When did momondo last update prices for flights from Louisville Intl Airport to Helena Airport?

Prices for flights from Louisville Intl Airport to Helena Airport refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to Helena Airport?

As of December 2025, there is 1 operator available to choose from for flights from Louisville Intl Airport to Helena Airport.

How old do you have to be to fly from Louisville Intl Airport to Helena Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Helena Airport.

What documentation or ID do you need to fly to Helena Airport?

The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$369 Cheap Flights from Louisville to Helena in 2025/26

1 adult

0 bags

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Find the cheapest flights from Louisville to Helena

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:22 pm - 9:26 pm

SDF

HLN

8h 04m1 stop

2:27 pm - 10:24 pm

HLN

SDF

5h 57m1 stop

$369United Airlines

Sat, Jan 31 - Tue, Feb 3

9:50 am - 9:26 pm

SDF

HLN

13h 36m2 stops

6:15 am - 2:26 pm

HLN

SDF

6h 11m1 stop

$374United Airlines

Sat, Jan 31 - Tue, Feb 3

5:35 am - 1:41 pm

SDF

HLN

10h 06m2 stops

6:15 am - 7:31 pm

HLN

SDF

11h 16m2 stops

$379United Airlines

Sat, Jan 31 - Tue, Feb 3

United Airlines flights from Louisville to Helena

Our best United Airlines deals on Louisville to Helena flight tickets

United Airlines

Jan 31

SDF3:22 pmLouisville Intl

8h 04m

1 stop

HLN9:26 pmHelena

Feb 3

HLN6:15 amHelena

6h 11m

1 stop

SDF2:26 pmLouisville Intl

$369

Find similar

United Airlines

Jan 31

SDF9:50 amLouisville Intl

13h 36m

2 stops

HLN9:26 pmHelena

Feb 3

HLN6:15 amHelena

6h 11m

1 stop

SDF2:26 pmLouisville Intl

$374

Find similar

United Airlines

Jan 31

SDF5:35 amLouisville Intl

10h 06m

2 stops

HLN1:41 pmHelena

Feb 3

HLN6:15 amHelena

11h 16m

2 stops

SDF7:31 pmLouisville Intl

$379

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Sat 1/31

3:22 pm-9:26 pm

1 stop8h 04m

Helena

Tue 2/3

2:27 pm-10:24 pm

1 stop5h 57m

$369

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Sat 1/31

9:50 am-9:26 pm

2 stops13h 36m

Helena

Tue 2/3

6:15 am-2:26 pm

1 stop6h 11m

$374

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Sat 1/31

5:35 am-1:41 pm

2 stops10h 06m

Helena

Tue 2/3

6:15 am-7:31 pm

2 stops11h 16m

$379

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Louisville to Helena

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What airlines fly to Helena?

United Airlines, Delta and American Airlines are the top three most popular airlines that fly to Helena from Louisville according to our data. United Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Helena. Keep in mind that there are 5 different airlines that fly to Helena on a routine basis, so you have a few additional options to choose from.

When to book flights from Louisville to Helena

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to Helena according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to Helena (SDF to HLN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to Helena

Fastest flight time	8h 04m
Direct flights	None

The fastest flight from Louisville to Helena takes 8h 04m

There are no direct flights from Louisville to Helena. There are no popular flight routes from Louisville to Helena.

Search flight deals

How far is Louisville Intl to Helena by plane?
The distance between Louisville Intl and Helena is about 1449.4 mi. By plane, this route typically takes 8h 04m.
When did momondo last update prices for flights from Louisville Intl Airport to Helena Airport?
Prices for flights from Louisville Intl Airport to Helena Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to Helena Airport?
As of December 2025, there is 1 operator available to choose from for flights from Louisville Intl Airport to Helena Airport.
How old do you have to be to fly from Louisville Intl Airport to Helena Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Louisville Intl Airport to Helena Airport.
What documentation or ID do you need to fly to Helena Airport?
The necessary travel and health documents for your Helena Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Louisville to Helena?
momondo data reveals that the most frequently booked airline on the route from Louisville to Helena is United Airlines, representing 100% of all bookings.

Best airlines flying from Louisville to Helena

Compare and see reviews for airlines that fly from Louisville to Helena with momondo

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 9,091 reviews		Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to Helena?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to Helena for you.

Can I find flights from Louisville to Helena with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to Helena flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to Helena?

Once you have performed a search for Louisville to Helena flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to Helena right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Louisville to Helena flights. All you need is a valid email address and we will do the rest; it is that quick and easy.