$369 Cheap Flights from Washington (IAD) to Billund (BLL)

View $369 flight on Thu, Apr 9, 2026Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Billund (BLL)

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Cheap Flights from Washington to Billund (IAD-BLL)

Prices were available within the past 7 days and start at $369 for one-way flights and $465 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Scandinavian Airlines
Wed, Mar 18 - Thu, Mar 26
IAD
Washington
BLL
Billund
$465 Roundtrip, found 1 day ago
$465
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Wed, Mar 18 from Washington to Billund, returning Thu, Mar 26, priced at $465 found 1 day ago
Icelandair
Thu, Apr 9 - Mon, Apr 13
IAD
Washington
BLL
Billund
$480 Roundtrip, found 4 days ago
$480
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Apr 9 from Washington to Billund, returning Mon, Apr 13, priced at $480 found 4 days ago
Scandinavian Airlines
Sat, Dec 6 - Mon, Mar 23
IAD
Washington
BLL
Billund
$501 Roundtrip, found 4 days ago
$501
Roundtrip
found 4 days ago
Select Scandinavian Airlines flight, departing Sat, Dec 6 from Washington to Billund, returning Mon, Mar 23, priced at $501 found 4 days ago
Scandinavian Airlines
Sat, Dec 6 - Thu, Dec 25
IAD
Washington
BLL
Billund
$515 Roundtrip, found 6 days ago
$515
Roundtrip
found 6 days ago
Select Scandinavian Airlines flight, departing Sat, Dec 6 from Washington to Billund, returning Thu, Dec 25, priced at $515 found 6 days ago
Scandinavian Airlines
Mon, Jan 26 - Fri, Jan 30
IAD
Washington
BLL
Billund
$516 Roundtrip, found 1 day ago
$516
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Mon, Jan 26 from Washington to Billund, returning Fri, Jan 30, priced at $516 found 1 day ago
Scandinavian Airlines
Wed, Feb 4 - Mon, Feb 9
IAD
Washington
BLL
Billund
$516 Roundtrip, found 6 hours ago
$516
Roundtrip
found 6 hours ago
Select Scandinavian Airlines flight, departing Wed, Feb 4 from Washington to Billund, returning Mon, Feb 9, priced at $516 found 6 hours ago
Delta
Thu, Nov 6 - Sat, Nov 22
IAD
Washington
BLL
Billund
$521 Roundtrip, found 6 days ago
$521
Roundtrip
found 6 days ago
Select Delta flight, departing Thu, Nov 6 from Washington to Billund, returning Sat, Nov 22, priced at $521 found 6 days ago
Delta
Mon, Mar 30 - Tue, Apr 7
IAD
Washington
BLL
Billund
$523 Roundtrip, found 4 hours ago
$523
Roundtrip
found 4 hours ago
Select Delta flight, departing Mon, Mar 30 from Washington to Billund, returning Tue, Apr 7, priced at $523 found 4 hours ago
Air Canada
Tue, Dec 2 - Sat, Dec 6
IAD
Washington
BLL
Billund
$533 Roundtrip, found 1 day ago
$533
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Dec 2 from Washington to Billund, returning Sat, Dec 6, priced at $533 found 1 day ago
Lufthansa
Mon, Dec 1 - Sat, Dec 6
IAD
Washington
BLL
Billund
$533 Roundtrip, found 1 day ago
$533
Roundtrip
found 1 day ago
Select Lufthansa flight, departing Mon, Dec 1 from Washington to Billund, returning Sat, Dec 6, priced at $533 found 1 day ago

Alternative airports near Billund

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Billund BLL. Cheapest and Closest option available. Average driving time to city center is 7 minutes. Flights from $527
BLL
Billund
CheapestClosest
Average driving time to city center7 min
Flights from $527

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL) cost?
Lock in a cheap one-way flight from $369 or cheap return flight from $465 from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL)?
The cheapest month to fly from IAD to BLL is March, when demand is low. Off-peak season is typically when airlines offer better prices between these airports.
What is the cheapest airline that flies from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL)?
Use the filter tool on Expedia to compare airlines and find the most affordable carrier that'll take you from IAD to BLL. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL)?
There aren't any daily direct flights from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL). But you can choose flights with layovers. Filter your search on Expedia to include one or more stops, and you'll be on your way in no time at all.
What day of the week has the most flights from IAD to BLL?
You'll typically find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL)?
Opt for a flight from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL) that takes off before 3 PM to reduce the risk of cancellations. Departures after this time are on average 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 Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL) last-minute?
Holding off until just before your departure to book your flight from IAD to BLL often results in higher prices. While you may find some last-minute offers, there's no guarantee. Keep your travel plans flexible to maximize your chances of scoring a bargain.
Is it cheaper to book an IAD to BLL flight and hotel package?
Compared with arranging hotels and flights separately, booking an IAD to BLL flight and hotel package with Expedia could lead to significant savings. Better still, having it all in one place will take the hassle out of travel planning. Simply secure your flights and choose from our wide range of stays, then tailor your trip with other add-ons like tours, car rentals and activities.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Billund Airport (BLL)?
If you booked your IAD to BLL flight in the last 24 hours, you may be able to cancel or modify it without any 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 if you want more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Billund
Airlines serving
Air Canada, Air France, British Airways, Delta, KLM, Lufthansa, Scandinavian Airlines, Turkish Airlines, United
Roundtrip price
$465
Distance
3933 mi

Book with confidence

Washington to Billund Flights

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

 

The best time to book a flight from Washington to Billund

Sunday is one of the best days to book for cheap flights from Washington 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 Washington 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 Washington to Billund in 2025. You can also book with separate airlines for your outbound and return journeys, from $369 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 Washington 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 Washington 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.

 

Washington to Billund Flights

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*Available to One Key members.