DLH - SDF

$238 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 8/23. 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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Flights 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, Aug 23 - Tue, Aug 26
Delta Logo
5:10 am - 11:58 amDLH-SDF
5h 48m1 stop
Delta Logo
6:00 am - 10:15 amSDF-DLH
5h 15m1 stop
$238Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
5:10 am - 2:26 pmDLH-SDF
8h 16m2 stops
Delta Logo
6:00 am - 10:15 amSDF-DLH
5h 15m1 stop
$244Delta
Find Deal
Tue, Dec 23 - Tue, Dec 30
Delta Logo
4:00 pm - 10:53 pmDLH-SDF
5h 53m1 stop
Delta Logo
6:36 am - 11:08 amSDF-DLH
5h 32m1 stop
$268Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
5:10 am - 2:26 pmDLH-SDF
8h 16m2 stops
Delta Logo
6:00 am - 10:15 amSDF-DLH
5h 15m1 stop
$274Delta
Find Deal
Tue, Dec 23 - Mon, Dec 29
Delta Logo
4:00 pm - 10:53 pmDLH-SDF
5h 53m1 stop
Delta Logo
6:36 am - 11:08 amSDF-DLH
5h 32m1 stop
$317Delta
Find Deal
Sat, Aug 23 - Tue, Aug 26
Delta Logo
5:10 am - 2:26 pmDLH-SDF
8h 16m2 stops
Delta Logo
6:00 am - 10:46 pmSDF-DLH
17h 46m2 stops
$378Delta
Find Deal
Tue, Dec 23 - Tue, Dec 30
Delta Logo
4:00 pm - 10:53 pmDLH-SDF
5h 53m1 stop
Delta Logo
7:40 am - 3:20 pmSDF-DLH
8h 40m2 stops
$433Delta
Find Deal
Tue, Dec 23 - Mon, Dec 29
Delta Logo
11:55 am - 10:50 pmDLH-SDF
9h 55m2 stops
Delta Logo
6:36 am - 11:08 amSDF-DLH
5h 32m1 stop
$434Delta
Find Deal
Mon, Dec 22 - Mon, Dec 29
United Airlines Logo
3:14 pm - 10:09 pmDLH-SDF
5h 55m1 stop
United Airlines Logo
9:00 am - 2:33 pmSDF-DLH
6h 33m1 stop
$546United Airlines
Find Deal
Mon, Jul 14 - Fri, Jul 18
United Airlines Logo
11:27 am - 5:27 pmDLH-SDF
5h 00m1 stop
United Airlines Logo
7:00 am - 10:51 amSDF-DLH
4h 51m1 stop
$692United Airlines
Find Deal
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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 ($238) and United Airlines ($546).

Good to know

High seasonFebruary
Cheapest flight$238
Most popular time to fly and prices are also 19% 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 $238 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.
8.0
DeltaOverall score based on 7973 reviews
7.9Comfort
8.5Crew
8.2Boarding
7.9Entertainment
7.3Food
Airline reviews

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

6.0 GoodBrenda, Jul 2025SAV - ATL
Read more Delta reviews

From Atlanta to Savannah - flight connection was way to short (we weren't even late landing ) and flight was already boarding when we landed - we were told we were the last on board and so we had to gate check our bags. Once we got on the plane, there were at least seven open bag spots so that was unnecessary delay. There should be better communication between the gate agent and the crew.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

Not a "Delta" issue, but a JFK issue: We booked a connecting flight with 3 1/2 hours between to clearn immigration and customs. Our inbound flight (BCN to JFK) was on the taxiway 45 minutes which ate into our layover time. Immigtration was insanely quick with the CBP MPC app; however, clearing TSA (again, after we were ALREADY cleared in Spain on the inbound international flight) took over 95 minutes. This left us with 10 minutes before boarding the connecting flight (JFK to SAN) to walk to the far end of Terminal 4 and try to find food. We didn't find any food that could promise to serve us in under 10 minutes so we boarded the Delta flight after coming off a plance and an 8-hour flight knowing that we wouldn't be served any food on the next 5 1/2 hour flight. I feel like Delta needs to put pressure on the JFK TSA to open more screening stations (by our count, we saw only 5 scanners open and a line of - as we said - over 90 minutes. The insult is that we WERE ALREADY SCREENED through TSA, but as you come off one flight into the USA, you have to go through the whole process again. It seems like if you have a connecting flight, there should be a way to pass through immigration and customs without needing to return through TSA.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

Flight was an hour late, who knows why. It was OK, nothing outstanding.

Only not having an assigned seat was an issue. Rest was great

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Boarding was organised and relaxed. Crew were fantastic! Seats were lacking padding causing butt pain and stiffness.

I like for how they process during check in. It was very smoothly.

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

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