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.

$359 Cheap Flights from Louisville to Helena in 2026/27

Find the cheapest flights from Louisville to Helena

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

9:00 am - 1:52 pmSDF Louisville Intl-HLN Helena

6h 52m1 stop Denver Intl

2:35 pm - 10:25 pmHLN Helena-SDF Louisville Intl

5h 50m1 stop Denver Intl

$359United Airlines

Thu, Dec 3 - Sun, Dec 6

3:20 pm - 9:46 pmSDF Louisville Intl-HLN Helena

8h 26m1 stop Denver Intl

6:20 am - 6:17 pmHLN Helena-SDF Louisville Intl

9h 57m2 stops Denver Intl Chicago O'Hare Intl

$364United Airlines

Thu, Dec 3 - Sun, Dec 6

1:04 pm - 10:32 pmSDF Louisville Intl-HLN Helena

11h 28m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:10 pm - 12:09 amHLN Helena-SDF Louisville Intl

8h 59m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$369Delta

Thu, Dec 3 - Sun, Dec 6

8:00 am - 1:40 pmSDF Louisville Intl-HLN Helena

7h 40m1 stop Denver Intl

2:23 pm - 10:24 pmHLN Helena-SDF Louisville Intl

6h 01m1 stop Denver Intl

$469United Airlines

Sat, Nov 7 - Wed, Nov 11

7:00 am - 1:40 pmSDF Louisville Intl-HLN Helena

8h 40m2 stops Chicago O'Hare Intl Denver Intl

2:23 pm - 10:24 pmHLN Helena-SDF Louisville Intl

6h 01m1 stop Denver Intl

$474United Airlines

Sat, Nov 7 - Wed, Nov 11

10:00 am - 8:59 pmSDF Louisville Intl-HLN Helena

12h 59m2 stops Washington, D.C. Dulles Intl Denver Intl

7:00 am - 7:34 pmHLN Helena-SDF Louisville Intl

10h 34m2 stops Denver Intl Washington, D.C. Dulles Intl

$479United Airlines

Sat, Jan 9 - Tue, Jan 12

8:00 am - 1:40 pmSDF Louisville Intl-HLN Helena

7h 40m1 stop Denver Intl

2:23 pm - 10:24 pmHLN Helena-SDF Louisville Intl

6h 01m1 stop Denver Intl

$558United Airlines

Sat, Nov 7 - Wed, Nov 11

7:00 am - 1:40 pmSDF Louisville Intl-HLN Helena

8h 40m2 stops Chicago O'Hare Intl Denver Intl

2:23 pm - 10:24 pmHLN Helena-SDF Louisville Intl

6h 01m1 stop Denver Intl

$563United Airlines

Sat, Nov 7 - Wed, Nov 11

5:10 am - 1:40 pmSDF Louisville Intl-HLN Helena

10h 30m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 10:30 pmHLN Helena-SDF Louisville Intl

14h 02m2 stops Denver Intl Chicago O'Hare Intl

$723United Airlines

Sat, Nov 7 - Wed, Nov 11

5:10 am - 1:40 pmSDF Louisville Intl-HLN Helena

10h 30m2 stops Chicago O'Hare Intl Denver Intl

6:28 am - 10:30 pmHLN Helena-SDF Louisville Intl

14h 02m2 stops Denver Intl Chicago O'Hare Intl

$758United Airlines

Sat, Nov 7 - Wed, Nov 11

Cheap last minute flights

Enter your travel dates to find the best prices.

