MDW → IAD: cancellations & delays
Over Jan 2023 - Apr 2026, 1.8% of Chicago Midway International Airport (MDW) to Washington Dulles International Airport (IAD) flights were cancelled and 22.3% arrived at least 15 minutes late, across 904 flights, flown by WN. Cancellations peak in January.
Check today's live MDW departures →Airport pages: Chicago Midway International Airport (MDW) · Washington Dulles International Airport (IAD)
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.