IAD → SDF: cancellations & delays
Over Jan 2023 - Apr 2026, 0.9% of Washington Dulles International Airport (IAD) to Louisville Muhammad Ali International Airport (SDF) flights were cancelled and 12.2% arrived at least 15 minutes late, across 1,282 flights, flown by YX, UA. Cancellations peak in January.
Check today's live IAD departures →Airport pages: Washington Dulles International Airport (IAD) · Louisville Muhammad Ali International Airport (SDF)
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.