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SDF to IAD: distance & flight time
Louisville (Louisville International Standiford Field) → Washington (Washington Dulles International Airport)
450 mi
725 km · 391 nm
1h 27m
estimated nonstop flight time
Same time
time difference · heading east
See live SDF→IAD fares Phone-only fares on this route — call free
Flight time details
450 miles nonstop takes roughly 1h 27m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SDF — Louisville International Standiford Field · Louisville, United States
- IAD — Washington Dulles International Airport · Washington, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near SDF
- LOU · Bowman Field5 mi away
- FTK · Godman Army Air Field22 mi away
- FFT · Capital City Airport45 mi away
- LEX · Blue Grass Airport62 mi away
Frequently asked questions
How far is SDF from IAD?
The flight distance from Louisville (SDF) to Washington (IAD) is 450 miles (725 km, 391 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SDF to IAD?
A nonstop flight takes about 1h 27m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the cheapest way to fly from SDF to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SDF–IAD that never appear on search engines, with no booking fees.