The St Louis to Baltimore route connects St. Louis Lambert International Airport (STL) in US with Baltimore/Washington International Thurgood Marshall Airport (BWI) in US. This short-haul flight covers approximately 824 miles (1326 km) with a typical flight time of 1h 41m. This route is operated by Southwest. AirportRoutes has tracked 12 unique flight numbers on this route.
Compare flight prices across hundreds of booking sites
Search STL → BWI flightsOpens a live price search — just pick your dates
St. Louis Lambert International Airport
KSTLSTLBaltimore/Washington International Thurgood Marshall Airport
KBWIBWI1
Operator12
Tracked Flights824
Miles1h 41m
Flight Duration| Airline | ICAO | IATA |
|---|---|---|
| Southwest |
SWA
|
WN
|
| Day | Flights Observed | Frequency | Activity |
|---|---|---|---|
| Monday | 8 | 19% |
|
| Tuesday | 7 | 16% |
|
| Wednesday | 3 | 7% |
|
| Thursday | 7 | 16% |
|
| Friday | 6 | 14% |
|
| Saturday | 6 | 14% |
|
| Sunday | 6 | 14% |
|
Pattern Analysis
| Airline | Flight Numbers | Aircraft Type | Typical Time | Days Active | Last Seen | Status |
|---|---|---|---|---|---|---|
|
Southwest
SWA
/ WN
|
|
B38M | 05:00 5:00 AM (Representative) |
M
T
W
T
F
S
S
|
Jul 14, 2026 | Active |
| Departure Time | Operator | ICAO | IATA |
|---|---|---|---|
| 05:00 5:00 AM | Southwest |
SWA
|
WN
|
Time Information
Times are shown in the departure airport's local timezone (KSTL - America/Chicago).