What is the cheapest airline that flies from Louisville Intl to Duluth Intl?

Delta is the most popular carrier operating from Louisville Intl to Duluth Intl

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

Prices for flights from Louisville Intl Airport to Duluth Intl Airport were last updated today.

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

As of August 2025, there is 1 operator available to choose from for flights from Louisville Intl Airport to Duluth Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Duluth Intl Airport.

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

The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$254 Cheap Flights from Louisville to Duluth in 2025

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Find the cheapest flights from Louisville to Duluth

Round-trip

One-way

Cheap round-trip flights

7:00 am - 10:45 amSDF-DLH

4h 45m1 stop

3:07 pm - 9:59 amDLH-SDF

17h 52m1 stop

$406United Airlines

Find Deal

Sun, Oct 12 - Fri, Oct 17

7:00 am - 10:45 amSDF-DLH

4h 45m1 stop

3:07 pm - 5:13 pmDLH-SDF

25h 06m1 stop

$436United Airlines

Find Deal

Sun, Oct 12 - Fri, Oct 17

7:00 am - 10:45 amSDF-DLH

4h 45m1 stop

3:07 pm - 8:48 pmDLH-SDF

28h 41m2 stops

$492United Airlines

Find Deal

Sun, Oct 12 - Fri, Oct 17

7:00 am - 11:22 amSDF-DLH

5h 22m1 stop

12:02 pm - 11:59 pmDLH-SDF

10h 57m2 stops

$494Delta

Find Deal

Sun, Oct 12 - Fri, Oct 17

2:33 pm - 11:42 pmSDF-DLH

10h 09m2 stops

4:10 pm - 11:59 pmDLH-SDF

6h 49m2 stops

$639Delta

Find Deal

Sun, Oct 12 - Fri, Oct 17

United Airlines flights from Louisville to Duluth

Our best United Airlines deals on Louisville to Duluth flight tickets

United Airlines

Oct 12

SDF7:00 amLouisville Intl

4h 45m

1 stop

DLH10:45 amDuluth Intl

Oct 17

DLH3:07 pmDuluth Intl

17h 52m

1 stop

SDF9:59 amLouisville Intl

$406

Find similar

United Airlines

Oct 12

SDF7:00 amLouisville Intl

4h 45m

1 stop

DLH10:45 amDuluth Intl

Oct 17

DLH3:07 pmDuluth Intl

25h 06m

1 stop

SDF5:13 pmLouisville Intl

$436

Find similar

United Airlines

Sep 1

SDF9:05 amLouisville Intl

6h 30m

1 stop

DLH2:35 pmDuluth Intl

Sep 5

DLH8:00 amDuluth Intl

25h 00m

1 stop

SDF10:00 amLouisville Intl

$448

Find similar

Delta flights from Louisville to Duluth

Our best Delta deals on Louisville to Duluth flight tickets

Delta

Aug 29

SDF7:34 pmLouisville Intl

4h 12m

1 stop

DLH10:46 pmDuluth Intl

Sep 6

DLH5:10 amDuluth Intl

5h 48m

1 stop

SDF11:58 amLouisville Intl

$313

Find similar

Delta

Aug 29

SDF7:34 pmLouisville Intl

4h 12m

1 stop

DLH10:46 pmDuluth Intl

Sep 6

DLH4:19 pmDuluth Intl

6h 37m

2 stops

SDF11:56 pmLouisville Intl

$364

Find similar

Delta

Oct 12

SDF7:00 amLouisville Intl

5h 22m

1 stop

DLH11:22 amDuluth Intl

Oct 17

DLH12:02 pmDuluth Intl

10h 57m

2 stops

SDF11:59 pmLouisville Intl

$494

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Sun 10/12

7:00 am-10:45 am

1 stop4h 45m

Duluth Intl

Fri 10/17

3:07 pm-9:59 am

1 stop17h 52m

$406

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Sun 10/12

7:00 am-10:45 am

1 stop4h 45m

Duluth Intl

Fri 10/17

3:07 pm-5:13 pm

1 stop25h 06m

$436

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Sun 10/12

7:00 am-10:45 am

1 stop4h 45m

Duluth Intl

Fri 10/17

3:07 pm-8:48 pm

2 stops28h 41m

$492

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Sun 10/12

7:00 am-11:22 am

1 stop5h 22m

Duluth Intl

Fri 10/17

12:02 pm-11:59 pm

2 stops10h 57m

$494

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Sun 10/12

2:33 pm-11:42 pm

2 stops10h 09m

Duluth Intl

Fri 10/17

4:10 pm-11:59 pm

2 stops6h 49m

$639

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Mon 9/1

7:34 pm-10:46 pm

1 stop4h 12m

$369

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Mon 9/1

6:00 am-3:39 pm

2 stops10h 39m

$375

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Louisville to Duluth

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

Prices

Airlines

What is the cheapest day to depart on your flight to Duluth?

The cheapest day to depart from Louisville to Duluth is on a Thursday when prices can be found for as low as $273. On the other hand, Saturday is the most expensive day to depart from Louisville because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $292.

When to book flights from Louisville to Duluth

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

Estimated round-trip price

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

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

Direct flights	None

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

Search flight deals

How far is Louisville Intl to Duluth Intl by plane?
The distance between Louisville Intl and Duluth Intl is about 671.6 mi. By plane, this route typically takes 4h 45m.
When did momondo last update prices for flights from Louisville Intl Airport to Duluth Intl Airport?
Prices for flights from Louisville Intl Airport to Duluth Intl Airport were last updated today.
How many operators does momondo search for flights from Louisville Intl Airport to Duluth Intl Airport?
As of August 2025, there is 1 operator available to choose from for flights from Louisville Intl Airport to Duluth Intl Airport.
How old do you have to be to fly from Louisville Intl Airport to Duluth Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to Duluth Intl Airport.
What documentation or ID do you need to fly to Duluth Intl Airport?
The necessary travel and health documents for your Duluth Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Louisville to Duluth?
Based on momondo bookings for flights between Louisville and Duluth, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Louisville to Duluth

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $243	Free Cancellation	Rating 7.4 8,943 reviews		Search United Airlines flights

Two Harbors

Hayward

Superior

Cloquet

Why use momondo?

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

Finding the right flight to Duluth from Louisville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Duluth quick and easy, saving you time and money.

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

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

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

Once you have performed a search for Louisville to Duluth flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Duluth from Louisville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Duluth trip

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Cheap flights from Louisville to Duluth from $369

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to Duluth departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Louisville to Duluth

Cheap round-trip flights

Cheap one-way flights

United Airlines flights from Louisville to Duluth

Our best United Airlines deals on Louisville to Duluth flight tickets

Delta flights from Louisville to Duluth

Our best Delta deals on Louisville to Duluth flight tickets

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How to get the cheapest flight ticket from Louisville to Duluth

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

What is the cheapest day to depart on your flight to Duluth?

What is the cheapest airline that flies from Louisville Intl to Duluth Intl?

Delta is the most popular carrier operating from Louisville Intl to Duluth Intl

When to book flights from Louisville to Duluth

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

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

Direct flights

How far is Louisville Intl to Duluth Intl by plane?

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

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

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

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

What is the most popular airline from Louisville to Duluth?

Best airlines flying from Louisville to Duluth

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

Traveling to a place near Duluth?

Why use momondo?

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

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

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

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

An easier way to manage your Duluth trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Minnesota