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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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — HLN
dic. 17 — dic. 241
mié. 12/17
mié. 12/24
1 adult, Economy
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Cheap 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 noviembre 17, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$682
(United Airlines)
Provider with most accurate pricing for Louisville Intl-Helena flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Helena flights.
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From Louisville Intl to Helena
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Find flight deals from Louisville to Helena

Cheapest flights from Louisville to Helena
Explore the most affordable flight options available from Louisville to Helena. Find the lowest fares from popular airlines and budget airlines, with prices last updated on noviembre 17, 2025.

This Delta deal was found by Cheapflights users on 11/14. 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.
sáb. 11/153:05 pmSDF - HLN
2 stops9h 25mDelta
mar. 11/185:30 amHLN - SDF
2 stops9h 46mDelta
Deal found 11/14$479
This United Airlines deal was found by Cheapflights users on 11/14. 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.
sáb. 11/153:20 pmSDF - HLN
1 stop8h 02mUnited Airlines
mar. 11/186:40 amHLN - SDF
1 stop5h 39mUnited Airlines
Deal found 11/14$549

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 noviembre 17, 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

dom. 4/5

9:00 am-1:27 pm

1 stop6h 27m

Helena

mar. 4/14

2:30 pm-10:32 pm

1 stop6h 02m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

lun. 4/6

3:25 pm-8:59 pm

1 stop7h 34m

Helena

mié. 4/15

2:30 pm-10:32 pm

1 stop6h 02m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

mié. 4/8

3:25 pm-8:59 pm

1 stop7h 34m

Helena

mar. 4/14

7:00 am-2:26 pm

1 stop5h 26m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

mié. 4/8

3:25 pm-8:59 pm

1 stop7h 34m

Helena

mié. 4/15

2:30 pm-10:32 pm

1 stop6h 02m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

mar. 4/7

3:25 pm-8:59 pm

1 stop7h 34m

Helena

mar. 4/14

7:00 am-2:26 pm

1 stop5h 26m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

mar. 4/7

9:00 am-1:27 pm

1 stop6h 27m

Helena

mié. 4/15

2:30 pm-10:32 pm

1 stop6h 02m

$349

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

lun. 4/6

3:25 pm-8:59 pm

1 stop7h 34m

Helena

mar. 4/14

7:00 am-7:39 pm

2 stops10h 39m

$354

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

dom. 4/5

9:00 am-1:27 pm

1 stop6h 27m

Helena

lun. 4/13

2:30 pm-10:32 pm

1 stop6h 02m

$449

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

lun. 4/6

3:25 pm-8:59 pm

1 stop7h 34m

Helena

lun. 4/13

2:30 pm-10:32 pm

1 stop6h 02m

$449

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

mié. 4/8

3:25 pm-8:59 pm

1 stop7h 34m

Helena

sáb. 4/11

7:00 am-2:26 pm

1 stop5h 26m

$468

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/17

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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust 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-Helena flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Helena flight deals on Cheapflights vs. FlightHub >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 Expedia the most. Expedia 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 $359). 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.

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 27m. United Airlines provides one of the quickest options available for as low as $349. There are 1451 mi between Louisville and Helena.

  • 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 $359). 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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