How do I get Price Alerts for flights from Duluth to Louisville?

Confirm your travel details to search for the latest offers for flights from Duluth to Louisville . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How can I save money on flights from Duluth to Louisville with momondo?

By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.

How does momondo find its flight prices?

We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

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 many operators does momondo search for flights from Duluth Intl Airport to Louisville Intl Airport?

The number of operators available for flights from Duluth Intl Airport to Louisville Intl Airport is 1 as of December 2025.

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.

$307 Cheap Flights from Duluth to Louisville in 2025/26

1 adult

0 bags

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Find the cheapest flights from Duluth to Louisville

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Cheap round-trip flights

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5:00 am - 11:55 am

DLH

SDF

5h 55m1 stop

6:36 am - 10:57 am

SDF

DLH

5h 21m1 stop

$418Delta

Fri, Apr 10 - Sun, Apr 19

3:05 pm - 8:28 pm

DLH

SDF

4h 23m1 stop

2:05 pm - 2:30 pm

SDF

DLH

25h 25m1 stop

$479United Airlines

Wed, Jan 21 - Sat, Jan 24

3:05 pm - 8:28 pm

DLH

SDF

4h 23m1 stop

8:29 am - 2:30 pm

SDF

DLH

7h 01m1 stop

$489United Airlines

Wed, Jan 21 - Sat, Jan 24

7:50 am - 1:13 pm

DLH

SDF

4h 23m1 stop

6:11 pm - 10:55 pm

SDF

DLH

5h 44m1 stop

$493United Airlines

Tue, Dec 23 - Tue, Dec 30

7:50 am - 1:13 pm

DLH

SDF

4h 23m1 stop

6:11 pm - 10:55 pm

SDF

DLH

5h 44m1 stop

$527United Airlines

Tue, Dec 23 - Tue, Dec 30

3:05 pm - 8:28 pm

DLH

SDF

4h 23m1 stop

3:30 pm - 2:30 pm

SDF

DLH

24h 00m2 stops

$531United Airlines

Wed, Jan 21 - Sat, Jan 24

7:50 am - 1:13 pm

DLH

SDF

4h 23m1 stop

9:05 am - 2:28 pm

SDF

DLH

6h 23m1 stop

$542United Airlines

Tue, Dec 23 - Tue, Dec 30

3:05 pm - 8:28 pm

DLH

SDF

4h 23m1 stop

2:10 pm - 2:30 pm

SDF

DLH

25h 20m2 stops

$544United Airlines

Wed, Jan 21 - Sat, Jan 24

3:05 pm - 8:28 pm

DLH

SDF

4h 23m1 stop

9:50 am - 2:30 pm

SDF

DLH

29h 40m2 stops

$546United Airlines

Wed, Jan 21 - Sat, Jan 24

5:00 am - 11:55 am

DLH

SDF

5h 55m1 stop

6:36 am - 10:57 am

SDF

DLH

5h 21m1 stop

$568Delta

Fri, Apr 10 - Sun, Apr 19

United Airlines flights from Duluth to Louisville

Our best United Airlines deals on Duluth to Louisville flight tickets

United Airlines

Jan 21

DLH3:05 pmDuluth Intl

4h 23m

1 stop

SDF8:28 pmLouisville Intl

Jan 24

SDF2:05 pmLouisville Intl

25h 25m

1 stop

DLH2:30 pmDuluth Intl

$479

Find similar

United Airlines

Jan 21

DLH3:05 pmDuluth Intl

4h 23m

1 stop

SDF8:28 pmLouisville Intl

Jan 24

SDF8:29 amLouisville Intl

7h 01m

1 stop

DLH2:30 pmDuluth Intl

$489

Find similar

United Airlines

Dec 23

DLH7:50 amDuluth Intl

4h 23m

1 stop

SDF1:13 pmLouisville Intl

Dec 30

SDF6:11 pmLouisville Intl

5h 44m

1 stop

DLH10:55 pmDuluth Intl

$493

Find similar

Delta flights from Duluth to Louisville

Our best Delta deals on Duluth to Louisville flight tickets

Delta

Apr 10

DLH5:00 amDuluth Intl

5h 55m

1 stop

SDF11:55 amLouisville Intl

Apr 19

SDF6:36 amLouisville Intl

5h 21m

1 stop

DLH10:57 amDuluth Intl

$418

Find similar

Delta

Apr 10

DLH5:00 amDuluth Intl

5h 55m

1 stop

SDF11:55 amLouisville Intl

Apr 19

SDF6:36 amLouisville Intl

5h 21m

1 stop

DLH10:57 amDuluth Intl

$568

Find similar

Delta

Apr 10

DLH5:00 amDuluth Intl

5h 55m

1 stop

SDF11:55 amLouisville Intl

Apr 19

SDF2:15 pmLouisville Intl

6h 11m

2 stops

DLH7:26 pmDuluth Intl

$719

Find similar

