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Helena

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

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 1/31. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — HLN
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Louisville to Helena

Best flights from Louisville to Helena
Discover carefully curated flight deals from Louisville to Helena that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

This United Airlines deal was found by Cheapflights users on 12/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/319:00 amSDF - HLN
1 stop6h 41mUnited Airlines
Tue 2/36:15 amHLN - SDF
1 stop6h 11mUnited Airlines
Deal found 12/9$349

Find flight deals from Louisville to Helena

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Helena (HLN). 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$349
(United Airlines)
Provider with most accurate pricing for Louisville Intl-Helena flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Helena flights.
Search Deals
From Louisville Intl to Helena
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville to Helena 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 December 12, 2025.
Use the filters below to find and compare flights from Louisville to Helena that are best for you.

Fly from

Louisville

Fly to

Helena

Route

Depart

Return

Price

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Sat 1/31

9:00 am-1:41 pm

1 stop6h 41m

Helena

Tue 2/3

6:15 am-2:26 pm

1 stop6h 11m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Compare providers for flights from Louisville to Helena

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 Helena in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

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

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

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

Currently, August is the cheapest month in which you can book a flight from Louisville to Helena (average of $149). Flying from Louisville to Helena in March is currently the most expensive (average of $354). 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 Helena

Get insights into the airlines that provide service to Helena. 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 Helena. Reviews last updated December 12, 2025.
Get a feel of what it's like to fly with United Airlines from Louisville to Helena 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
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,095 reviews
United Airlines
7.4
Good
9,095 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Entertainment

7.1

Food

6.6

Boarding

7.7

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

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

    A quick flight from Louisville to Helena can take about 6h 41m. United Airlines provides one of the quickest options available for as low as $349. There are 1451 mi between Louisville and Helena.

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

    Currently priced at $268, United Airlines will fly you from Louisville to Helena and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Louisville to Helena 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 Louisville to Helena?

    Currently, August is the cheapest month in which you can book a flight from Louisville to Helena (average of $149). Flying from Louisville to Helena in March is currently the most expensive (average of $354). 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.

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Top airline flying from Louisville to Helena

Discover the top airline that operate flights from Louisville to Helena. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$498FlexibilityNo cancel feeOn-time69%

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