Flights Louisville → Denver
SDF → DEN
Route overview
The flight route from Louisville to Denver has an on-time performance rate of 83%, with an average delay of 11.7 minutes per flight. Over the past year, this route has seen a total of 269 flights, connecting two cities served by airports that handle millions of passengers annually; specifically, the destination airport in Denver opened in 1989 and currently serves approximately 82,358,744 passengers each year.
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) → Denver (DEN) route is operated by United Airlines, Southwest Airlines. Across 362 flights monitored in recent months, 85% arrived on time (within 15 min of schedule), with an average delay of 10 minutes. The cancellation rate is 0.55%. FlightGuard's average computed risk is 16.7/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Denver the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Louisville the average ATFM delay is 2.0 minutes.
Heading to Denver: what to expect in this direction
Flying from Louisville (SDF) to Denver (DEN) heads west for about 1,644 km, a flight time of roughly 2h 29m.
Departures from Louisville on this leg cluster in the morning window: about 56% of SDF-DEN flights take off then.
Air-traffic congestion: departing Louisville the average ATFM delay is 2.0 min (atfm); arriving into Denver it is 2.0 min (atfm).
Across 362 tracked SDF-DEN flights, 85% left on time with an average delay of 10 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) | 74% | 10 min | 6.9% |
| Southwest Airlines (WN) | 73% | 6 min | 3.1% |
Airlines operating SDF-DEN
Airports
Frequently asked questions about SDF-DEN
On the Louisville (SDF) -> Denver (DEN) route, on-time performance is 85% with an average delay of 10 minutes, based on 362 tracked flights.
The cancellation rate on Louisville-Denver is 0.55% across 362 monitored flights.
The route is operated by 2 airlines: United Airlines, Southwest Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Denver, 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.
