$428+ Cheap flights from Duluth to Louisville (DLH - SDF)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — SDF
Oct 28 — Nov 41
Round-trip
1 adult, Economy
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Find cheap flights from Duluth to Louisville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Duluth to Louisville
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Best
Last-minute
Cheapest flights from Duluth to LouisvilleExplore the most affordable flight options available from Duluth to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.
Explore the most affordable flight options available from Duluth to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 28, 2026.
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:06 pm -
1 stop6h 24m
Thu 11/127:00 am -
1 stop4h 41m
Deal found 9/24![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 15m
Mon 10/127:00 am -
1 stop4h 42m
Deal found 9/23![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:14 am -
2 stops6h 40m
Thu 11/126:00 am -
2 stops10h 45m
Deal found 9/24![Delta logo]()
$669
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 am -
1 stop3h 57m
Thu 10/157:00 am -
1 stop5h 44m
Deal found 9/26![Delta logo]()
$726
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:21 pm -
2 stops6h 38m
Mon 10/127:55 am -
2 stops8h 46m
Deal found 9/23![Delta logo]()
$1,139
Best flights from Duluth to LouisvilleDiscover carefully curated flight deals from Duluth to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
Discover carefully curated flight deals from Duluth to Louisville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 28, 2026.
This United Airlines deal was found by Cheapflights users on 9/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/277:15 am -
1 stop5h 05m
Sat 1/3010:15 am -
1 stop5h 09m
Deal found 9/27![United Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 15m
Mon 10/127:00 am -
1 stop4h 42m
Deal found 9/23![United Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/53:06 pm -
1 stop6h 24m
Thu 11/129:10 am -
2 stops26h 31m
Deal found 9/24![United Airlines logo]()
$584
Last-minute flights from Duluth to LouisvilleDiscover last-minute flight deals from Duluth to Louisville. Data last updated September 28, 2026 and is based on user searches.
Discover last-minute flight deals from Duluth to Louisville. Data last updated September 28, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:00 am -
1 stop6h 15m
Mon 10/127:00 am -
1 stop4h 42m
Deal found 9/23![United Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/84:21 pm -
2 stops6h 38m
Mon 10/127:55 am -
2 stops8h 46m
Deal found 9/23![Delta logo]()
$1,139
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/117:00 am -
1 stop3h 57m
Thu 10/157:00 am -
1 stop5h 44m
Deal found 9/26![Delta logo]()
$726
Find flight deals from Duluth to Louisville
Discover tips and strategies to find the most affordable flight options for your journey from Duluth (DLH) to Louisville (SDF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $428 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Duluth to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 28, 2026.
Use the filters below to find and compare flights from Duluth to Louisville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
DuluthLouisville
DLH Duluth Intl - SDF Louisville Intl
DLHSDF
Duluth Intl
Wed 1/27
7:15 am-1:20 pm
1 stop5h 05m
Louisville Intl
Sat 1/30
10:15 am-2:24 pm
1 stop5h 09m
$428
DuluthLouisville
DLH Duluth Intl - SDF Louisville Intl
DLHSDF
Duluth Intl
Thu 10/8
6:00 am-1:15 pm
1 stop6h 15m
Louisville Intl
Mon 10/12
7:00 am-10:42 am
1 stop4h 42m
$464
DuluthLouisville
DLH Duluth Intl - SDF Louisville Intl
DLHSDF
Duluth Intl
Thu 11/5
3:06 pm-10:30 pm
1 stop6h 24m
Louisville Intl
Thu 11/12
9:10 am-10:41 am
2 stops26h 31m
$584
Sorted by cheapest first
Compare providers for flights from Duluth to Louisville
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Duluth to Louisville in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Duluth-Louisville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Duluth-Louisville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Duluth-Louisville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Duluth-Louisville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Duluth-Louisville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Duluth to Louisville
Have a flexible travel schedule? Discover the best time to fly to Louisville from Duluth with our price prediction graph.
DLH-SDF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Related info for your journey
Find useful and relevant information for your journey from Duluth to Louisville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Louisville?
Book flights to Louisville if you plan to visit one of these locationsShepherdsville
Elizabethtown
Jeffersonville
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