3:36 pm - 9:08 pmSDF Louisville Intl-HLN Helena

7h 32m1 stop Denver Intl

6:25 am - 2:40 pmHLN Helena-SDF Louisville Intl

6h 15m1 stop Denver Intl

$559United Airlines

Thu, Oct 1 - Sat, Oct 3

7:00 am - 1:48 pmSDF Louisville Intl-HLN Helena

8h 48m2 stops Chicago O'Hare Intl Denver Intl

6:25 am - 2:40 pmHLN Helena-SDF Louisville Intl

6h 15m1 stop Denver Intl

$564United Airlines

Thu, Oct 1 - Sat, Oct 3

10:25 am - 9:08 pmSDF Louisville Intl-HLN Helena

12h 43m2 stops Chicago O'Hare Intl Denver Intl

6:25 am - 7:11 pmHLN Helena-SDF Louisville Intl

10h 46m2 stops Denver Intl Chicago O'Hare Intl

$569United Airlines

Thu, Oct 1 - Sat, Oct 3

6:00 am - 12:17 pmSDF Louisville Intl-HLN Helena

8h 17m2 stops Atlanta Hartsfield-Jackson Salt Lake City

12:57 pm - 11:59 pmHLN Helena-SDF Louisville Intl

9h 02m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$629Delta

Fri, Oct 2 - Mon, Oct 5

3:36 pm - 9:08 pmSDF Louisville Intl-HLN Helena

7h 32m1 stop Denver Intl

6:25 am - 2:40 pmHLN Helena-SDF Louisville Intl

6h 15m1 stop Denver Intl

$639United Airlines

Fri, Oct 2 - Mon, Oct 5

9:04 am - 9:08 pmSDF Louisville Intl-HLN Helena

14h 04m2 stops Chicago O'Hare Intl Denver Intl

6:25 am - 2:40 pmHLN Helena-SDF Louisville Intl

6h 15m1 stop Denver Intl

$644United Airlines

Fri, Oct 2 - Mon, Oct 5

3:36 pm - 9:08 pmSDF Louisville Intl-HLN Helena

7h 32m1 stop Denver Intl

6:25 am - 2:40 pmHLN Helena-SDF Louisville Intl

6h 15m1 stop Denver Intl

$803United Airlines

Sun, Oct 4 - Sat, Oct 10

1:15 pm - 10:24 pmSDF Louisville Intl-HLN Helena

11h 09m2 stops Atlanta Hartsfield-Jackson Salt Lake City

1:08 pm - 7:10 pmHLN Helena-SDF Louisville Intl

28h 02m2 stops Salt Lake City Atlanta Hartsfield-Jackson

$813Delta

Fri, Oct 2 - Fri, Oct 9

8:00 am - 1:48 pmSDF Louisville Intl-HLN Helena

7h 48m1 stop Denver Intl

2:30 pm - 10:32 pmHLN Helena-SDF Louisville Intl

6h 02m1 stop Denver Intl

$833United Airlines

Fri, Oct 2 - Wed, Oct 7

10:25 am - 9:08 pmSDF Louisville Intl-HLN Helena

12h 43m2 stops Chicago O'Hare Intl Denver Intl

2:30 pm - 10:32 pmHLN Helena-SDF Louisville Intl

6h 02m1 stop Denver Intl

$838United Airlines

Fri, Oct 2 - Wed, Oct 7

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United Airlines flights from Louisville to Helena

Our best United Airlines deals on Louisville to Helena flight tickets

United Airlines

Dec 3

SDF9:00 amLouisville Intl

6h 52m

1 stop

HLN1:52 pmHelena

Dec 6

HLN2:35 pmHelena

5h 50m

1 stop

SDF10:25 pmLouisville Intl

$359

United Airlines

Dec 3

SDF3:20 pmLouisville Intl

8h 26m

1 stop

HLN9:46 pmHelena

Dec 6

HLN6:20 amHelena

9h 57m

2 stops

SDF6:17 pmLouisville Intl

$364

United Airlines

Nov 7

SDF8:00 amLouisville Intl

7h 40m

1 stop

HLN1:40 pmHelena

Nov 11

HLN2:23 pmHelena

6h 01m

1 stop

SDF10:24 pmLouisville Intl

$469

Delta flights from Louisville to Helena

Our best Delta deals on Louisville to Helena flight tickets

Delta

Dec 3

SDF1:04 pmLouisville Intl

11h 28m

2 stops

HLN10:32 pmHelena

Dec 6

HLN1:10 pmHelena

8h 59m

2 stops

SDF12:09 amLouisville Intl

$369

Delta

Oct 2

SDF6:00 amLouisville Intl

8h 17m

2 stops

HLN12:17 pmHelena

Oct 5

HLN12:57 pmHelena

9h 02m

2 stops

SDF11:59 pmLouisville Intl

$629

Delta

Oct 6

SDF6:00 amLouisville Intl

8h 28m

2 stops

HLN12:28 pmHelena

Oct 9

HLN1:08 pmHelena

28h 02m

2 stops

SDF7:10 pmLouisville Intl

$783

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Thu 12/3

9:00 am-1:52 pm

1 stop6h 52m

Helena

Sun 12/6

2:35 pm-10:25 pm

1 stop5h 50m

$359

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Thu 12/3

3:20 pm-9:46 pm

1 stop8h 26m

Helena

Sun 12/6

6:20 am-6:17 pm

2 stops9h 57m

$364

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Thu 12/3

1:04 pm-10:32 pm

2 stops11h 28m

Helena

Sun 12/6

1:10 pm-12:09 am

2 stops8h 59m

$369

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

8:00 am-1:40 pm

1 stop7h 40m

Helena

Wed 11/11

2:23 pm-10:24 pm

1 stop6h 01m

$469

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

7:00 am-1:40 pm

2 stops8h 40m

Helena

Wed 11/11

2:23 pm-10:24 pm

1 stop6h 01m

$474

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 1/9

10:00 am-8:59 pm

2 stops12h 59m

Helena

Tue 1/12

7:00 am-7:34 pm

2 stops10h 34m

$479

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

8:00 am-1:40 pm

1 stop7h 40m

Helena

Wed 11/11

2:23 pm-10:24 pm

1 stop6h 01m

$558

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

7:00 am-1:40 pm

2 stops8h 40m

Helena

Wed 11/11

2:23 pm-10:24 pm

1 stop6h 01m

$563

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

5:10 am-1:40 pm

2 stops10h 30m

Helena

Wed 11/11

6:28 am-10:30 pm

2 stops14h 02m

$723

LouisvilleHelena

SDF Louisville Intl - HLN Helena

SDFHLN

Louisville Intl

Sat 11/7

5:10 am-1:40 pm

2 stops10h 30m

Helena

Wed 11/11

6:28 am-10:30 pm

2 stops14h 02m

$758

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 50% 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

Best Price Found	$359
Fastest flight time	6h 52m
Direct flights	None

The best flight deal from Louisville to Helena found on momondo in the last 72 hours is $359

The fastest flight from Louisville to Helena takes 6h 52m

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

Search flight deals

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 52m.
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.