STL → BWI: cancellations & delays
Over Jan 2023 - Apr 2026, 1.1% of St. Louis Lambert International Airport (STL) to Baltimore/Washington International Thurgood Marshall Airport (BWI) flights were cancelled and 18.5% arrived at least 15 minutes late, across 4,233 flights, flown by WN. Cancellations peak in January.
Check today's live STL departures →Airport pages: St. Louis Lambert International Airport (STL) · Baltimore/Washington International Thurgood Marshall Airport (BWI)
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.