Dulles (IAD) to Louisville (SDF) flights
An economy award from Dulles (IAD) to Louisville (SDF) starts at 6,000 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $33.60. One airline flies nonstop from Dulles (IAD) to Louisville (SDF): United Airlines. The two airports are 451 miles (726 km) apart. United Airlines is in Star Alliance. There are also 14 ways to fly it with one stop, through Pittsburgh, Raleigh/Durham and Charlotte and more.
How many miles IAD to SDF costs
Economy, one way, on the nonstop flights, from the Award Flight Pricer's award charts. Ranges run off-peak to peak; "from" is the floor of a dynamic price.
| Program | Economy | Taxes and fees |
|---|---|---|
| Air Canada AeroplanOn United Airlines | 6,000 | $33.60 |
| Avianca LifeMilesOn United Airlines | 7,500 | $30.60 |
| Emirates SkywardsOn United Airlines | 8,000 | $5.60–355.60 |
| ANA Mileage ClubOn United Airlines | 15,000 | $5.60 |
| Singapore Airlines KrisFlyerOn United Airlines | 15,000 | $5.60 |
| Turkish Airlines Miles&SmilesOn United Airlines | 15,000 | $5.60–45.60 |
| Thai Royal Orchid PlusOn United Airlines | 17,500 | $5.60 |
| EVA Air Infinity MileageLandsOn United Airlines | 19,500 | $5.60 |
| TAP Miles&GoOn United Airlines | 30,000 | $50.40 |
Business and first class prices are in the Award Flight Pricer. Chart prices need award space on your date, so search it before you transfer points.
Compare every program in the Award Flight PricerAirlines flying nonstop from IAD to SDF
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAD to SDF with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAD to SDF with one stop
14 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Pittsburgh (PIT)United Airlines, then Breeze Airways
- Via Raleigh/Durham (RDU)United Airlines, then Breeze Airways
- Via Charlotte (CLT)American Airlines the whole way
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Nashville (BNA)United Airlines, then Southwest Airlines
- Via Philadelphia (PHL)United Airlines, then American Airlines
- Via New York (EWR)United Airlines the whole way
- Via Atlanta (ATL)Delta Air Lines the whole way
- Via Chicago (ORD)United Airlines the whole way
- Via New York (LGA)United Airlines, then Delta Air Lines
- Via Charleston (CHS)United Airlines, then Breeze Airways
- Via Hartford (BDL)United Airlines, then Breeze Airways
- Via Boston (BOS)United Airlines, then Delta Air Lines and American Airlines
- Via Fort Walton Beach (VPS)Allegiant Air the whole way
IAD to SDF: common questions
How many miles does IAD to SDF cost?
In economy it starts at 6,000 miles one way with Air Canada Aeroplan on United Airlines, plus taxes and fees from $33.60. Next cheapest: Avianca LifeMiles (7,500), Emirates Skywards (8,000) and ANA Mileage Club (15,000). These are award chart prices from the Award Flight Pricer. Programs that price dynamically can cost more on busy dates, so check yours before you transfer points. Business and first class prices are in the pricer too.
Which airlines fly nonstop from IAD to SDF?
United Airlines (Star Alliance) flies nonstop from Dulles (IAD) to Louisville (SDF).
How far is Dulles from Louisville by plane?
Dulles (IAD) and Louisville (SDF) are 451 miles (726 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAD to SDF award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
Where can I connect between Dulles and Louisville?
The most direct connections are through Pittsburgh (PIT), Raleigh/Durham (RDU), Charlotte (CLT), Detroit (DTW) and Nashville (BNA). On 6 of them the same airline flies both flights, for example American Airlines through Charlotte.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.