SDF - DLH

$322 Find Cheap Flights from Louisville to Duluth

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Duluth departing on 10/3. 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 Duluth

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

Cheap Flights from Louisville to Duluth (SDF-DLH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Louisville to Duluth 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 Louisville to Duluth

Fri, Oct 3 - Fri, Oct 10
United Airlines Logo
8:45 am - 2:32 pmSDF-DLH
6h 47m1 stop
United Airlines Logo
3:07 pm - 10:30 pmDLH-SDF
6h 23m1 stop
$322United Airlines
Find Deal
Wed, Aug 20 - Fri, Aug 22
United Airlines Logo
7:00 am - 10:45 amSDF-DLH
4h 45m1 stop
United Airlines Logo
9:45 am - 10:00 amDLH-SDF
23h 15m1 stop
$374United Airlines
Find Deal
Wed, Aug 20 - Fri, Aug 22
United Airlines Logo
7:00 am - 10:45 amSDF-DLH
4h 45m1 stop
United Airlines Logo
3:10 pm - 1:30 pmDLH-SDF
21h 20m2 stops
$458United Airlines
Find Deal
Fri, Oct 3 - Fri, Oct 10
Delta Logo
7:25 pm - 11:44 pmSDF-DLH
5h 19m1 stop
Delta Logo
12:00 pm - 9:41 pmDLH-SDF
8h 41m2 stops
$527Delta
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Thu, Jul 3 - Mon, Jul 7
Delta Logo
6:05 am - 10:16 amSDF-DLH
5h 11m1 stop
Delta Logo
6:03 pm - 11:27 pmDLH-SDF
4h 24m1 stop
$578Delta
Find Deal
Wed, Aug 20 - Fri, Aug 22
Delta Logo
10:24 am - 3:39 pmSDF-DLH
6h 15m2 stops
Delta Logo
4:19 pm - 11:56 pmDLH-SDF
6h 37m2 stops
$678Delta
Find Deal
Thu, Jul 3 - Mon, Jul 7
Delta Logo
6:05 am - 10:16 amSDF-DLH
5h 11m1 stop
Delta Logo
5:15 am - 2:25 pmDLH-SDF
8h 10m2 stops
$794Delta
Find Deal
Thu, Jul 3 - Mon, Jul 7
Delta Logo
7:50 am - 5:39 pmSDF-DLH
10h 49m2 stops
Delta Logo
5:15 am - 2:25 pmDLH-SDF
8h 10m2 stops
$1,149Delta
Find Deal
Useful Info

KAYAK's insights & trends for Louisville to Duluth flights

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

Which airlines provide the cheapest flights from Louisville to Duluth?

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 Louisville to Duluth were found on United Airlines ($322) and Delta ($527).

Good to know

Cheapest flight$322
Flight from Louisville to Duluth

When to book flights from Louisville to Duluth

Are your dates flexible? Find out the best times to travel from Louisville to Duluth 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 Louisville to Duluth

  • What is the cheapest flight from Louisville to Duluth?

    In the last 3 days, the lowest price for a flight from Louisville to Duluth was $322 for a round-trip ticket.

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

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

  • Which airports will I be using when flying from Louisville to Duluth?

    Louisville airport is called Louisville Intl and the only airport in Duluth is Duluth Intl.

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

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

  • Which airline alliances offer flights from Louisville to Duluth?

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

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

    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 Louisville to Duluth.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Duluth from Louisville 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 Louisville to Duluth?

    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 Duluth with an airline and back to Louisville with another airline. Booking your flights between Louisville and DLH 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 Louisville to Duluth?

    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 Duluth from Louisville 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 Louisville to Duluth

 
See real verified KAYAK customer reviews for airlines flying from Louisville to Duluth. 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 Louisville to Duluth? 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.
7.4
United AirlinesOverall score based on 8810 reviews
7.0Entertainment
7.3Comfort
8.1Crew
7.7Boarding
6.6Food
Airline reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

2.0 MediocreJack, Jun 2025SAT - IAH
Read more United Airlines reviews

Gate agent did not hold flight for connection, provided no assistance to get new flight

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

United airlines, mediocre at best. No issues , nothing great . Worked for me

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

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

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