$124 Cheap Flights from Louisville (SDF) to Denver (DEN)

View $124 flight on Thu, Jan 29, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)

Cheap Flights from Louisville to Denver (SDF-DEN)

Prices were available within the past 7 days and start at $124 for one-way flights and $243 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, Feb 5 - Wed, Feb 11
SDF
Louisville
DEN
Denver
$243 Roundtrip, found 1 day ago
$243
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 5 from Louisville to Denver, returning Wed, Feb 11, priced at $243 found 1 day ago
American Airlines
Thu, Feb 5 - Wed, Feb 11
SDF
Louisville
DEN
Denver
$253 Roundtrip, found 1 day ago
$253
Roundtrip
found 1 day ago
Select American Airlines flight, departing Thu, Feb 5 from Louisville to Denver, returning Wed, Feb 11, priced at $253 found 1 day ago
American Airlines
Wed, Dec 31 - Thu, Jan 1
SDF
Louisville
DEN
Denver
$271 Roundtrip, found 1 hour ago
$271
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Wed, Dec 31 from Louisville to Denver, returning Thu, Jan 1, priced at $271 found 1 hour ago
American Airlines
Thu, Feb 5 - Mon, Feb 9
SDF
Louisville
DEN
Denver
$283 Roundtrip, found 5 days ago
$283
Roundtrip
found 5 days ago
Select American Airlines flight, departing Thu, Feb 5 from Louisville to Denver, returning Mon, Feb 9, priced at $283 found 5 days ago
American Airlines
Wed, Dec 3 - Sat, Dec 6
SDF
Louisville
DEN
Denver
$291 Roundtrip, found 2 days ago
$291
Roundtrip
found 2 days ago
Select American Airlines flight, departing Wed, Dec 3 from Louisville to Denver, returning Sat, Dec 6, priced at $291 found 2 days ago
American Airlines
Wed, Dec 31 - Mon, Jan 5
SDF
Louisville
DEN
Denver
$293 Roundtrip, found 2 hours ago
$293
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Wed, Dec 31 from Louisville to Denver, returning Mon, Jan 5, priced at $293 found 2 hours ago
Southwest Airlines
Thu, Feb 5 - Wed, Feb 11
SDF
Louisville
DEN
Denver
$298 Roundtrip, found 1 day ago
$298
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Feb 5 from Louisville to Denver, returning Wed, Feb 11, priced at $298 found 1 day ago
Southwest Airlines
Thu, Feb 5 - Wed, Feb 11
SDF
Louisville
DEN
Denver
$299 Roundtrip, found 1 day ago
$299
Roundtrip
found 1 day ago
Select Southwest Airlines flight, departing Thu, Feb 5 from Louisville to Denver, returning Wed, Feb 11, priced at $299 found 1 day ago
United
Thu, Feb 5 - Wed, Feb 11
SDF
Louisville
DEN
Denver
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select United flight, departing Thu, Feb 5 from Louisville to Denver, returning Wed, Feb 11, priced at $304 found 1 day ago
Delta
Sat, Dec 13 - Tue, Dec 16
SDF
Louisville
DEN
Denver
$330 Roundtrip, found 15 hours ago
$330
Roundtrip
found 15 hours ago
Select Delta flight, departing Sat, Dec 13 from Louisville to Denver, returning Tue, Dec 16, priced at $330 found 15 hours ago

Find the cheapest month to fly from Louisville (SDF) to Denver (DEN)

August is typically the cheapest month to fly

From $139 - $447 per traveler.

Alternative airports near Denver

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Denver Intl. DEN. Cheapest option available. Average driving time to city center is 32 minutes. Flights from $549
DEN
Denver Intl.
Cheapest
Average driving time to city center32 min
Flights from $549

Frequently asked questions

How much does a flight from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN) cost?
Lock in a cheap one-way flight from $124 or cheap return flight from $243 from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
Flying in February may help you find better deals, as it's the cheapest month for flights between SDF and DEN. You'll typically find the lowest prices during the off-season.
Which airlines fly direct from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
When heading out of Louisville Intl. Airport (SDF), you can catch a direct flight to Denver Intl. Airport (DEN) with United Airlines.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
The cheapest airline to offer flights between Louisville Intl. Airport (SDF) and Denver Intl. Airport (DEN) can change depending on when you want to travel. Southwest Airlines and United Airlines are just some of the choices offering reasonable prices. Use Expedia's filters to compare airlines in one place and find the right SDF to DEN flight for your budget.
How many flights per day from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
When flying out of Louisville Intl. Airport (SDF), you'll have your pick from an average of 2 daily nonstop flights to Denver Intl. Airport (DEN).
What are the most popular departure times for flights from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
Flights between SDF and DEN are busiest at 9 AM. If you'd like a more relaxed experience and potentially cheaper tickets, look for a time when demand is lower.
What day of the week has the most flights from SDF to DEN?
Friday has the most flights from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN). Consider taking off on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
Louisville Intl. Airport (SDF)'s earliest flight to Denver Intl. Airport (DEN) is at approximately 6:35AM UTC-5. With a total journey time of 3h 10m, you'll touch down at around 7:45AM UTC-7.
How long does it take to fly from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
Flights from SDF to DEN have an average travel time of 3 hours and 11 minutes. The total distance between these two airports is 1,000 mi.
What is the best time to fly from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
Opt for a flight from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN) that leaves before 3 PM to reduce the risk of cancellations and delays. Departures after this hour are on average 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Denver from Louisville Intl. Airport (SDF)?
Browse your flight options from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN). This is the only Denver airport you can jet into if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN) last-minute?
Holding off until just before your departure to book a ticket from SDF to DEN generally means paying more. Although you may find some last-minute offers, there's no guarantee. Keep your travel schedule open to maximize your chances of landing a bargain.
Is it cheaper to book a SDF to DEN flight and hotel package?
Opting for a SDF to DEN flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of accommodations and then add flights, car rentals and activities to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Denver Intl. Airport (DEN)?
If you reserved your SDF to DEN flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

Travel information

Origin airport
Louisville Intl.
Destination airport
Denver Intl.
Airlines serving
American Airlines, Delta, Southwest Airlines, United
Roundtrip price
$243
Distance
1020 mi
Average flight time
1 hour 1 min

Book with confidence

Louisville to Denver Flights

The cheapest times to fly from Louisville to Denver

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Louisville to Denver are during the month of February. You can find some of the cheapest flights from Louisville to Denver with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Denver

Sunday is one of the best days to book for cheap flights from Louisville to Denver: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Louisville to Denver

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Louisville to Denver in 2025. You can also book with separate airlines for your outbound and return journeys, from $124 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Louisville to Denver flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Louisville to Denver airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Louisville to Denver Flights

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*Available to One Key members.