$214 Cheap Delta flights Louisville (SDF) to Duluth (DLH)

You can discover affordable round-trip Delta Air Lines flights from $238 from SDF to DLH by filtering your results from “Price (lowest to highest)” on Expedia. Or search for deals from $214 for a one-way trip.**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.

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

Begin your search one to three months ahead of your travel date to get cheaper fares on Delta Air Lines flights from Louisville Intl. Airport (SDF) to Duluth Intl. Airport (DLH). 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 reduce 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 the timing right, and you can enjoy significant savings on domestic journeys.*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.

Simply enter your dates, click search and tick the “Nonstop” filter on Expedia to find any direct flights from SDF to DLH with Delta Air Lines or another airline.

To find the earliest departures from SDF to DLH with Delta Air Lines, sort your results by “Early Morning” and “Morning.” Choosing an early flight usually 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.

Jump on a Delta Air Lines flight from Louisville Intl. Airport (SDF) to Duluth, and you’ll probably come in to Duluth Intl. Airport (DLH). This is the airline’s primary hub in this destination.

Jetting off from SDF to DLH with Delta Air Lines comes with a variety of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when booking through Expedia, One Key™ members can collect OneKeyCash™* to redeem 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 add a charge after that time. For further information about modifying your flights, check out your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to make changes without being charged, tick the “Changes included” and “No cancel fee” filters when planning your next escape.