Flights Louisville → Washington
SDF → IAD
How long is the flight from Louisville to Washington?
The flight from Louisville (SDF) to Washington (IAD) takes 1h 14m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
Route overview
The flight route from Louisville to Washington demonstrates high punctuality with a 90% on-time arrival rate and an average delay of just 1.1 minutes. Over the course of a year, this route sees approximately 175 flights connecting two major cities, serving a destination airport that handles nearly 21.4 million passengers annually.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Louisville (SDF) → Washington (IAD) route is operated by United Airlines. Across 538 flights monitored in recent months, 90% arrived on time (within 15 min of schedule), with an average delay of 6 minutes. The cancellation rate is 0.56%. FlightGuard's average computed risk is 19.7/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Washington the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Louisville the average ATFM delay is 5.5 minutes.
Heading to Washington: what to expect in this direction
Flying from Louisville (SDF) to Washington (IAD) heads east for about 725 km, a flight time of roughly 1h 14m.
Departures from Louisville on this leg cluster in the overnight window: about 55% of SDF-IAD flights take off then.
Air-traffic congestion: departing Louisville the average ATFM delay is 5.5 min (atfm); arriving into Washington it is 5.5 min (atfm).
Across 538 tracked SDF-IAD flights, 90% left on time with an average delay of 6 min and a 0.6% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 83% | 5 min | 1.3% |
Airlines operating SDF-IAD
Airports
Frequently asked questions about SDF-IAD
The flight from Louisville (SDF) to Washington (IAD) takes 1h 14m on average. That is the median time recorded across 2 scheduled flights on this leg; the actual time varies by a few minutes with wind, routing and take-off queues.
On the Louisville (SDF) -> Washington (IAD) route, on-time performance is 90% with an average delay of 6 minutes, based on 538 tracked flights.
The cancellation rate on Louisville-Washington is 0.56% across 538 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Washington, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
