HLN - SDF

$335 Find Cheap Flights from Helena to Louisville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helena to Louisville departing on 1/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Louisville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Louisville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helena to Louisville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$349
United Airlines
Sat 1/17Wed 1/21
HLN - SDF • 1 stop
Cheapest one-way
$335
United Airlines
Mon 1/5
HLN - SDF • 1 stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Louisville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Helena to Louisville (HLN-SDF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helena to Louisville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helena to Louisville

Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
2:27 pm - 10:24 pmHLN-SDF
5h 57m1 stop
United Airlines Logo
3:22 pm - 9:26 pmSDF-HLN
8h 04m1 stop
$349United Airlines
Find Deal
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
2:27 pm - 10:24 pmHLN-SDF
5h 57m1 stop
United Airlines Logo
5:35 am - 1:41 pmSDF-HLN
10h 06m2 stops
$354United Airlines
Find Deal
Sat, Jan 17 - Wed, Jan 21
United Airlines Logo
6:15 am - 8:28 pmHLN-SDF
12h 13m2 stops
United Airlines Logo
5:35 am - 1:41 pmSDF-HLN
10h 06m2 stops
$429United Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Helena to Louisville flights

Get data-powered insights and trends into flights from Helena to Louisville to help you find the cheapest flights, the best time to fly and much more.

Which airlines fly non-stop between Helena and Louisville?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Helena to Louisville.

There is just one airline that flies from Helena to Louisville direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is $268.

Find deals

Good to know

Cheapest flight$335
Flight from Helena to Louisville

When to book flights from Helena to Louisville

Are your dates flexible? Find out the best times to travel from Helena to Louisville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helena to Louisville

  • What is the cheapest flight from Helena to Louisville?

    In the last 3 days, the lowest price for a flight from Helena to Louisville was $335 for a one-way ticket and $349 for a round-trip.

  • Do I need a passport to fly between Helena and Louisville?

    No, a passport isn't needed to fly from Helena to Louisville. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Helena to Louisville?

    Helena and Louisville are both served by 1 main airport. You will leave Helena from Helena and will be arriving at Louisville Intl.

  • Which aircraft models fly most regularly from Helena to Louisville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helena to Louisville?

    Star Alliance is the only airline alliance operating flights between Helena and Louisville.

  • How does KAYAK find such low prices on flights from Helena to Louisville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helena to Louisville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helena to Louisville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Louisville from Helena is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helena to Louisville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Louisville with an airline and back to Helena with another airline. Booking your flights between Helena and SDF can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helena to Louisville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Louisville from Helena up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Helena to Louisville

 
See real verified KAYAK customer reviews for airlines flying from Helena to Louisville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helena to Louisville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9057 reviews
8.1Crew
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
Airline reviews

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

8.0 ExcellentAnonymous, Nov 2025BTR - IAH
Read more United Airlines reviews

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

Very thoughtful flight attendant offered me water immediately since I had run to make my connection.

Door to door, the crew and staff were amazing. It was a stressful travel day with delays, but they were focused on customers and doing what they could to get us to our destinations.

Even though we were delayed, we were able to make our connection

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

Everything you need to know for your flight from Helena to Louisville

Information on your arrival and departure airports

Helena (HLN)
Louisville (SDF)