Dulles to Louisville (IAD–SDF) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
IAD–SDF is served by 1 airline with nonstop service. United Airlines leads the route. The flight covers 450 miles in approximately 1h 41m. Beyond nonstop, 143 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| UA United Airlines Also: AC, CM | 37 | 73G, E75L, E7W | 1h41-1h57 | Star Alliance | AC, CM |
Weekly Schedule Pattern
Connection Landscape
Other ways to reach Louisville from Dulles
| Metric | IAD→SDF | DCA→SDF | BWI→SDF |
|---|---|---|---|
| Distance from IAD | – | 23 mi | 45 mi |
| Nonstop airlines | 1 | 4 | 4 |
| Weekly flights | 58 | 56 | 19 |
| Flight time | 1h 41m | 1h 50m | 1h 45m |
| Departure OTP | 92% | – | – |
Travel Essentials
IAD: EDT · SDF: EDT
When it's 6:00 PM in Dulles, it's 6:00 PM in Louisville.
WMATA Silver Line Metro now reaches Dulles directly; take Silver Line to Washington Dulles Airport station (about 65 min from Metro Center, ~$7). The connection opened in late 2022.Ride-shares from downtown DC run $35–60 and take 35–50 minutes via I-66 (longer during peak hours). Washington Flyer coach to Wiehle-Reston East Metro costs $6. The airport is 27 miles from downtown; taxis are expensive ($60–80).
IAD–SDF Quick Facts
Frequently Asked Questions
Flights from IAD to SDF
Washington Dulles International Airport (IAD) and Louisville Muhammad Ali International Airport (SDF) are connected by nonstop service from United Airlines. With 58 weekly departures, this is a heavily served route.
IAD to SDF Flight Duration and Schedule
Nonstop flight time from IAD to SDF ranges from 1 hours 41 minutes to 1 hours 57 minutes. The route covers a distance of 450 miles (725 km). There are approximately 58 weekly flights outbound and 44 return, totaling 102 flights per week in both directions.
Connecting Options and Alternatives
143 one-stop connections are available, with the fastest taking approximately 3 hours via BKL. Two-stop connections are also available via intermediate hubs. Nearby alternative airports include Washington (DCA), Baltimore (BWI) and Harrisburg (MDT).