What airlines fly to Louisville?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Louisville from Helena according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Louisville. Keep in mind that there are 3 different airlines that fly to Louisville on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Helena Airport to Louisville Intl Airport were last updated today.

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

The number of operators available for flights from Helena Airport to Louisville Intl Airport is 1 as of September 2025.

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

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Louisville Intl Airport.

What documentation or ID do you need to fly to Louisville Intl Airport?

The necessary travel and health documents for your Louisville Intl 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.

$329 Cheap Flights from Helena to Louisville in 2025

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Find the cheapest flights from Helena to Louisville

Round-trip

One-way

Cheap round-trip flights

2:30 pm - 10:36 pmHLN-SDF

6h 06m1 stop

3:33 pm - 9:22 pmSDF-HLN

7h 49m1 stop

$349United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

2:30 pm - 10:36 pmHLN-SDF

6h 06m1 stop

12:20 pm - 9:22 pmSDF-HLN

11h 02m2 stops

$354United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

6:30 am - 8:42 pmHLN-SDF

12h 12m2 stops

12:20 pm - 9:22 pmSDF-HLN

11h 02m2 stops

$359United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

6:30 am - 8:49 pmHLN-SDF

12h 19m2 stops

12:20 pm - 9:22 pmSDF-HLN

11h 02m2 stops

$384United Airlines

Find Deal

Tue, Dec 9 - Sat, Dec 13

1:06 pm - 12:05 amHLN-SDF

8h 59m2 stops

12:37 pm - 12:26 pmSDF-HLN

25h 49m2 stops

$387Delta

Find Deal

Tue, Dec 9 - Sat, Dec 13

2:42 pm - 10:30 pmHLN-SDF

5h 48m1 stop

9:01 am - 2:09 pmSDF-HLN

7h 08m1 stop

$739United Airlines

Find Deal

Sat, Oct 4 - Thu, Oct 9

5:18 pm - 2:51 pmHLN-SDF

19h 33m2 stops

9:01 am - 2:09 pmSDF-HLN

7h 08m1 stop

$777United Airlines

Find Deal

Sat, Oct 4 - Thu, Oct 9

6:18 pm - 10:31 amHLN-SDF

14h 13m2 stops

7:32 am - 5:41 pmSDF-HLN

12h 09m2 stops

$1,277Alaska Airlines

Find Deal

Sat, Oct 4 - Thu, Oct 9

United Airlines flights from Helena to Louisville

Our best United Airlines deals on Helena to Louisville flight tickets

United Airlines

Dec 9

HLN2:30 pmHelena

6h 06m

1 stop

SDF10:36 pmLouisville Intl

Dec 13

SDF3:33 pmLouisville Intl

7h 49m

1 stop

HLN9:22 pmHelena

$349

Find similar

United Airlines

Dec 9

HLN2:30 pmHelena

6h 06m

1 stop

SDF10:36 pmLouisville Intl

Dec 13

SDF12:20 pmLouisville Intl

11h 02m

2 stops

HLN9:22 pmHelena

$354

Find similar

United Airlines

Dec 9

HLN6:30 amHelena

12h 12m

2 stops

SDF8:42 pmLouisville Intl

Dec 13

SDF12:20 pmLouisville Intl

11h 02m

2 stops

HLN9:22 pmHelena

$359

Find similar

Fly from

Fly to

Route

Depart

Return

Price

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

2:30 pm-10:36 pm

1 stop6h 06m

Louisville Intl

Sat 12/13

3:33 pm-9:22 pm

1 stop7h 49m

$349

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

2:30 pm-10:36 pm

1 stop6h 06m

Louisville Intl

Sat 12/13

12:20 pm-9:22 pm

2 stops11h 02m

$354

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

6:30 am-8:42 pm

2 stops12h 12m

Louisville Intl

Sat 12/13

12:20 pm-9:22 pm

2 stops11h 02m

$359

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

6:30 am-8:49 pm

2 stops12h 19m

Louisville Intl

Sat 12/13

12:20 pm-9:22 pm

2 stops11h 02m

$384

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 12/9

1:06 pm-12:05 am

2 stops8h 59m

Louisville Intl

Sat 12/13

12:37 pm-12:26 pm

2 stops25h 49m

$387

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 10/4

2:42 pm-10:30 pm

1 stop5h 48m

Louisville Intl

Thu 10/9

9:01 am-2:09 pm

1 stop7h 08m

$739

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 10/4

5:18 pm-2:51 pm

2 stops19h 33m

Louisville Intl

Thu 10/9

9:01 am-2:09 pm

1 stop7h 08m

$777

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 10/4

6:18 pm-10:31 am

2 stops14h 13m

Louisville Intl

Thu 10/9

7:32 am-5:41 pm

2 stops12h 09m

$1,277

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Helena to Louisville

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

Prices

Airlines

What is the cheapest day to depart on your flight to Louisville?

On average, the least expensive day to fly to Louisville from Helena is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $396. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from Helena to Louisville on a Thursday will generally be more expensive and average around $666. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Louisville?

Our data shows that the cheapest Helena to Louisville flights are usually those with departure times at noon. Our users have found flights to Louisville at noon for as low as $396. In the morning is when there is more demand to fly to Louisville, so prices are often more expensive at around $429 per ticket.

When to book flights from Helena to Louisville

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

Estimated round-trip price

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

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

Direct flights	None

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

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How far is Helena to Louisville Intl by plane?
A flight from Helena to Louisville Intl will travel around 1449.4 mi. In terms of flight time, this usually takes a little over 5h 48m.
When did momondo last update prices for flights from Helena Airport to Louisville Intl Airport?
Prices for flights from Helena Airport to Louisville Intl Airport were last updated today.
How many operators does momondo search for flights from Helena Airport to Louisville Intl Airport?
The number of operators available for flights from Helena Airport to Louisville Intl Airport is 1 as of September 2025.
How old do you have to be to fly from Helena Airport to Louisville Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Helena Airport to Louisville Intl Airport.
What documentation or ID do you need to fly to Louisville Intl Airport?
The necessary travel and health documents for your Louisville Intl 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 Helena to Louisville?
Based on momondo bookings for flights between Helena and Louisville, the leading airline is United Airlines, making up 100% of the total bookings.

Best airlines flying from Helena to Louisville

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

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $268	Free Cancellation	Rating 7.4 8,937 reviews		Search United Airlines flights

French Lick

Elizabethtown

West Baden Springs

Bardstown

Jeffersonville

Shepherdsville

New Albany

Corydon

Elizabeth

Charlestown

Springfield

Brandenburg

Georgetown

Why use momondo?

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

Finding the right flight to Louisville from Helena is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Louisville quick and easy, saving you time and money.

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

momondo does allow users to show only those flights to Louisville from Helena which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Helena and Louisville by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Louisville from Helena are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.