Washington (IAD) to Louisville (SDF) flights
Nonstop from Washington Dulles International to Louisville Muhammad Ali International Airport: distance, flying time, which airlines fly it and how often.
Distance
450 mi, great circle
Flying time
typical, gate to gate
Flights a day
average, November 2026
Airlines
passenger airlines
Airlines flying IAD to SDF
Also in the data (cargo, charter or a foreign airline on a domestic route): Mesa Airlines, NetJets Aviation.
Route map
The shortest path over the Earth's surface. Actual tracks vary with winds and airspace. Map © OpenStreetMap contributors.
Cheapest recent fare
Fares found in recent searches load here. You can also compare IAD to SDF fares by month.
Both directions
- Louisville Muhammad Ali International Airport (SDF) · we don't have SDF's route list yet
- All nonstop routes from Washington (IAD)
- IAD to SDF on the flight-path tool
Frequently asked questions
How long is the flight from Washington to Louisville?
About 1h 37m gate to gate for the 725 km (450 mile) trip, estimated from distance. Schedules vary by airline and season, and winds can add or save time.
Which airlines fly nonstop from IAD to SDF?
Sun Country Airlines and United Airlines, with about 3.4 flights a day between them in our data (AeroDataBox, November 2026).