BWI → STL: cancellations & delays
Over Jan 2023 - Apr 2026, 1.0% of Baltimore/Washington International Thurgood Marshall Airport (BWI) to St. Louis Lambert International Airport (STL) flights were cancelled and 21.5% arrived at least 15 minutes late, across 4,230 flights, flown by WN. Cancellations peak in January.
Check today's live BWI departures →Airport pages: Baltimore/Washington International Thurgood Marshall Airport (BWI) · St. Louis Lambert International Airport (STL)
Rates are historical averages from U.S. DOT (BTS) on-time records; a specific flight's live estimate can differ with weather and the day's disruptions.