Fly from

Fly to

Route

Depart

Return

Price

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Fri 4/10

5:00 am-11:55 am

1 stop5h 55m

Louisville Intl

Sun 4/19

6:36 am-10:57 am

1 stop5h 21m

$418

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 1/21

3:05 pm-8:28 pm

1 stop4h 23m

Louisville Intl

Sat 1/24

2:05 pm-2:30 pm

1 stop25h 25m

$479

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 1/21

3:05 pm-8:28 pm

1 stop4h 23m

Louisville Intl

Sat 1/24

8:29 am-2:30 pm

1 stop7h 01m

$489

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Tue 12/23

7:50 am-1:13 pm

1 stop4h 23m

Louisville Intl

Tue 12/30

6:11 pm-10:55 pm

1 stop5h 44m

$493

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Tue 12/23

7:50 am-1:13 pm

1 stop4h 23m

Louisville Intl

Tue 12/30

6:11 pm-10:55 pm

1 stop5h 44m

$527

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 1/21

3:05 pm-8:28 pm

1 stop4h 23m

Louisville Intl

Sat 1/24

3:30 pm-2:30 pm

2 stops24h 00m

$531

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Tue 12/23

7:50 am-1:13 pm

1 stop4h 23m

Louisville Intl

Tue 12/30

9:05 am-2:28 pm

1 stop6h 23m

$542

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 1/21

3:05 pm-8:28 pm

1 stop4h 23m

Louisville Intl

Sat 1/24

2:10 pm-2:30 pm

2 stops25h 20m

$544

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Wed 1/21

3:05 pm-8:28 pm

1 stop4h 23m

Louisville Intl

Sat 1/24

9:50 am-2:30 pm

2 stops29h 40m

$546

DuluthLouisville

DLH - SDF

DLHSDF

Duluth Intl

Fri 4/10

5:00 am-11:55 am

1 stop5h 55m

Louisville Intl

Sun 4/19

6:36 am-10:57 am

1 stop5h 21m

$568

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 23m
Direct flights	None

The fastest flight from Duluth to Louisville takes 4h 23m

There are no direct flights from Duluth to Louisville. There are no popular flight routes from Duluth to Louisville.

Search flight deals

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 23m, 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 many operators does momondo search for flights from Duluth Intl Airport to Louisville Intl Airport?
The number of operators available for flights from Duluth Intl Airport to Louisville Intl Airport is 1 as of December 2025.
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.
What is the most popular airline from Duluth to Louisville?
Based on momondo bookings for flights between Duluth and Louisville, the leading airline is Delta, making up 100% of the total bookings.

Best airlines flying from Duluth to Louisville

Compare and see reviews for airlines that fly from Duluth to Louisville with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $238	Free Cancellation	Rating 7.9 8,013 reviews		Search Delta flights

How do I get Price Alerts for flights from Duluth to Louisville?
Confirm your travel details to search for the latest offers for flights from Duluth to Louisville. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Duluth to Louisville with momondo?
By using tools like our “Price Calendar”, you can see the best day to fly round-trip for your travels. Our “Price Forecast” tool uses AI to predict whether you should purchase or hold off on booking for potentially cheaper prices. Explore shows you all flight options from a city or airport to build your own unique adventure. The Discover blog also provides valuable insights for saving money while booking your experience. After searching you can toggle on “Price Alerts” to track prices for your desired flight and book at the ideal moment.
How does momondo find its flight prices?
We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Springfield

Brandenburg

Georgetown

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.