$732 Cheap Flights from Louisville (SDF) to Trondheim (TRD)

View $732 flight on Mon, Jun 15, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD)

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Cheap Flights from Louisville to Trondheim (SDF-TRD)

Prices were available within the past 7 days and start at $732 for one-way flights and $839 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Mon, Jan 12 - Mon, Jan 19
SDF
Louisville
TRD
Trondheim
$839 Roundtrip, found 3 days ago
$839
Roundtrip
found 3 days ago
Select Scandinavian Airlines flight, departing Mon, Jan 12 from Louisville to Trondheim, returning Mon, Jan 19, priced at $839 found 3 days ago
Lufthansa
Mon, Jun 15 - Fri, Jun 26
SDF
Louisville
TRD
Trondheim
$1,719 Roundtrip, found 3 days ago
$1,719
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Jun 15 from Louisville to Trondheim, returning Fri, Jun 26, priced at $1,719 found 3 days ago
Finnair
Tue, Jul 7 - Thu, Jul 16
SDF
Louisville
TRD
Trondheim
$1,728 Roundtrip, found 5 days ago
$1,728
Roundtrip
found 5 days ago
Select Finnair flight, departing Tue, Jul 7 from Louisville to Trondheim, returning Thu, Jul 16, priced at $1,728 found 5 days ago
Flights from Louisville (SDF) to Trondheim (TRD)
Origin airport
Louisville Intl.
Destination airport
Vaernes
Roundtrip price
$839
Distance
4088 mi

Louisville to Trondheim Flights

The cheapest times to fly from Louisville to Trondheim

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

 

The best time to book a flight from Louisville to Trondheim

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

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 Trondheim in 2026. You can also book with separate airlines for your outbound and return journeys, from $732 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 Trondheim 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 Trondheim 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 Vaernes Airport (TRD) cost?
Lock in a cheap one-way flight from $732 or cheap return flight from $839 from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD)?
January is the least expensive month to fly from SDF to TRD. Traveling during quieter months is often the key to finding better deals on flights.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD)?
To find the cheapest airline flying from SDF to TRD, use Expedia's filter tool. Customize your search based on what's important to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD)?
There aren't any daily direct flights departing from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD). But you can book flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be on your way in no time.
What day of the week has the most flights from SDF to TRD?
Usually you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* However, this can vary based on the airline, time of year 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 Vaernes Airport (TRD)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Vaernes Airport (TRD) route, aim to fly before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Vaernes Airport (TRD) last-minute?
Holding off until right before your break to book your flight from SDF to TRD generally means paying more. Although you may find some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule to maximize your chances of landing a bargain.
Is it cheaper to book a SDF to TRD flight and hotel package?
Compared with arranging hotels and flights separately, booking a SDF to TRD flight and hotel package with Expedia could lead to significant savings. What's more, managing everything in one place will take the hassle out of planning your trip. Just secure your flights and choose from our extensive range of stays, then customize your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Vaernes Airport (TRD)?
In most instances, you can cancel or reschedule your SDF to TRD flight. However, additional charges may apply, especially if your booking was made more than 24 hours ago. Double-check your itinerary for the airline's rules and fees on flight changes, or if you want further details, head to our Customer Service portal.

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*Available to One Key members.