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Cheap flights from Duluth to Louisville from $381

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Duluth to Louisville departing on 6/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Duluth to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:25 pm - 11:59 pm
DLH
-
SDF
4h 34m
1 stop
United Airlines Logo
5:50 pm - 11:23 pm
SDF
-
DLH
6h 33m
1 stop
$381United Airlines
Fri, Jun 26 - Tue, Jun 30
United Airlines Logo
6:00 am - 1:15 pm
DLH
-
SDF
6h 15m
1 stop
United Airlines Logo
7:32 pm - 12:53 am
SDF
-
DLH
6h 21m
1 stop
$423United Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
6:00 am - 1:15 pm
DLH
-
SDF
6h 15m
1 stop
United Airlines Logo
3:50 pm - 10:44 am
SDF
-
DLH
19h 54m
2 stops
$557United Airlines
Sat, Oct 24 - Tue, Oct 27
United Airlines Logo
6:25 pm - 10:23 am
DLH
-
SDF
14h 58m
2 stops
United Airlines Logo
5:50 pm - 11:23 pm
SDF
-
DLH
6h 33m
1 stop
$658United Airlines
Fri, Jun 26 - Tue, Jun 30
Delta Logo
11:50 am - 5:15 pm
DLH
-
SDF
4h 25m
1 stop
Delta Logo
6:49 am - 11:04 am
SDF
-
DLH
5h 15m
1 stop
$836Delta
Thu, Jul 9 - Mon, Jul 13
Delta Logo
5:00 am - 4:47 pm
DLH
-
SDF
10h 47m
2 stops
Delta Logo
6:49 am - 11:04 am
SDF
-
DLH
5h 15m
1 stop
$1,471Delta
Thu, Jul 9 - Mon, Jul 13
Delta Logo
11:48 am - 9:15 pm
DLH
-
SDF
8h 27m
2 stops
Delta Logo
5:26 pm - 10:50 pm
SDF
-
DLH
6h 24m
2 stops
$2,079Delta
Fri, Jun 26 - Tue, Jun 30

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United Airlines flights from Duluth to Louisville

Our best United Airlines deals on Duluth to Louisville flight tickets
United Airlines
Jun 26
DLH6:25 pmDuluth Intl
4h 34m
1 stop
SDF11:59 pmLouisville Intl
Jun 30
SDF5:50 pmLouisville Intl
6h 33m
1 stop
DLH11:23 pmDuluth Intl
$381
United Airlines
Oct 24
DLH6:00 amDuluth Intl
6h 15m
1 stop
SDF1:15 pmLouisville Intl
Oct 27
SDF7:32 pmLouisville Intl
6h 21m
1 stop
DLH12:53 amDuluth Intl
$423
United Airlines
Jun 18
DLH3:03 pmDuluth Intl
4h 20m
1 stop
SDF8:23 pmLouisville Intl
Jun 25
SDF7:19 amLouisville Intl
4h 24m
1 stop
DLH10:43 amDuluth Intl
$484

Delta flights from Duluth to Louisville

Our best Delta deals on Duluth to Louisville flight tickets
Delta
Jul 9
DLH11:50 amDuluth Intl
4h 25m
1 stop
SDF5:15 pmLouisville Intl
Jul 13
SDF6:49 amLouisville Intl
5h 15m
1 stop
DLH11:04 amDuluth Intl
$836
Delta
Jul 9
DLH5:00 amDuluth Intl
10h 47m
2 stops
SDF4:47 pmLouisville Intl
Jul 13
SDF6:49 amLouisville Intl
5h 15m
1 stop
DLH11:04 amDuluth Intl
$1,471
Delta
Jun 26
DLH11:48 amDuluth Intl
8h 27m
2 stops
SDF9:15 pmLouisville Intl
Jun 30
SDF5:26 pmLouisville Intl
6h 24m
2 stops
DLH10:50 pmDuluth Intl
$2,079

momondo 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, momondo users made 832,500 searches. Data last updated June 15, 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

Fri 6/26

6:25 pm-11:59 pm

1 stop4h 34m

Louisville Intl

Tue 6/30

5:50 pm-11:23 pm

1 stop6h 33m

$381

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Sat 10/24

6:00 am-1:15 pm

1 stop6h 15m

Louisville Intl

Tue 10/27

7:32 pm-12:53 am

1 stop6h 21m

$423

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Sat 10/24

6:00 am-1:15 pm

1 stop6h 15m

Louisville Intl

Tue 10/27

3:50 pm-10:44 am

2 stops19h 54m

$557

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Fri 6/26

6:25 pm-10:23 am

2 stops14h 58m

Louisville Intl

Tue 6/30

5:50 pm-11:23 pm

1 stop6h 33m

$658
Quickest round-trip

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Thu 7/9

11:50 am-5:15 pm

1 stop4h 25m

Louisville Intl

Mon 7/13

6:49 am-11:04 am

1 stop5h 15m

$836

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Thu 7/9

5:00 am-4:47 pm

2 stops10h 47m

Louisville Intl

Mon 7/13

6:49 am-11:04 am

1 stop5h 15m

$1,471

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Fri 6/26

11:48 am-9:15 pm

2 stops8h 27m

Louisville Intl

Tue 6/30

5:26 pm-10:50 pm

2 stops6h 24m

$2,079

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Louisville from

How to get the cheapest flight ticket from Duluth to Louisville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

How many flights depart from Duluth to Louisville on average per week?

As of June 2026, 7 flights take off from Duluth and land in Louisville each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.

When to book flights from Duluth to Louisville

Are you open to changing your travel dates? Check out the ideal times to fly from Duluth to Louisville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Duluth to Louisville (DLH to SDF) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Duluth to Louisville

Fastest flight time

4h 20m

Direct flights

None
The fastest flight from Duluth to Louisville takes 4h 20m
There are no direct flights from Duluth to Louisville. There are no popular flight routes from Duluth to Louisville.
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Frequently asked questions about flying from Duluth to Louisville

  • How far is Duluth Intl to Louisville Intl by plane?

    The straight-line distance from Duluth Intl to Louisville Intl is 671.6 mi. Flights usually cover this in 4h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Duluth Intl Airport to Louisville Intl Airport?

    Prices for flights from Duluth Intl Airport to Louisville Intl Airport refresh daily.

  • How old do you have to be to fly from Duluth Intl Airport to Louisville Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Duluth Intl Airport to Louisville Intl Airport.

  • What documentation or ID do you need to fly to Louisville Intl Airport?

    The travel and health documents you'll need for your trip to Louisville Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Louisville Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
West Baden Springs
Bardstown
Shepherdsville
New Albany
Elizabeth
Charlestown
Brandenburg
Corydon
Georgetown
Springfield

Why use momondo?

Why should I use momondo to find a flight deal from Duluth to Louisville?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Louisville from Duluth.

Can I find flights from Duluth to Louisville with flexible booking policies on momondo?

All flight searches from Duluth to Louisville on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Duluth to Louisville?

momondo helps you find the best flight between Duluth and Louisville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Duluth to Louisville right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Duluth to Louisville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Louisville and let you know when they change.

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