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.

$368 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.

3:36 pm - 9:33 pm

SDF

HLN

7h 57m

1 stop

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$374United Airlines

Fri, Apr 17 - Mon, Apr 20

8:47 am - 9:33 pm

SDF

HLN

14h 46m

2 stops

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$379United Airlines

Fri, Apr 17 - Mon, Apr 20

9:00 am - 1:39 pm

SDF

HLN

6h 39m

1 stop

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$399United Airlines

Thu, Apr 16 - Mon, Apr 20

6:04 am - 12:24 pm

SDF

HLN

8h 20m

2 stops

5:40 am - 4:01 pm

HLN

SDF

8h 21m

2 stops

$414Delta

Fri, Apr 17 - Tue, Apr 21

5:00 am - 1:39 pm

SDF

HLN

10h 39m

2 stops

6:15 am - 11:12 pm

HLN

SDF

14h 57m

2 stops

$425United Airlines

Fri, Apr 17 - Tue, Apr 21

3:36 pm - 9:33 pm

SDF

HLN

7h 57m

1 stop

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$464United Airlines

Fri, Apr 17 - Tue, Apr 21

8:47 am - 9:33 pm

SDF

HLN

14h 46m

2 stops

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$469United Airlines

Fri, Apr 17 - Tue, Apr 21

9:55 am - 9:33 pm

SDF

HLN

13h 38m

2 stops

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$484United Airlines

Fri, Apr 17 - Tue, Apr 21

10:00 am - 9:33 pm

SDF

HLN

13h 33m

2 stops

2:25 pm - 10:39 pm

HLN

SDF

6h 14m

1 stop

$500United Airlines

Thu, Apr 16 - Mon, Apr 20

3:25 pm - 9:20 pm

SDF

HLN

7h 55m

1 stop

2:20 pm - 10:59 pm

HLN

SDF

6h 39m

1 stop

$557United Airlines

Tue, Jun 2 - Mon, Jun 8

United Airlines flights from Louisville to Helena

Our best United Airlines deals on Louisville to Helena flight tickets

United Airlines

Apr 17

SDF3:36 pmLouisville Intl

7h 57m

1 stop

HLN9:33 pmHelena

Apr 20

HLN2:25 pmHelena

6h 14m

1 stop

SDF10:39 pmLouisville Intl

$374

United Airlines

Apr 17

SDF8:47 amLouisville Intl

14h 46m

2 stops

HLN9:33 pmHelena

Apr 20

HLN2:25 pmHelena

6h 14m

1 stop

SDF10:39 pmLouisville Intl

$379

United Airlines

Apr 16

SDF9:00 amLouisville Intl

6h 39m

1 stop

HLN1:39 pmHelena

Apr 20

HLN2:25 pmHelena

6h 14m

1 stop

SDF10:39 pmLouisville Intl

$399

Delta flights from Louisville to Helena

Our best Delta deals on Louisville to Helena flight tickets

Delta

Apr 17

SDF6:04 amLouisville Intl

8h 20m

2 stops

HLN12:24 pmHelena

Apr 21

HLN5:40 amHelena

8h 21m

2 stops

SDF4:01 pmLouisville Intl

$409

Delta

Apr 17

SDF6:04 amLouisville Intl

8h 20m

2 stops

HLN12:24 pmHelena

Apr 21

HLN5:40 amHelena

8h 21m

2 stops

SDF4:01 pmLouisville Intl

$414

Delta

Apr 16

SDF6:04 amLouisville Intl

8h 20m

2 stops

HLN12:24 pmHelena

Apr 20

HLN5:40 amHelena

12h 59m

2 stops

SDF8:39 pmLouisville Intl

$734

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

3:36 pm-9:33 pm

1 stop7h 57m

Helena

Mon 4/20

2:25 pm-10:39 pm

1 stop6h 14m

$374

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

8:47 am-9:33 pm

2 stops14h 46m

Helena

Mon 4/20

2:25 pm-10:39 pm

1 stop6h 14m

$379

Quickest round-trip

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Thu 4/16

9:00 am-1:39 pm

1 stop6h 39m

Helena

Mon 4/20

2:25 pm-10:39 pm

1 stop6h 14m

$399

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

6:04 am-12:24 pm

2 stops8h 20m

Helena

Tue 4/21

5:40 am-4:01 pm

2 stops8h 21m

$414

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

5:00 am-1:39 pm

2 stops10h 39m

Helena

Tue 4/21

6:15 am-11:12 pm

2 stops14h 57m

$425

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

3:36 pm-9:33 pm

1 stop7h 57m

Helena

Tue 4/21

2:25 pm-10:39 pm

1 stop6h 14m

$464

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

8:47 am-9:33 pm

2 stops14h 46m

Helena

Tue 4/21

2:25 pm-10:39 pm

1 stop6h 14m

$469

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Fri 4/17

9:55 am-9:33 pm

2 stops13h 38m

Helena

Tue 4/21

2:25 pm-10:39 pm

1 stop6h 14m

$484

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Thu 4/16

10:00 am-9:33 pm

2 stops13h 33m

Helena

Mon 4/20

2:25 pm-10:39 pm

1 stop6h 14m

$500

LouisvilleHelena

SDF - HLN

SDFHLN

Louisville Intl

Tue 6/2

3:25 pm-9:20 pm

1 stop7h 55m

Helena

Mon 6/8

2:20 pm-10:59 pm

1 stop6h 39m

$557

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted 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 41% 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	6h 39m
Direct flights	None

The fastest flight from Louisville to Helena takes 6h 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 6h 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.