Direct (nonstop) flights from Louisville to Denver
2 airlines fly nonstop from Louisville International Airport (SDF) to Denver International (DEN). It's 1,023 miles (1,647 km), about 2h 59m in the air. Operated by United Airlines, Southwest Airlines.
United Airlines
Southwest Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UA
United Airlines
WN
Southwest Airlines
Alternative Routes
Other ways to fly from Louisville to Denver with one stop · direct emits 173 kg CO₂ per passenger
Looking for the return flight?
DEN → SDF: Flights from Denver to LouisvilleOther direct flights from Louisville
Direct flights from Denver (DEN)
Frequently Asked Questions
How long is the direct flight from Louisville to Denver?
A nonstop flight from Louisville (SDF) to Denver (DEN) takes approximately 2 hours and 59 minutes. The distance is 1,023 miles (1,647 km).
Which airlines fly nonstop from Louisville to Denver?
2 airlines: United Airlines, Southwest Airlines.
Is there a nonstop flight from Louisville to Denver?
Yes. 2 airlines: United Airlines, Southwest Airlines.
How far is Louisville from Denver?
The flight distance from Louisville to Denver is 1,023 miles (1,647 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Louisville to Denver?
At 2h 59m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
What is the carbon footprint of a flight from Louisville to Denver?
Roughly 173 kg CO2 per passenger one-way. That's about the same as driving 865 km.
Is the return flight from Denver to Louisville also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Louisville to Denver?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Louisville International Airport for this flight?
1.5-2 hours for domestic. Add more time during holidays or busy travel weekends.