Flights Louisville → Denver
SDF → DEN
How long is the flight from Louisville to Denver?
The flight from Louisville (SDF) to Denver (DEN) takes about 2h 29m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
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 669 flights monitored in recent months, 84% arrived on time (within 15 min of schedule), with an average delay of 9 minutes. The cancellation rate is 0.45%. FlightGuard's average computed risk is 18.9/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Denver the average ATFM delay is 5.5 minutes (main cause: atfm). Departing from Louisville the average ATFM delay is 5.5 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 57% of SDF-DEN flights take off then.
Air-traffic congestion: departing Louisville the average ATFM delay is 5.5 min (atfm); arriving into Denver it is 5.5 min (atfm).
Across 669 tracked SDF-DEN flights, 84% left on time with an average delay of 9 min and a 0.5% 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% |
| Southwest Airlines (WN) | 75% | 5 min | 0.3% |
Airlines operating SDF-DEN
Airports
Frequently asked questions about SDF-DEN
The flight from Louisville (SDF) to Denver (DEN) takes about 2h 29m. This is an estimate based on the distance between the two airports: the real time depends on the aircraft, wind and any stops.
On the Louisville (SDF) -> Denver (DEN) route, on-time performance is 84% with an average delay of 9 minutes, based on 669 tracked flights.
The cancellation rate on Louisville-Denver is 0.45% across 669 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.
