$308 Cheap Flights from Billund (BLL) to Washington (IAD)

View $308 flight on Sun, Jan 11, 2026Opens in a new window

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

Cheap Flights from Billund to Washington (BLL-IAD)

Prices were available within the past 7 days and start at $308 for one-way flights and $536 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Dec 24 - Sun, Dec 28
BLL
Billund
IAD
Washington
$536 Roundtrip, found 3 days ago
$536
Roundtrip
found 3 days ago
Select United flight, departing Wed, Dec 24 from Billund to Washington, returning Sun, Dec 28, priced at $536 found 3 days ago
United
Wed, Dec 24 - Thu, Jan 1
BLL
Billund
IAD
Washington
$536 Roundtrip, found 4 days ago
$536
Roundtrip
found 4 days ago
Select United flight, departing Wed, Dec 24 from Billund to Washington, returning Thu, Jan 1, priced at $536 found 4 days ago
United
Wed, Dec 24 - Thu, Jan 8
BLL
Billund
IAD
Washington
$537 Roundtrip, found 2 days ago
$537
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 24 from Billund to Washington, returning Thu, Jan 8, priced at $537 found 2 days ago
United
Mon, Jan 19 - Sat, Feb 7
BLL
Billund
IAD
Washington
$539 Roundtrip, found 2 days ago
$539
Roundtrip
found 2 days ago
Select United flight, departing Mon, Jan 19 from Billund to Washington, returning Sat, Feb 7, priced at $539 found 2 days ago
United
Wed, Jan 21 - Sat, Feb 7
BLL
Billund
IAD
Washington
$540 Roundtrip, found 2 days ago
$540
Roundtrip
found 2 days ago
Select United flight, departing Wed, Jan 21 from Billund to Washington, returning Sat, Feb 7, priced at $540 found 2 days ago
United
Wed, Dec 24 - Sat, Jan 10
BLL
Billund
IAD
Washington
$542 Roundtrip, found 2 days ago
$542
Roundtrip
found 2 days ago
Select United flight, departing Wed, Dec 24 from Billund to Washington, returning Sat, Jan 10, priced at $542 found 2 days ago
Delta
Tue, Jan 13 - Tue, Jan 27
BLL
Billund
IAD
Washington
$553 Roundtrip, found 2 days ago
$553
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 13 from Billund to Washington, returning Tue, Jan 27, priced at $553 found 2 days ago
British Airways
Tue, Dec 23 - Tue, Jan 6
BLL
Billund
IAD
Washington
$610 Roundtrip, found 2 days ago
$610
Roundtrip
found 2 days ago
Select British Airways flight, departing Tue, Dec 23 from Billund to Washington, returning Tue, Jan 6, priced at $610 found 2 days ago
Scandinavian Airlines
Thu, Dec 25 - Wed, Jan 7
BLL
Billund
IAD
Washington
$669 Roundtrip, found 2 days ago
$669
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Thu, Dec 25 from Billund to Washington, returning Wed, Jan 7, priced at $669 found 2 days ago
Lufthansa
Mon, Dec 22 - Tue, Dec 30
BLL
Billund
IAD
Washington
$718 Roundtrip, found 3 days ago
$718
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Mon, Dec 22 from Billund to Washington, returning Tue, Dec 30, priced at $718 found 3 days ago

Alternative airports near Washington

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

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $550
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $550

Frequently asked questions

How much does a flight from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD) cost?
Get a cheap one-way flight from $308 or cheap return flight from $536 from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from BLL to IAD is December, when there's less demand. Off-peak months are usually when better flight deals are available between these airports.
What is the cheapest airline that flies from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD)?
Use the filters on Expedia to compare airlines and find the cheapest carrier that'll fly you from BLL to IAD. Then, sort your results by "Price (lowest to highest)" to score a great deal.
How many flights per day from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD)?
You'll need to hop on a flight with a layover if you're traveling from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD). Direct flights don't operate daily on this route. However, simply filter your search to include one or more stops to discover the best option for your trip.
What day of the week has the most flights from BLL to IAD?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can change depending on the time of year, 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 Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD)?
Choose a flight from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures after this hour have a 22% higher chance of being canceled, on average.**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 Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD) last-minute?
Waiting until just before your trip to book your flight from BLL to IAD often results in higher prices. Although you may find some last-minute deals, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of scoring a bargain.
Is it cheaper to book a BLL to IAD flight and hotel package?
You can save money by securing a BLL to IAD flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After choosing your ideal accommodations and flights, you can add extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Billund Airport (BLL) to Washington Dulles Intl. Airport (IAD)?
In most cases, you can cancel or modify your BLL to IAD flight. However, additional fees may apply, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's policies and fees on flight changes, or if you'd like further details, go to our Customer Service portal.

Travel information

Origin airport
Billund
Destination airport
Washington Dulles Intl.
Roundtrip price
$536
Distance
3933 mi

Book with confidence

Billund to Washington Flights

The cheapest times to fly from Billund to Washington

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

 

The best time to book a flight from Billund to Washington

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

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 Billund to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $308 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 Billund to Washington 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 Billund to Washington 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.

 

Billund to Washington Flights

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*Available to One Key members.