$448 Cheap Flights from Louisville (SDF) to Billund (BLL)

View $448 flight on Mon, Mar 2, 2026Opens in a new window

Popular airlines from Louisville Intl. Airport (SDF) to Billund (BLL)

Cheap Flights from Louisville to Billund (SDF-BLL)

Prices were available within the past 7 days and start at $448 for one-way flights and $705 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Lufthansa
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$705 Roundtrip, found 20 hours ago
$705
Roundtrip
found 20 hours ago
Select Lufthansa flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $705 found 20 hours ago
Lufthansa
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$710 Roundtrip, found 20 hours ago
$710
Roundtrip
found 20 hours ago
Select Lufthansa flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $710 found 20 hours ago
Scandinavian Airlines
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$743 Roundtrip, found 20 hours ago
$743
Roundtrip
found 20 hours ago
Select Scandinavian Airlines flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $743 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$746 Roundtrip, found 20 hours ago
$746
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $746 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$750 Roundtrip, found 20 hours ago
$750
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $750 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$752 Roundtrip, found 20 hours ago
$752
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $752 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$752 Roundtrip, found 20 hours ago
$752
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $752 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$756 Roundtrip, found 20 hours ago
$756
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $756 found 20 hours ago
British Airways
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$758 Roundtrip, found 20 hours ago
$758
Roundtrip
found 20 hours ago
Select British Airways flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $758 found 20 hours ago
Iberia
Mon, Mar 2 - Fri, Mar 6
SDF
Louisville
BLL
Billund
$930 Roundtrip, found 20 hours ago
$930
Roundtrip
found 20 hours ago
Select Iberia flight, departing Mon, Mar 2 from Louisville to Billund, returning Fri, Mar 6, priced at $930 found 20 hours ago
Flights from Louisville (SDF) to Billund (BLL)
Origin airport
Louisville Intl.
Destination airport
Billund
Airlines serving
British Airways, Lufthansa, Scandinavian Airlines
Roundtrip price
$704
Distance
4266 mi

Louisville to Billund Flights

The cheapest times to fly from Louisville to Billund

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

 

The best time to book a flight from Louisville to Billund

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

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 Billund in 2025. You can also book with separate airlines for your outbound and return journeys, from $448 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 Billund 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 Billund 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 Billund Airport (BLL) cost?
Lock in a cheap one-way flight from $448 or cheap return flight from $705 from Louisville Intl. Airport (SDF) to Billund Airport (BLL) 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 Billund Airport (BLL)?
The cheapest month to fly from SDF to BLL is March, when demand is low. Off-peak season is generally when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Louisville Intl. Airport (SDF) to Billund Airport (BLL)?
To find the cheapest airline flying from SDF to BLL, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and number of stops. 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 Billund Airport (BLL)?
There are no daily direct flights from Louisville Intl. Airport (SDF) to Billund Airport (BLL). But you can choose flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be cruising above the clouds in no time at all.
What day of the week has the most flights from SDF to BLL?
Generally you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary based on the airline, season 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 Billund Airport (BLL)?
To avoid potential delays on the Louisville Intl. Airport (SDF) to Billund Airport (BLL) route, aim to travel before 3 PM. Later departures 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 Billund Airport (BLL) last-minute?
Booking your plane ticket from SDF to BLL just before your getaway is usually more expensive. However, if you're flexible with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book a SDF to BLL flight and hotel package?
Compared with arranging flights and hotels separately, booking a SDF to BLL flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the stress out of travel planning. Just secure your flights and select from our wide range of stays, then personalize your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Louisville Intl. Airport (SDF) to Billund Airport (BLL)?
If you reserved your SDF to BLL flight within the last 24 hours, you may be able to modify or cancel it without any fees. 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, go to our Customer Service portal for more information.

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*Available to One Key members.