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Cheap flights from Helena to Louisville from $419

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Helena to Louisville departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Helena to Louisville

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
2:35 pm - 10:31 pm
HLN
-
SDF
5h 56m
1 stop
United Airlines Logo
8:00 am - 1:45 pm
SDF
-
HLN
7h 45m
1 stop
$419United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
2:35 pm - 10:31 pm
HLN
-
SDF
5h 56m
1 stop
United Airlines Logo
1:50 pm - 9:30 pm
SDF
-
HLN
9h 40m
2 stops
$424United Airlines
Tue, Aug 25 - Sat, Aug 29
United Airlines Logo
2:30 pm - 9:57 pm
HLN
-
SDF
5h 27m
1 stop
United Airlines Logo
3:20 pm - 8:59 pm
SDF
-
HLN
7h 39m
1 stop
$484United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
2:30 pm - 9:57 pm
HLN
-
SDF
5h 27m
1 stop
United Airlines Logo
12:20 pm - 8:59 pm
SDF
-
HLN
10h 39m
2 stops
$490United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
7:00 am - 11:15 pm
HLN
-
SDF
14h 15m
2 stops
United Airlines Logo
12:20 pm - 8:59 pm
SDF
-
HLN
10h 39m
2 stops
$518United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
7:00 am - 11:15 pm
HLN
-
SDF
14h 15m
2 stops
United Airlines Logo
7:30 am - 8:59 pm
SDF
-
HLN
15h 29m
3 stops
$675United Airlines
Wed, Dec 2 - Sat, Dec 5
United Airlines Logo
2:20 pm - 10:59 pm
HLN
-
SDF
6h 39m
1 stop
United Airlines Logo
8:00 am - 1:45 pm
SDF
-
HLN
7h 45m
1 stop
$766United Airlines
Sat, Aug 8 - Thu, Aug 13
United Airlines Logo
7:00 am - 7:34 pm
HLN
-
SDF
10h 34m
2 stops
United Airlines Logo
7:30 am - 8:59 pm
SDF
-
HLN
15h 29m
3 stops
$773United Airlines
Wed, Dec 2 - Sat, Dec 5
Delta Logo
12:55 pm - 12:26 am
HLN
-
SDF
9h 31m
2 stops
Delta Logo
6:00 am - 12:15 pm
SDF
-
HLN
8h 15m
2 stops
$1,042Delta
Sun, Jul 19 - Sun, Jul 26
United Airlines Logo
6:15 am - 2:28 pm
HLN
-
SDF
6h 13m
1 stop
United Airlines Logo
6:15 am - 1:33 pm
SDF
-
HLN
9h 18m
2 stops
$1,101United Airlines
Sun, Jul 19 - Sun, Jul 26

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United Airlines flights from Helena to Louisville

Our best United Airlines deals on Helena to Louisville flight tickets
United Airlines
Aug 25
HLN2:35 pmHelena
5h 56m
1 stop
SDF10:31 pmLouisville Intl
Aug 29
SDF8:00 amLouisville Intl
7h 45m
1 stop
HLN1:45 pmHelena
$419
United Airlines
Aug 25
HLN2:35 pmHelena
5h 56m
1 stop
SDF10:31 pmLouisville Intl
Aug 29
SDF1:50 pmLouisville Intl
9h 40m
2 stops
HLN9:30 pmHelena
$424
United Airlines
Dec 2
HLN2:30 pmHelena
5h 27m
1 stop
SDF9:57 pmLouisville Intl
Dec 5
SDF3:20 pmLouisville Intl
7h 39m
1 stop
HLN8:59 pmHelena
$484

momondo Fare Finder

 
Customize your flight search to find flights from Helena to Louisville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 22, 2026.
Use the filters below to find and compare flights from Helena to Louisville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 8/25

2:35 pm-10:31 pm

1 stop5h 56m

Louisville Intl

Sat 8/29

8:00 am-1:45 pm

1 stop7h 45m

$419

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Tue 8/25

2:35 pm-10:31 pm

1 stop5h 56m

Louisville Intl

Sat 8/29

1:50 pm-9:30 pm

2 stops9h 40m

$424
Quickest round-trip

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Wed 12/2

2:30 pm-9:57 pm

1 stop5h 27m

Louisville Intl

Sat 12/5

3:20 pm-8:59 pm

1 stop7h 39m

$484

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Wed 12/2

2:30 pm-9:57 pm

1 stop5h 27m

Louisville Intl

Sat 12/5

12:20 pm-8:59 pm

2 stops10h 39m

$490

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Wed 12/2

7:00 am-11:15 pm

2 stops14h 15m

Louisville Intl

Sat 12/5

12:20 pm-8:59 pm

2 stops10h 39m

$518

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Wed 12/2

7:00 am-11:15 pm

2 stops14h 15m

Louisville Intl

Sat 12/5

7:30 am-8:59 pm

3 stops15h 29m

$675

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sat 8/8

2:20 pm-10:59 pm

1 stop6h 39m

Louisville Intl

Thu 8/13

8:00 am-1:45 pm

1 stop7h 45m

$766

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Wed 12/2

7:00 am-7:34 pm

2 stops10h 34m

Louisville Intl

Sat 12/5

7:30 am-8:59 pm

3 stops15h 29m

$773

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sun 7/19

12:55 pm-12:26 am

2 stops9h 31m

Louisville Intl

Sun 7/26

6:00 am-12:15 pm

2 stops8h 15m

$1,042

HelenaLouisville

HLN - SDF

HLNSDF

Helena

Sun 7/19

6:15 am-2:28 pm

1 stop6h 13m

Louisville Intl

Sun 7/26

6:15 am-1:33 pm

2 stops9h 18m

$1,101

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Louisville from

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

What airlines fly to Louisville?

United Airlines, Delta and American Airlines 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 63% 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 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

Fastest flight time

5h 27m

Direct flights

None
The fastest flight from Helena to Louisville takes 5h 27m
There are no direct flights from Helena to Louisville. There are no popular flight routes from Helena to Louisville.
Search flight deals

Frequently asked questions about flying from Helena to Louisville

  • 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 27m.

  • 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 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.

Traveling to a place near Louisville?

Book flights to Louisville if you plan to visit one of these locations
French Lick
Elizabethtown
Jeffersonville
West Baden Springs
Bardstown
Shepherdsville
New Albany
Elizabeth
Charlestown
Corydon
Brandenburg
Georgetown
Springfield

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.

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