SDF - DLH

$375 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 10/13. 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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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

Mon, Oct 13 - Fri, Oct 17
United Airlines Logo
7:20 pm - 10:45 amSDF-DLH
16h 25m1 stop
United Airlines Logo
3:07 pm - 9:59 amDLH-SDF
17h 52m1 stop
$375United Airlines
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Booking Insights

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.

What is the most popular layover airport when flying from Louisville to Duluth?

Percentage of 1-stop round-trip flights from Louisville to Duluth chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 68% of KAYAK users who clicked on 1-stop flights from Louisville to Duluth picked an itinerary connecting there.

What is the cheapest layover airport when flying from Louisville to Duluth?

Average round-trip price for 1-stop flights from Louisville to Duluth clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Minneapolis (MSP) offer the most affordable fares, with an average round-trip price of $368.

Which layover airport offers the shortest total travel time from Louisville to Duluth?

Shortest average total travel time for 1-stop one-way flights from Louisville to Duluth via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Minneapolis (MSP) for the shortest journey. The average one-way travel time for flights connecting there is 4h 16m.

Which layover airport has the quickest connection when flying from Louisville to Duluth?

Average layover duration at different layover airports for 1-stop one-way flights from Louisville to Duluth, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Minneapolis (MSP) often has the shortest layovers from Louisville to Duluth, with an average of 1h 24m.

Good to know

Cheapest flight$375
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 $375 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 is the only airline alliance operating flights between Louisville and Duluth.

  • 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 8915 reviews
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
7.3Comfort
Airline reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

8.0 ExcellentBill, Aug 2025IAH - LAX
Read more United Airlines reviews

Plane was crowded and even when we hit altitude, the plane was hot, not enough air flow.

Flight attendant in first class gave poor service (like he didn't want to be there) and food was awful. We sat waiting for gate upon arrival over 45 mins.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

This flight was perfect. No complaints and only the highest regard for the crew and ground staff and how they executed perfectly. I fly a lot with United and would request predictability and transparency in their operations instead of last minute changes.

This is for UA2274 from Houston to Sacramento. The flight was delayed arriving due to mechanical issues so we left about 3 hours later than scheduled. When boarding the plane the temperature inside was excessive - likely close to 100. Pilot apologized and said it was going to improve at altitude, which it did. But before that I honestly thought there might have been more delays removing passengers made ill from the heat. We were delayed leaving due to another mechanical issue. There was not water on the plane due to a panel that was not secured. They did that quickly, but the combination of mechanical issues was rather disturbing and did not reflect well on United.

1. when we went to check in, our 2 first class seats had been CANCELED and the flight was sold out. This was done without our prior knowledge. It was all we could do to restore one first class seat for my wife and I flew economy. 2, Our flight home was scheduled to leave at 10:30 pm. Due to tsunami warnings, the roads were closed and our flight status was uncertain as to whether it would leave as scheduled. It was announced that it would now leave at 11:20 pm and the roads were now open since the tsunami had come and gone. We made a mad dash to the airport and checked in. Delays were announced at 12:30 pm, 1:30 am, 2:30 am and at 3:30 am it was canceled. Since this was a flight due to natural (tsunami) causes, there was no compensation. We were told to return at 1:00 pm the next day and our baggage would be kept on the plane since the same plane was going to leave at 1:00 pm. We had to return to our hotel for the rest of the night. The same plane did not leave at 1:00 pm and our baggage was gone! All in all, it was a miserable performance by UA. Information was hard to obtain and no one knew what was going on and what was going to happen. Hundreds of passengers slept on the floor, chairs, etc. No food and no water was made available to the passengers. It was a situation where UA could care less what was going on. As a one million mile flyer, I had not experienced anything like this before and it was hugely disappointing!

Terrible. Delayed 7 hours, and cancelled the flight, leaving me stranded and out of pocket $500 for an alternative last minute flight

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

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

Information on your arrival and departure airports

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