HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Louisville

$349+ Cheap flights from Helena to Louisville (HLN - SDF)

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
HLN — SDF
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Helena to Louisville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Helena to Louisville

Discover tips and strategies to find the most affordable flight options for your journey from Helena (HLN) 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 September 11, 2025.

Round-trip from

$349
(United Airlines)
From Helena to Louisville Intl
Search Deals

Find flight deals from Helena to Louisville

Cheapest flights from Helena to Louisville
Explore the most affordable flight options available from Helena to Louisville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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 12/92:30 pmHLN - SDF
1 stop6h 06mUnited Airlines
Sat 12/133:33 pmSDF - HLN
1 stop7h 49mUnited Airlines
Deal found 9/10$349
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/91:06 pmHLN - SDF
2 stops8h 59mDelta
Sat 12/1312:37 pmSDF - HLN
2 stops25h 49mDelta
Deal found 9/9$387
This United Airlines deal was found by Cheapflights users on 9/10. 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 10/42:42 pmHLN - SDF
1 stop5h 48mUnited Airlines
Thu 10/99:01 amSDF - HLN
1 stop7h 08mUnited Airlines
Deal found 9/10$739
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/46:18 pmHLN - SDF
2 stops14h 13mAlaska Airlines
Thu 10/97:32 amSDF - HLN
2 stops12h 09mAlaska Airlines
Deal found 9/10$1,277

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helena 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 September 11, 2025.
Use the filters below to find and compare flights from Helena to Louisville that are best for you.

Fly from

Helena

Fly to

Louisville

Route

Depart

Return

Price

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

6:30 am-2:30 pm

1 stop6h 00m

Louisville Intl

Sat 12/13

3:33 pm-9:22 pm

1 stop7h 49m

$349

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

1:06 pm-12:05 am

2 stops8h 59m

Louisville Intl

Sat 12/13

12:37 pm-12:26 pm

2 stops25h 49m

$387

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 10/4

2:42 pm-10:30 pm

1 stop5h 48m

Louisville Intl

Thu 10/9

9:01 am-2:09 pm

1 stop7h 08m

$739

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 10/4

6:18 pm-10:31 am

2 stops14h 13m

Louisville Intl

Thu 10/9

7:32 am-5:41 pm

2 stops12h 09m

$1,277

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Best time to book a flight from Helena to Louisville

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

What is the cheapest month to book a flight from Helena to Louisville?

Currently, January is the cheapest month in which you can book a flight from Helena to Louisville (average of $299). Flying from Helena to Louisville in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Louisville

Get insights into the airlines that provide service to Louisville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Louisville. Reviews last updated September 11, 2025.
Get a feel of what it's like to fly with United Airlines from Helena to Louisville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,937 reviews
United Airlines
7.4
Good
8,937 reviews

Food

6.6

Boarding

7.7

Overall

7.4

Entertainment

7.1

Crew

8.1

Comfort

7.3

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

    For as low as $349, United Airlines can have you in Louisville from Helena in 6h. Airlines will cover a distance of 1451 mi.

  • What is the cheapest airline to fly from Helena to Louisville round-trip?

    United Airlines, at $268, was found to be the cheapest airline from Helena to Louisville..

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Helena 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.

  • What is the cheapest month to book a flight from Helena to Louisville?

    Currently, January is the cheapest month in which you can book a flight from Helena to Louisville (average of $299). Flying from Helena to Louisville in April is currently the most expensive (average of $369). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Louisville?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helena to Louisville

See prices for flight routes from nearby airports that may be better suited for you.
Bozeman to Nashville flights
Missoula to Nashville flights
Kalispell to Nashville flights
Bozeman to Cincinnati flights
Bozeman to Knoxville flights
Billings to Louisville flights
Billings to Nashville flights
Bozeman to Louisville flights
Billings to Cincinnati flights
Missoula to Cincinnati flights
Great Falls to Nashville flights
Kalispell to Knoxville flights
Bozeman to Lexington flights
Billings to Lexington flights
Cody to Nashville flights
Kalispell to Louisville flights
Helena to Nashville flights
Butte to Nashville flights
Bozeman to Blountville flights
Missoula to Louisville flights
Missoula to Lexington flights
Kalispell to Cincinnati flights
Billings to Knoxville flights
Billings to Evansville flights
Great Falls to Cincinnati flights
Helena to Lexington flights
Kalispell to Lexington flights
Butte to Knoxville flights
Helena to Blountville flights
Helena to Knoxville flights
Butte to Cincinnati flights
Missoula to Knoxville flights
Helena to Cincinnati flights
Bozeman to Huntington flights
Great Falls to Lexington flights

Top airline flying from Helena to Louisville

Discover the top airline that operate flights from Helena to Louisville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$498FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.