DLH - SDF

$293 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 4/10. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$293
Delta
Fri 4/10Sun 4/19
DLH - SDF • 1 stop
Cheapest one-way
Multiple Airlines
Mon 1/19
DLH - SDF • multi-stop
Top airlines
Delta
Cheapest • from $293 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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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!
Flight Deals
Booking Insights
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

Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
6:15 am - 12:06 pm
SDF
-
DLH
6h 51m
1 stop
$293Delta
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
6:15 am - 12:06 pm
SDF
-
DLH
6h 51m
1 stop
$328Delta
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
3:09 pm - 10:46 pm
SDF
-
DLH
8h 37m
2 stops
$344Delta
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
3:09 pm - 10:46 pm
SDF
-
DLH
8h 37m
2 stops
$389Delta
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
3:05 pm - 8:28 pm
DLH
-
SDF
4h 23m
1 stop
United Airlines Logo
8:29 am - 2:30 pm
SDF
-
DLH
7h 01m
1 stop
$398United Airlines
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
3:05 pm - 10:30 pm
DLH
-
SDF
6h 25m
1 stop
United Airlines Logo
8:29 am - 2:30 pm
SDF
-
DLH
7h 01m
1 stop
$413United Airlines
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
6:15 am - 12:06 pm
SDF
-
DLH
6h 51m
1 stop
$443Delta
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
6:15 am - 12:06 pm
SDF
-
DLH
6h 51m
1 stop
$478Delta
Fri, Apr 10 - Sun, Apr 19
Delta Logo
5:00 am - 11:51 am
DLH
-
SDF
5h 51m
1 stop
Delta Logo
3:09 pm - 10:46 pm
SDF
-
DLH
8h 37m
2 stops
$494Delta
Sat, Jan 31 - Tue, Feb 3
United Airlines Logo
3:05 pm - 10:30 pm
DLH
-
SDF
6h 25m
1 stop
United Airlines Logo
9:50 am - 9:59 pm
SDF
-
DLH
13h 09m
2 stops
$513United Airlines
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 ($293) and United Airlines ($398).

Find deals

Good to know

Cheapest flight$293
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 $293 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 is the only airline alliance operating flights between Duluth and Louisville.

  • 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 8075 reviews
8.5Crew
7.9Comfort
7.2Food
7.8Entertainment
8.1Boarding
Airline reviews

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

10.0 ExcellentJay, Jan 2026
ATL - BDL
Read more Delta reviews

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

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

Information on your arrival and departure airports

Duluth (DLH)
Louisville (SDF)