN 1333
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
16:25
17:50
Southwest Airlines
WN 3835
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
16:35
18:00
Southwest Airlines
WN 3835
Southwest Airlines
Boeing 757
Y
W
J
F
18:00
19:30
Southwest Airlines
WN 3835
Southwest Airlines
Boeing 757
Y
W
J
F
18:10
19:35
Southwest Airlines
WN 987
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
18:10
19:35
Southwest Airlines
WN 987
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
18:20
19:45
Southwest Airlines
WN 987
Southwest Airlines
Boeing 757
Y
W
J
F
19:40
21:05
Southwest Airlines
WN 987
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
21:40
23:05
Southwest Airlines
WN 1788
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
21:40
23:05
Southwest Airlines
WN 1788
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
21:50
23:15
Southwest Airlines
WN 1337
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
22:00
23:25
Southwest Airlines
WN 1337
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
22:10
23:35
Southwest Airlines
WN 1788
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
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