Flights Houston → Louisville
IAH → SDF
Route overview
The flight route from Houston to Louisville operates with an average on-time performance of 85%, with flights typically experiencing a mean delay of 5.9 minutes. Over the course of a year, this route sees approximately 257 flights using Embraer 170 aircraft, serving a destination airport that accommodates nearly 3.35 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 Houston (IAH) → Louisville (SDF) route is operated by United Airlines. Across 344 flights monitored in recent months, 83% arrived on time (within 15 min of schedule), with an average delay of 13 minutes. The cancellation rate is 2.33%. FlightGuard's average computed risk is 29.7/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Louisville the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Houston the average ATFM delay is 2.0 minutes.
Heading to Louisville: what to expect in this direction
Flying from Houston (IAH) to Louisville (SDF) heads north-east for about 1,268 km, a flight time of roughly 2h 0m.
Departures from Houston on this leg cluster in the morning window: about 43% of IAH-SDF flights take off then.
Air-traffic congestion: departing Houston the average ATFM delay is 2.0 min (atfm); arriving into Louisville it is 2.0 min (atfm).
Across 344 tracked IAH-SDF flights, 83% left on time with an average delay of 13 min and a 2.3% 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) | 74% | 10 min | 6.9% |
Airlines operating IAH-SDF
Airports
Frequently asked questions about IAH-SDF
On the Houston (IAH) -> Louisville (SDF) route, on-time performance is 83% with an average delay of 13 minutes, based on 344 tracked flights.
The cancellation rate on Houston-Louisville is 2.33% across 344 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 Louisville, 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.
