Southwest Airlines
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United States
Lambert-Saint Louis International Airport
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United States
Baltimore/Washington International Thurgood Marshall Ai
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Scan through all non-stop flights from St. Louis to Baltimore-Washington. The full flight schedule below gives an overview of all non-stop flights from STL to BWI, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Baltimore-Washington 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 Baltimore-Washington 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 St. Louis STL to Baltimore-Washington BWI, 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 STL BWI flight schedule.
Flights from STL to BWI are operated 24 times a week, with an average of 3 flights per day. Departure times vary between 05:00 - 21:35. The earliest flight departs at 05:00, the last flight departs at 21:35. 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 St. Louis to Baltimore-Washington takes 2 hours. The flight distance between St. Louis and Baltimore-Washington is 735 miles (or 1,183 km).
There are 0 airports in Baltimore-Washington: .
There are 24 flights per week flying from St. Louis to Baltimore-Washington (as of April 2026).
2 hours is the average flight time from St. Louis to Baltimore-Washington.
The distance from St. Louis to Baltimore-Washington is 735 miles (1,183 kilometers).
Southwest Airlines is the only airline flying nonstop from St. Louis to Baltimore-Washington.
There are no alliances flying direct from St. Louis to Baltimore-Washington at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from St. Louis to Baltimore-Washington:
The earliest flight departs at 05:00 from St. Louis and arrives at 08:05 at Baltimore-Washington.
The latest flight departs at 21:35 from St. Louis and arrives at 00:35 at Baltimore-Washington.
735 miles (1,183 km) · 2h
05:00
08:05
Southwest Airlines
WN 4440
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
05:20
08:20
Southwest Airlines
WN 2741
Southwest Airlines
Boeing 757
Y
W
J
F
05:50
08:50
Southwest Airlines
WN 2741
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
06:00
09:05
Southwest Airlines
WN 4440
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
06:20
09:25
Southwest Airlines
WN 4440
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
06:35
09:40
Southwest Airlines
WN 4440
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
06:40
09:40
Southwest Airlines
WN 2741
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
08:20
11:25
Southwest Airlines
WN 1769
Southwest Airlines
Boeing 757
Y
W
J
F
08:50
11:50
Southwest Airlines
WN 4131
Southwest Airlines
Boeing 757
Y
W
J
F
09:55
12:55
Southwest Airlines
WN 2737
Southwest Airlines
Boeing 757
Y
W
J
F
11:15
14:15
Southwest Airlines
WN 2098
Southwest Airlines
Boeing 757
Y
W
J
F
12:40
15:35
Southwest Airlines
WN 2523
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
13:15
16:20
Southwest Airlines
WN 2737
Southwest Airlines
Boeing 757
Y
W
J
F
13:40
16:40
Southwest Airlines
WN 2390
Southwest Airlines
Boeing 757
Y
W
J
F
16:00
19:05
Southwest Airlines
WN 3144
Southwest Airlines
Boeing 757
Y
W
J
F
16:45
19:40
Southwest Airlines
WN 2523
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
16:55
19:50
Southwest Airlines
WN 1511
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
17:35
20:40
Southwest Airlines
WN 4442
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
18:45
21:45
Southwest Airlines
WN 4442
Southwest Airlines
Boeing 757
Y
W
J
F
18:50
21:50
Southwest Airlines
WN 4442
Southwest Airlines
Boeing 737-800 (winglets)
Y
W
J
F
19:40
22:35
Southwest Airlines
WN 4633
Southwest Airlines
Boeing 757
Y
W
J
F
19:40
22:35
Southwest Airlines
WN 4633
Southwest Airlines
Boeing 737 MAX 8
Y
W
J
F
19:45
22:45
Southwest Airlines
WN 4442
Southwest Airlines
Boeing 757
Y
W
J
F
20:00
23:00
Southwest Airlines
WN 1555
Southwest Airlines
Boeing 757
Y
W
J
F
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