How long is the flight from Louisville to Duluth?

Departing from Louisville to Duluth will take you 5h 21m. There are 682 mi between Louisville and Duluth.

In terms of precipitation, rainfall in Duluth ranges from 0.6 - 3.6 inches per month. August is typically the wettest month, when rainfall can reach 3.6 in. February is typically the driest time to visit Duluth when rainfall is around 0.6 in.

If weather is an important factor for your trip to Duluth, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 12.2 F).

Most accurate provider : When it comes to deals on Louisville-Duluth flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Duluth flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Duluth flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Louisville-Duluth flights, Cheapflights users trust eDreams the most. eDreams 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 Louisville-Duluth flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Louisville to Duluth?

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

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

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

$244+ Cheap Flights from Louisville to Duluth

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Find flight deals from Louisville to Duluth

Cheapest flights from Louisville to Duluth
Explore the most affordable flight options available from Louisville to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Thu 11/277:00 amSDF - DLH

1 stop4h 38mUnited Airlines

Sun 11/307:55 amDLH - SDF

1 stop13h 34mUnited Airlines

Deal found 10/27

$451

Best flights from Louisville to Duluth
Discover carefully curated flight deals from Louisville to Duluth that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 28, 2025.

Wed 4/156:36 amSDF - DLH

1 stop5h 21mDelta

Sat 4/1812:00 pmDLH - SDF

2 stops10h 57mDelta

Deal found 10/25

$244

Wed 4/157:30 amSDF - DLH

1 stop4h 14mUnited Airlines

Sat 4/183:14 pmDLH - SDF

1 stop4h 00mUnited Airlines

Deal found 10/26

$308

Thu 11/279:55 amSDF - DLH

2 stops29h 36mUnited Airlines

Sun 11/307:55 amDLH - SDF

1 stop13h 34mUnited Airlines

Deal found 10/27

$570

Last-minute flights from Louisville to Duluth
Discover last-minute flight deals from Louisville to Duluth. Data last updated October 28, 2025 and is based on user searches.

Thu 11/277:00 amSDF - DLH

1 stop4h 38mUnited Airlines

Sun 11/307:55 amDLH - SDF

1 stop13h 34mUnited Airlines

Deal found 10/27

$451

Cheap flight deals from Louisville to Duluth

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$244 (Delta)

Provider with most accurate pricing for Louisville Intl-Duluth Intl flight deals.

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Provider most trusted by Cheapflights users for Louisville Intl-Duluth Intl flights.

Search Deals

From Louisville Intl to Duluth Intl

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Wed 4/15

6:36 am-10:57 am

1 stop5h 21m

Duluth Intl

Sat 4/18

12:00 pm-11:57 pm

2 stops10h 57m

$244

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Wed 4/15

7:30 am-10:44 am

1 stop4h 14m

Duluth Intl

Sat 4/18

3:14 pm-8:14 pm

1 stop4h 00m

$308

LouisvilleDuluth

SDF - DLH

SDFDLH

Louisville Intl

Thu 11/27

9:55 am-2:31 pm

2 stops29h 36m

Duluth Intl

Sun 11/30

7:55 am-10:29 pm

1 stop13h 34m

$570

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/25

Compare providers for flights from Louisville to Duluth

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Duluth in October.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Louisville-Duluth flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Duluth flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Duluth flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Louisville-Duluth flights, Cheapflights users trust eDreams the most. eDreams 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 Louisville-Duluth 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 Louisville to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Louisville 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.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Duluth

What is the cheapest time of day to fly from SDF to DLH?

It’s typically best to fly out from Louisville to Duluth in the morning. Doing so could potentially save you 73% on the flight price compared to flying in the evening, which is usually more expensive.

Related info for your journey

How long is the flight from Louisville to Duluth?
Departing from Louisville to Duluth will take you 5h 21m. There are 682 mi between Louisville and Duluth.
Can I find deals for flights from Louisville to Duluth that include hotel bookings?
Yes. In addition to deals on Louisville to Duluth flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Louisville to Duluth?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisville to Duluth.
Can I find deals for business class flights from Louisville to Duluth?
Yes. Cheapflights offers flight deals from Louisville to Duluth 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

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$244+ Cheap flights from Louisville to Duluth (SDF - DLH)

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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Duluth with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Louisville to Duluth

Cheapest flights from Louisville to DuluthExplore the most affordable flight options available from Louisville to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Explore the most affordable flight options available from Louisville to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

Cheap flight deals from Louisville to Duluth

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisville to Duluth that are best for you.

Compare providers for flights from Louisville to Duluth

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 Louisville to Duluth in October.

Best time to book a flight from Louisville to Duluth

Have a flexible travel schedule? Discover the best time to fly to Duluth from Louisville with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Louisville to Duluth

What is the cheapest time of day to fly from SDF to DLH?

Related info for your journey

Find useful and relevant information for your journey from Louisville to Duluth. 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 Louisville to Duluth?

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

How can I find direct flights from Louisville to Duluth?

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

Traveling to a place near Duluth?

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Cheapest flights from Louisville to Duluth
Explore the most affordable flight options available from Louisville to Duluth. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.