$164 Cheap Delta flights Denver (DEN) to Louisville (SDF)

You’ll discover budget-friendly return Delta Air Lines flights from $298 from DEN to SDF by organizing your results from “Price (lowest to highest)” on Expedia. Or search for options from $164 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for one-way or return flights to Louisville in January or December. You could find lower fares with Delta Air Lines during these off-peak months.

Start searching one to three months before your departure to get cheaper fares on Delta Air Lines flights from Denver Intl. Airport (DEN) to Louisville Intl. Airport (SDF). You can save 25% by booking your domestic flight 34 to 86 days in advance versus last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic trips.*Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Use the “Nonstop” filter when browsing for direct Delta Air Lines flights from DEN to SDF. It’s also a great way to compare other carriers servicing the same nonstop route.

Filter your results by “Early Morning” and “Morning” to see the earliest departures from DEN to SDF. Setting off early means you’re less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Louisville Intl. Airport (SDF) is the main Louisville hub for Delta Air Lines flights from Denver Intl. Airport (DEN).

Heading from DEN to SDF with Delta Air Lines comes with a range of perks, including a rewarding loyalty program and an excellent in-flight experience. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to spend on select future travel purchases. That’s on top of the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Changes are typically free within 24 hours of making a booking, but your airline may charge a fee after that time. For further details about modifying your flights, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to update your itinerary without additional costs, check the “Changes included” or “No cancel fee” filter when planning your next adventure.