Direct (nonstop) flights from Dulles to Louisville
1 airline flys nonstop from Washington Dulles International (IAD) to Louisville International Airport (SDF). It's 452 miles (727 km), about 1h 54m in the air. Operated by United Airlines.
United Airlines
Route data last updated: May 26, 2026
Airlines with non-stop flights
UA
United Airlines
Alternative Routes
Other ways to fly from Dulles to Louisville with one stop · direct emits 84 kg CO₂ per passenger
Looking for the return flight?
SDF → IAD: Flights from Louisville to DullesOther direct flights from Dulles
Direct flights from Louisville (SDF)
Frequently Asked Questions
How long is the direct flight from Dulles to Louisville?
A nonstop flight from Dulles (IAD) to Louisville (SDF) takes approximately 1 hours and 54 minutes. The distance is 452 miles (727 km).
Which airlines fly nonstop from Dulles to Louisville?
Just United Airlines.
Is there a nonstop flight from Dulles to Louisville?
Yes. 1 airline: United Airlines.
How far is Dulles from Louisville?
The flight distance from Dulles to Louisville is 452 miles (727 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Dulles to Louisville?
At 1h 54m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
What is the carbon footprint of a flight from Dulles to Louisville?
Roughly 84 kg CO2 per passenger one-way. That's about the same as driving 420 km.
Is the return flight from Louisville to Dulles also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Dulles to Louisville?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Washington Dulles International for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.