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$302+ Cheap flights from Duluth to Louisville (DLH - SDF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
DLH — SDF
Jun 18 — Jun 251
Thu 6/18
Thu 6/25
1 adult, Economy
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Cheap flight deals from Duluth to Louisville

Cheapest flights from Duluth to Louisville
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 May 19, 2026.

This United Airlines deal was found by Cheapflights users on 5/15. 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.
Sat 5/3011:18 am
DLH
-
SDF
1 stop6h 44m
United Airlines
Wed 6/37:47 pm
SDF
-
DLH
1 stop4h 36m
United Airlines
Deal found 5/15$408
This United Airlines deal was found by Cheapflights users on 5/19. 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.
Mon 6/1511:18 am
DLH
-
SDF
1 stop6h 42m
United Airlines
Sun 6/217:47 pm
SDF
-
DLH
1 stop4h 36m
United Airlines
Deal found 5/19$497
This United Airlines deal was found by Cheapflights users on 5/18. 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.
Tue 6/23:03 pm
DLH
-
SDF
1 stop4h 20m
United Airlines
Sat 6/65:51 pm
SDF
-
DLH
1 stop6h 32m
United Airlines
Deal found 5/18$549
This United Airlines deal was found by Cheapflights users on 5/19. 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 5/287:03 am
DLH
-
SDF
1 stop5h 32m
United Airlines
Thu 5/285:51 pm
SDF
-
DLH
1 stop5h 00m
United Airlines
Deal found 5/19$822

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 May 19, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$408
(United Airlines)

One-way from

$302
(United Airlines)
Provider with most accurate pricing for Duluth Intl-Louisville Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Duluth Intl-Louisville Intl flights.
Search Deals
From Duluth Intl to Louisville Intl
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One-way flight from Duluth Intl to Louisville Intl
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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 2,558,603 searches. Data last updated May 19, 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

Price

Cheapest round-trip

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Sat 5/30

11:18 am-7:02 pm

1 stop6h 44m

Louisville Intl

Wed 6/3

7:47 pm-11:23 pm

1 stop4h 36m

$408

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Mon 6/15

11:18 am-7:00 pm

1 stop6h 42m

Louisville Intl

Sun 6/21

7:47 pm-11:23 pm

1 stop4h 36m

$497
Quickest round-trip

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Tue 6/2

3:03 pm-8:23 pm

1 stop4h 20m

Louisville Intl

Sat 6/6

5:51 pm-11:23 pm

1 stop6h 32m

$549
Cheapest one-way
Quickest one-way

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 7/8

6:25 pm-11:59 pm

1 stop4h 34m

$302

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Sat 6/6

7:06 am-1:35 pm

1 stop5h 29m

$354

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/17

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Duluth-Louisville flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Duluth-Louisville flight deals on Cheapflights vs. Expedia <90% 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 Expedia the most. Expedia 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.
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.

  • How long is the flight from Duluth to Louisville?

    For as low as $408, United Airlines can have you in Louisville from Duluth in 6h 44m. Duluth and Louisville are separated by a distance of 682 mi.

  • Can I find deals for flights from Duluth to Louisville that include hotel bookings?

    Yes. In addition to deals on Duluth to Louisville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Duluth to Louisville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Duluth to Louisville.

  • Can I find deals for business class flights from Duluth to Louisville?

    Yes. Cheapflights offers flight deals from Duluth to Louisville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
Shepherdsville
Elizabethtown
Corydon
Jeffersonville
Bardstown

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