Flights Baltimore → St. Louis
BWI → STL
Route overview
The flight route from Baltimore to St. Louis operates with a Boeing 737-300 aircraft and has an overall on-time performance rate of 76%, with an average delay time of 10.1 minutes per flight. Over the past year, there have been a total of 288 flights on this route, serving the busy St. Louis airport which handles approximately 13,665,517 passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Baltimore (BWI) → St. Louis (STL) route is operated by Southwest Airlines. Across 381 flights monitored in recent months, 75% arrived on time (within 15 min of schedule), with an average delay of 11 minutes. The cancellation rate is 1.31%. FlightGuard's average computed risk is 23.2/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At St. Louis the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Baltimore the average ATFM delay is 2.0 minutes.
Heading to St. Louis: what to expect in this direction
Flying from Baltimore (BWI) to St. Louis (STL) heads west for about 1,184 km, a flight time of roughly 1h 54m.
Departures from Baltimore on this leg cluster in the overnight window: about 39% of BWI-STL flights take off then.
Air-traffic congestion: departing Baltimore the average ATFM delay is 2.0 min (atfm); arriving into St. Louis it is 2.0 min (atfm).
Across 381 tracked BWI-STL flights, 75% left on time with an average delay of 11 min and a 1.3% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating BWI-STL
Airports
Frequently asked questions about BWI-STL
On the Baltimore (BWI) -> St. Louis (STL) route, on-time performance is 75% with an average delay of 11 minutes, based on 381 tracked flights.
The cancellation rate on Baltimore-St. Louis is 1.31% across 381 monitored flights.
The route is operated by 1 airline: Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at St. Louis, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
