SDF - DLH

$273 Find Cheap Flights from Louisville to Duluth

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Louisville to Duluth departing on 6/15. 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 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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Everything you should know

Cheapest round-trip
$393
Delta
Fri 5/22Mon 5/25
SDF - DLH • 1 stop
Cheapest one-way
$273
Delta
Mon 6/15
SDF - DLH • 1 stop
Top airlines
Cheapest • from $393 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Louisville and Duluth. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $492 (round-trip)
Shortest trip • 4h 55m (one-way)
Insights
Insights
Insights
Insights
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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 Duluth!
Flight Deals
Booking Insights
Flight 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, May 22 - Mon, May 25
Delta Logo
4:23 pm - 7:31 pm
SDF
-
DLH
4h 08m
1 stop
Delta Logo
4:30 pm - 11:52 pm
DLH
-
SDF
6h 22m
1 stop
$393Delta
Sun, Jun 28 - Mon, Jul 6
Delta Logo
5:59 pm - 10:50 pm
SDF
-
DLH
5h 51m
1 stop
Delta Logo
4:30 pm - 12:32 am
DLH
-
SDF
7h 02m
2 stops
$419Delta
Fri, May 22 - Mon, May 25
Delta Logo
4:23 pm - 7:31 pm
SDF
-
DLH
4h 08m
1 stop
Delta Logo
4:30 pm - 12:25 am
DLH
-
SDF
6h 55m
2 stops
$434Delta
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
10:07 am - 2:27 pm
SDF
-
DLH
5h 20m
1 stop
United Airlines Logo
6:57 pm - 11:59 pm
DLH
-
SDF
4h 02m
1 stop
$519United Airlines
Thu, Aug 6 - Mon, Aug 10
Delta Logo
7:49 pm - 10:50 pm
SDF
-
DLH
4h 01m
1 stop
Delta Logo
4:20 pm - 10:50 pm
DLH
-
SDF
5h 30m
1 stop
$546Delta
Thu, Aug 6 - Mon, Aug 10
United Airlines Logo
7:55 pm - 11:38 pm
SDF
-
DLH
4h 43m
1 stop
United Airlines Logo
6:25 pm - 10:14 am
DLH
-
SDF
14h 49m
2 stops
$657United Airlines
Sun, Jun 28 - Mon, Jul 6
Delta Logo
2:19 pm - 10:50 pm
SDF
-
DLH
9h 31m
2 stops
Delta Logo
4:30 pm - 12:32 am
DLH
-
SDF
7h 02m
2 stops
$669Delta
Sun, Jun 28 - Mon, Jul 6
United Airlines Logo
5:20 am - 10:43 am
SDF
-
DLH
6h 23m
1 stop
United Airlines Logo
6:25 pm - 12:05 am
DLH
-
SDF
4h 40m
1 stop
$677United Airlines
Sat, Apr 25 - Wed, Apr 29
United Airlines Logo
2:30 pm - 10:39 am
SDF
-
DLH
21h 09m
2 stops
United Airlines Logo
6:57 pm - 11:59 pm
DLH
-
SDF
4h 02m
1 stop
$698United Airlines
Thu, Aug 6 - Mon, Aug 10
Delta Logo
10:00 am - 7:26 pm
SDF
-
DLH
10h 26m
2 stops
Delta Logo
12:00 pm - 10:36 pm
DLH
-
SDF
9h 36m
2 stops
$859Delta
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.

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 Delta ($393) and United Airlines ($519).

Good to know

Cheapest flight$273
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 $273 for a one-way ticket and $393 for a round-trip.

  • 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 9581 reviews
7.7Boarding
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
Airline reviews

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

10.0 ExcellentHartaj, Apr 2026
SFO - RDU
Read more United Airlines reviews

It was a red-eye, but the flight felt surprisingly quick. The seats were very comfortable, and that made resting much easier. I also want to thank the gentleman seated next to me, who graciously moved so my mom could sit beside me. We slept almost the entire way. The cabin crew was respectful in not disturbing us, while also being courteous and professional throughout. Thank you, United.

Packed in plane small uncomfortable seats elbow to elbow nobody wants to be in that situation for the money they paid

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

Checking in united could not figure out my star alliance gold. Baggage did not get marked priority and didn't receive boarding passes. When got to SFO lounge personal fixed everything Immediately

Very comfortable flight, snacks and drinks were good, good communication from crew. Could have used a little more information on timing of boarding for group 5

Great flight. Got to watch a movie. Smooth flight and early arrival at ORD.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

It was better than excellent. The staff in Mason City were great. The young woman that pushed my wheelchair did more than could be expected of her. She came from India 17 years ago. I don't remember her name.

After arriving in Chicago, we were taxiing for 1.5 hours with infrequent and untruthful updates about the amount of time it would take to arrive at the gate. Minimally, the team could have provided timing expectations that were more truthful, especially one their original expectations were not met.

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

Information on your arrival and departure airports