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 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.

$375 Cheap Flights from Louisville to Helena in 2026

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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.

3:20 pm - 8:59 pm

SDF

HLN

7h 39m

1 stop

2:30 pm - 9:57 pm

HLN

SDF

5h 27m

1 stop

$419United Airlines

Tue, Oct 27 - Sat, Oct 31

11:00 am - 8:59 pm

SDF

HLN

11h 59m

2 stops

2:30 pm - 9:57 pm

HLN

SDF

5h 27m

1 stop

$424United Airlines

Tue, Oct 27 - Sat, Oct 31

7:30 am - 1:27 pm

SDF

HLN

7h 57m

2 stops

7:00 am - 7:34 pm

HLN

SDF

10h 34m

2 stops

$429United Airlines

Tue, Oct 27 - Sat, Oct 31

11:00 am - 9:30 pm

SDF

HLN

12h 30m

2 stops

6:15 am - 10:15 pm

HLN

SDF

14h 00m

2 stops

$582United Airlines

Sat, Aug 29 - Tue, Sep 1

7:30 am - 8:59 pm

SDF

HLN

15h 29m

3 stops

7:00 am - 7:34 pm

HLN

SDF

10h 34m

2 stops

$617United Airlines

Tue, Oct 27 - Sat, Oct 31

United Airlines flights from Louisville to Helena

Our best United Airlines deals on Louisville to Helena flight tickets

United Airlines

Oct 27

SDF3:20 pmLouisville Intl

7h 39m

1 stop

HLN8:59 pmHelena

Oct 31

HLN2:30 pmHelena

5h 27m

1 stop

SDF9:57 pmLouisville Intl

$419

United Airlines

Oct 27

SDF11:00 amLouisville Intl

11h 59m

2 stops

HLN8:59 pmHelena

Oct 31

HLN2:30 pmHelena

5h 27m

1 stop

SDF9:57 pmLouisville Intl

$424

United Airlines

Oct 27

SDF7:30 amLouisville Intl

7h 57m

2 stops

HLN1:27 pmHelena

Oct 31

HLN7:00 amHelena

10h 34m

2 stops

SDF7:34 pmLouisville Intl

$429

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Tue 10/27

3:20 pm-8:59 pm

1 stop7h 39m

Helena

Sat 10/31

2:30 pm-9:57 pm

1 stop5h 27m

$419

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Tue 10/27

11:00 am-8:59 pm

2 stops11h 59m

Helena

Sat 10/31

2:30 pm-9:57 pm

1 stop5h 27m

$424

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Tue 10/27

7:30 am-1:27 pm

2 stops7h 57m

Helena

Sat 10/31

7:00 am-7:34 pm

2 stops10h 34m

$429

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Sat 8/29

11:00 am-9:30 pm

2 stops12h 30m

Helena

Tue 9/1

6:15 am-10:15 pm

2 stops14h 00m

$582

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Tue 10/27

7:30 am-8:59 pm

3 stops15h 29m

Helena

Sat 10/31

7:00 am-7:34 pm

2 stops10h 34m

$617

Cheapest one-way

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Mon 6/1

6:51 am-4:06 pm

2 stops11h 15m

$375

Quickest one-way

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Mon 6/1

3:25 pm-9:20 pm

1 stop7h 55m

$499

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 is the cheapest airline that flies from Louisville Intl to Helena?

Alaska Airlines and United Airlines are the most popular carriers operating from Louisville Intl to Helena

What airlines fly to Helena?

United Airlines, American Airlines and Delta 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 42% 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	7h 39m
Direct flights	None

The fastest flight from Louisville to Helena takes 7h 39m

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

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Frequently asked questions about flying from Louisville to Helena

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 7h 39m.
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 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.

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.