SEA → BWI: cancellations & delays
Over Jan 2023 - Apr 2026, 0.7% of Seattle–Tacoma International Airport (SEA) to Baltimore/Washington International Thurgood Marshall Airport (BWI) flights were cancelled and 21.9% arrived at least 15 minutes late, across 1,905 flights, flown by AS, WN. Cancellations peak in January.
Check today's live SEA departures →Airport pages: Seattle–Tacoma International Airport (SEA) · 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.