DLH - SDF

$273 Find Cheap Flights from Duluth to Louisville

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Duluth to Louisville departing on 9/27. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Duluth to Louisville, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Duluth to Louisville (DLH-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Duluth to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Duluth to Louisville

Sat, Sep 27 - Wed, Oct 1
Delta Logo
5:10 am - 11:49 amDLH-SDF
5h 39m1 stop
Delta Logo
6:00 am - 10:07 amSDF-DLH
5h 07m1 stop
$273Delta
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Sat, Sep 27 - Wed, Oct 1
Delta Logo
5:10 am - 11:49 amDLH-SDF
5h 39m1 stop
Delta Logo
6:00 am - 10:07 amSDF-DLH
5h 07m1 stop
$318Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
5:10 am - 2:53 pmDLH-SDF
8h 43m2 stops
Delta Logo
6:00 am - 10:07 amSDF-DLH
5h 07m1 stop
$409Delta
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
7:50 am - 3:46 pmDLH-SDF
6h 56m1 stop
Delta Logo
7:50 am - 3:40 pmSDF-DLH
8h 50m2 stops
$434Delta
Find Deal
Mon, Sep 29 - Thu, Oct 2
United Airlines Logo
3:07 pm - 10:30 pmDLH-SDF
6h 23m1 stop
United Airlines Logo
8:45 am - 2:32 pmSDF-DLH
6h 47m1 stop
$455United Airlines
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Mon, Oct 13 - Thu, Oct 16
United Airlines Logo
11:20 am - 6:33 pmDLH-SDF
6h 13m1 stop
United Airlines Logo
8:45 am - 2:32 pmSDF-DLH
6h 47m1 stop
$476United Airlines
Find Deal
Mon, Sep 29 - Thu, Oct 2
United Airlines Logo
11:20 am - 5:13 pmDLH-SDF
4h 53m1 stop
United Airlines Logo
8:45 am - 2:32 pmSDF-DLH
6h 47m1 stop
$492United Airlines
Find Deal
Sat, Sep 27 - Wed, Oct 1
Delta Logo
5:10 am - 2:53 pmDLH-SDF
8h 43m2 stops
Delta Logo
7:50 am - 3:40 pmSDF-DLH
8h 50m2 stops
$499Delta
Find Deal
Tue, Dec 23 - Tue, Dec 30
United Airlines Logo
3:03 pm - 1:13 pmDLH-SDF
21h 10m1 stop
United Airlines Logo
5:40 am - 2:28 pmSDF-DLH
9h 48m1 stop
$530United Airlines
Find Deal
Tue, Dec 23 - Tue, Dec 30
Delta Logo
5:00 am - 1:39 pmDLH-SDF
7h 39m2 stops
Delta Logo
6:50 am - 11:15 amSDF-DLH
5h 25m1 stop
$552Delta
Find Deal

Everything you should know

Top airlines
Delta
Cheapest • from $273 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Cheapest round-trip
$273
Delta
Sat 9/27Wed 10/1
DLH - SDF • 1 stop
Cheapest one-way
Multiple Airlines
Wed 9/17
DLH - SDF • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Booking Insights

KAYAK's insights & trends for Duluth to Louisville flights

Get data-powered insights and trends into flights from Duluth to Louisville to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Duluth to Louisville?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Duluth to Louisville were found on Delta ($273) and United Airlines ($455).

Find deals

Good to know

Cheapest flight$273
Most popular time to fly and prices are also 38% lower on average.
Flight from Duluth to Louisville

When to book flights from Duluth to Louisville

Are your dates flexible? Find out the best times to travel from Duluth to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Duluth to Louisville

  • What is the cheapest flight from Duluth to Louisville?

    In the last 3 days, the lowest price for a flight from Duluth to Louisville was $273 for a round-trip ticket.

  • Do I need a passport to fly between Duluth and Louisville?

    No, a passport isn't needed to fly from Duluth to Louisville. However, local authorities might ask for an official ID.

  • Which aircraft models fly most regularly from Duluth to Louisville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Duluth to Louisville?

    SkyTeam, and Star Alliance are the airline alliances operating flights between Duluth and Louisville, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Duluth to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Duluth to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Duluth to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Duluth is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Duluth to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Duluth with another airline. Booking your flights between Duluth and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Duluth to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Duluth up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Duluth to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Duluth to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Duluth to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 7957 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.5Crew
8.2Boarding
Airline reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

8.0 ExcellentAnonymous, Sep 2025GFK - MSP
Read more Delta reviews

The staff and the boarding procedure were all amazing . The one flight was not equipped with WIFI which now adays seems odd. All in all the experience was good

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

Mechanic delay in addition to a 2 hour change in takeoff time was frustrating.

Delayed due to thunderstorms and no in-flight service due to rough weather — both of which are out of Delta’s control. Flight was good overall.

Everything you need to know for your flight from Duluth to Louisville

Information on your arrival and departure airports

Duluth (DLH)
Louisville (SDF)

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