$949 Cheap Flights from Helsinki (HEL) to Louisville (SDF)

View $949 flight on Fri, Aug 1, 2025Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Louisville Intl. Airport (SDF)

Cheap Flights from Helsinki to Louisville (HEL-SDF)

Prices were available within the past 7 days and start at $949 for one-way flights and $958 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$958 Roundtrip, found 2 days ago
$958
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $958 found 2 days ago
Lufthansa
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$961 Roundtrip, found 2 days ago
$961
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $961 found 2 days ago
Lufthansa
Sat, Sep 13 - Sat, Oct 4
HEL
Helsinki
SDF
Louisville
$964 Roundtrip, found 2 hours ago
$964
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Sat, Sep 13 from Helsinki to Louisville, returning Sat, Oct 4, priced at $964 found 2 hours ago
Lufthansa
Sat, Sep 13 - Sat, Oct 4
HEL
Helsinki
SDF
Louisville
$970 Roundtrip, found 2 hours ago
$970
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Sat, Sep 13 from Helsinki to Louisville, returning Sat, Oct 4, priced at $970 found 2 hours ago
British Airways
Sat, Sep 13 - Sat, Oct 4
HEL
Helsinki
SDF
Louisville
$977 Roundtrip, found 2 hours ago
$977
Roundtrip
found 2 hours ago
Select British Airways flight, departing Sat, Sep 13 from Helsinki to Louisville, returning Sat, Oct 4, priced at $977 found 2 hours ago
Lufthansa
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$980 Roundtrip, found 2 days ago
$980
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $980 found 2 days ago
Lufthansa
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$996 Roundtrip, found 2 days ago
$996
Roundtrip
found 2 days ago
Select Lufthansa flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $996 found 2 days ago
Lufthansa
Sat, Sep 13 - Sat, Oct 4
HEL
Helsinki
SDF
Louisville
$997 Roundtrip, found 2 hours ago
$997
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Sat, Sep 13 from Helsinki to Louisville, returning Sat, Oct 4, priced at $997 found 2 hours ago
Finnair
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$1,198 Roundtrip, found 2 days ago
$1,198
Roundtrip
found 2 days ago
Select Finnair flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $1,198 found 2 days ago
Iberia
Tue, Aug 12 - Tue, Aug 19
HEL
Helsinki
SDF
Louisville
$1,396 Roundtrip, found 2 days ago
$1,396
Roundtrip
found 2 days ago
Select Iberia flight, departing Tue, Aug 12 from Helsinki to Louisville, returning Tue, Aug 19, priced at $1,396 found 2 days ago
Flights from Helsinki (HEL) to Louisville (SDF)
Origin airport
Vantaa
Destination airport
Louisville Intl.
Roundtrip price
$958
Distance
4591 mi

Helsinki to Louisville Flights

The cheapest times to fly from Helsinki to Louisville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Helsinki to Louisville are during the month of August. You can find some of the cheapest flights from Helsinki to Louisville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helsinki to Louisville

Sunday is one of the best days to book for cheap flights from Helsinki to Louisville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Helsinki to Louisville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Helsinki to Louisville in 2025. You can also book with separate airlines for your outbound and return journeys, from $949 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Helsinki to Louisville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Helsinki to Louisville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF) cost?
Discover the latest flight deals from HEL to SDF by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from HEL to SDF?
The cheapest flights from HEL to SDF are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from HEL to SDF?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from HEL to SDF. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF)?
You'll need to hop on a flight with a layover when traveling from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from HEL to SDF?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, such as the time of year and carrier.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF)?
To avoid potential delays on the Vantaa Airport (HEL) to Louisville Intl. Airport (SDF) route, aim to fly before 3 PM. Later departures are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF) last-minute?
Booking your flight from HEL to SDF just before your getaway is typically more expensive. But if you're flexible with your travel times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book a HEL to SDF flight and hotel package?
Compared with arranging flights and hotels separately, booking a HEL to SDF flight and hotel package with Expedia could result in significant savings. Better still, having everything in one easy place will take the stress out of planning your trip. Simply pick your flights and choose from our wide range of stays, then customize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Vantaa Airport (HEL) to Louisville Intl. Airport (SDF)?
If you reserved your HEL to SDF flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more information.

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*Available to One Key members.