$635 Cheap Flights from Louisville (SDF) to Tromsø (TOS)

View $635 flight on Thu, Sep 18, 2025Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Tromsø (TOS-Langnes)

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Cheap Flights from Louisville to Tromsø (SDF-TOS)

Prices were available within the past 7 days and start at $635 for one-way flights and $683 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Tue, Sep 16 - Tue, Sep 23
SDF
Louisville
TOS
Tromsø
$683 Roundtrip, found 1 hour ago
$683
Roundtrip
found 1 hour ago
Select Delta flight, departing Tue, Sep 16 from Louisville to Tromsø, returning Tue, Sep 23, priced at $683 found 1 hour ago
Delta
Thu, Sep 18 - Tue, Sep 23
SDF
Louisville
TOS
Tromsø
$733 Roundtrip, found 1 hour ago
$733
Roundtrip
found 1 hour ago
Select Delta flight, departing Thu, Sep 18 from Louisville to Tromsø, returning Tue, Sep 23, priced at $733 found 1 hour ago
Delta
Wed, Sep 17 - Tue, Sep 23
SDF
Louisville
TOS
Tromsø
$739 Roundtrip, found 1 hour ago
$739
Roundtrip
found 1 hour ago
Select Delta flight, departing Wed, Sep 17 from Louisville to Tromsø, returning Tue, Sep 23, priced at $739 found 1 hour ago
KLM
Tue, Sep 16 - Sat, Sep 27
SDF
Louisville
TOS
Tromsø
$758 Roundtrip, found 2 hours ago
$758
Roundtrip
found 2 hours ago
Select KLM flight, departing Tue, Sep 16 from Louisville to Tromsø, returning Sat, Sep 27, priced at $758 found 2 hours ago
Delta
Thu, Sep 18 - Sat, Sep 27
SDF
Louisville
TOS
Tromsø
$808 Roundtrip, found 2 hours ago
$808
Roundtrip
found 2 hours ago
Select Delta flight, departing Thu, Sep 18 from Louisville to Tromsø, returning Sat, Sep 27, priced at $808 found 2 hours ago
Delta
Wed, Sep 17 - Sat, Sep 27
SDF
Louisville
TOS
Tromsø
$814 Roundtrip, found 2 hours ago
$814
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Sep 17 from Louisville to Tromsø, returning Sat, Sep 27, priced at $814 found 2 hours ago
Delta
Sun, Sep 14 - Tue, Sep 23
SDF
Louisville
TOS
Tromsø
$903 Roundtrip, found 1 hour ago
$903
Roundtrip
found 1 hour ago
Select Delta flight, departing Sun, Sep 14 from Louisville to Tromsø, returning Tue, Sep 23, priced at $903 found 1 hour ago
United
Tue, Sep 16 - Wed, Sep 24
SDF
Louisville
TOS
Tromsø
$927 Roundtrip, found 1 hour ago
$927
Roundtrip
found 1 hour ago
Select United flight, departing Tue, Sep 16 from Louisville to Tromsø, returning Wed, Sep 24, priced at $927 found 1 hour ago
American Airlines
Sun, Sep 14 - Wed, Sep 24
SDF
Louisville
TOS
Tromsø
$938 Roundtrip, found 1 hour ago
$938
Roundtrip
found 1 hour ago
Select American Airlines flight, departing Sun, Sep 14 from Louisville to Tromsø, returning Wed, Sep 24, priced at $938 found 1 hour ago
Scandinavian Airlines
Thu, Sep 18 - Wed, Sep 24
SDF
Louisville
TOS
Tromsø
$1,043 Roundtrip, found 2 hours ago
$1,043
Roundtrip
found 2 hours ago
Select Scandinavian Airlines flight, departing Thu, Sep 18 from Louisville to Tromsø, returning Wed, Sep 24, priced at $1,043 found 2 hours ago
Flights from Louisville (SDF) to Tromsø (TOS)
Origin airport
Louisville Intl.
Destination airport
Langnes
Roundtrip price
$683
Distance
4096 mi

Louisville to Tromsø Flights

The cheapest times to fly from Louisville to Tromsø

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 Louisville to Tromsø are during the month of September. You can find some of the cheapest flights from Louisville to Tromsø with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Louisville to Tromsø

Sunday is one of the best days to book for cheap flights from Louisville to Tromsø: 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 Louisville to Tromsø

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 Louisville to Tromsø in 2025. You can also book with separate airlines for your outbound and return journeys, from $635 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 Louisville to Tromsø 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 Louisville to Tromsø 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 Louisville Intl. Airport (SDF) to Langnes Airport (TOS) cost?
Discover the latest flight deals from SDF to TOS 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 SDF to TOS?
The cheapest flights from SDF to TOS 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 SDF to TOS?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from SDF to TOS. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Louisville Intl. Airport (SDF) to Langnes Airport (TOS)?
Nonstop flights from Louisville Intl. Airport (SDF) to Langnes Airport (TOS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SDF to TOS?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Louisville Intl. Airport (SDF) to Langnes Airport (TOS)?
To land at Langnes Airport (TOS) on time, select a flight that leaves Louisville Intl. Airport (SDF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**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 Louisville Intl. Airport (SDF) to Langnes Airport (TOS) last-minute?
Last-minute fares from SDF to TOS are typically more expensive. To lock in the best prices, start searching for flights as soon as possible. That said, if you're flexible with your travel dates, you may land a cheap fare right before your trip.
Is it cheaper to book a SDF to TOS flight and hotel package?
Compared with arranging flights and hotels separately, booking a SDF to TOS flight and hotel package with Expedia could result in significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and select from our extensive range of hotels, then tailor your trip with other add-ons like activities and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Langnes Airport (TOS)?
If you booked your SDF to TOS flight in the last 24 hours, you may be able to modify or cancel it at no cost. Depending on the airline and the type of ticket you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

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*Available to One Key members.