In terms of precipitation, rainfall in Helena ranges from 0.3 - 2.1 inches per month. June is typically the wettest month, when rainfall can reach 2.1 in. February is typically the driest time to visit Helena when rainfall is around 0.3 in.

If weather is an important factor for your trip to Helena, 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 69.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 21.2 F).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Louisville to Helena as you normally would.

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.

$279+ Flights from Louisville to Helena

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Cheap flight deals from Louisville to Helena

Round-trip from	$279 (Delta)

From Louisville Intl to Helena

Search Deals

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 julio 30, 2025.

sáb. 8/234:25 pmSDF - HLN

2 stops7h 48mDelta

mar. 8/261:00 pmHLN - SDF

2 stops8h 56mDelta

Deal found 7/27

$279

sáb. 8/239:31 amSDF - HLN

1 stop8h 33mUnited Airlines

mar. 8/262:30 pmHLN - SDF

1 stop6h 00mUnited Airlines

Deal found 7/27

$349

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 julio 30, 2025.

sáb. 8/234:25 pmSDF - HLN

2 stops7h 48mDelta

mar. 8/261:00 pmHLN - SDF

2 stops8h 56mDelta

Deal found 7/27

$279

sáb. 8/239:31 amSDF - HLN

1 stop8h 33mUnited Airlines

mar. 8/262:30 pmHLN - SDF

1 stop6h 00mUnited Airlines

Deal found 7/27

$349

Last-minute flights from Louisville to Helena
Discover last-minute flight deals from Louisville to Helena. Data last updated julio 30, 2025 and is based on user searches.

sáb. 8/234:25 pmSDF - HLN

2 stops7h 48mDelta

mar. 8/261:00 pmHLN - SDF

2 stops8h 56mDelta

Deal found 7/27

$279

sáb. 8/239:31 amSDF - HLN

1 stop8h 33mUnited Airlines

mar. 8/262:30 pmHLN - SDF

1 stop6h 00mUnited Airlines

Deal found 7/27

$349

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

sáb. 8/23

4:25 pm-10:13 pm

2 stops7h 48m

Helena

mar. 8/26

1:00 pm-11:56 pm

2 stops8h 56m

$279

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

sáb. 8/23

9:31 am-4:04 pm

1 stop8h 33m

Helena

mar. 8/26

2:30 pm-10:30 pm

1 stop6h 00m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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, February is the cheapest month in which you can book a flight from Louisville to Helena (average of $353). Flying from Louisville to Helena in May is currently the most expensive (average of $517). 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 a feel of what it's like to fly with Delta and 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.

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very good

7,980 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

United Airlines

7.4

Good

8,896 reviews

Delta

8.0

Very good

7,980 reviews

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

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, February is the cheapest month in which you can book a flight from Louisville to Helena (average of $353). Flying from Louisville to Helena in May is currently the most expensive (average of $517). 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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$279+ 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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Louisville to Helena with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Louisville to Helena

Round-trip from

Find flight deals from Louisville to Helena

Cheapest flights from Louisville to HelenaExplore 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 julio 30, 2025.

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 julio 30, 2025.

Cheapflights Fare Finder

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

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.

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?

Reviews of airlines servicing Helena

Get a feel of what it's like to fly with Delta and 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.

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.

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

How can I find direct flights from Louisville to Helena?

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

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

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 Louisville to Helena

See prices for flight routes from nearby airports that may be better suited for you.

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Book with Flexibility

Travel Smart

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 julio 30, 2025.