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Dulles Intl

$501+ Cheap flights from Billund (BLL) to Dulles Intl (IAD)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/23. Fares are subject to change and may not be available on all flights or dates of travel.
BLL — IAD
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Billund to Dulles Intl

Cheapest flights from Billund to Dulles Intl
Explore the most affordable flight options available from Billund to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Ticket deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:45 pm
BLL
-
IAD
1 stop24h 50m
British Airways
Sun 3/16:20 pm
IAD
-
BLL
1 stop10h 50m
British Airways
Deal found 1/25$501
This Ticket deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/232:30 pm
BLL
-
IAD
2 stops15h 51m
Air France
Sun 3/16:50 pm
IAD
-
BLL
1 stop22h 10m
Air France
Deal found 1/25$516
This United Airlines deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/1410:35 am
BLL
-
IAD
1 stop15h 40m
United Airlines
Wed 2/1812:36 pm
IAD
-
BLL
2 stops18h 49m
United Airlines
Deal found 1/25$549
This United Airlines deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/126:30 am
BLL
-
IAD
1 stop14h 05m
United Airlines
Mon 2/168:20 am
IAD
-
BLL
2 stops19h 20m
United Airlines
Deal found 1/27$550
This Travelis deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/236:45 am
BLL
-
IAD
2 stops14h 50m
Lufthansa
Sun 3/15:45 pm
IAD
-
BLL
2 stops13h 45m
Lufthansa
Deal found 1/25$584
This Air Canada deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/2310:40 am
BLL
-
IAD
2 stops15h 49m
Air Canada
Sun 3/14:30 pm
IAD
-
BLL
2 stops15h 00m
Air Canada
Deal found 1/25$732
This Flightnetwork deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/262:15 pm
BLL
-
IAD
1 stop31h 35m
Lufthansa
Sat 1/316:00 pm
IAD
-
BLL
1 stop13h 20m
Lufthansa
Deal found 1/25$898
This Flightnetwork deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/262:15 pm
BLL
-
IAD
2 stops36h 11m
Multiple Airlines
Sat 1/316:00 pm
IAD
-
BLL
1 stop13h 20m
Multiple Airlines
Deal found 1/25$904

Find flight deals from Billund to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Billund (BLL) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Round-trip from

$501
(Ticket)

Popular in

June

Cheapest in

February

Average price

$608
From Billund to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 0% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Billund to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Billund to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Billund

Fly to

Dulles Intl

Route

Depart

Return

Price

BillundWashington, D.C.

BLL - IAD

BLLIAD

Billund

Mon 2/23

8:45 pm-3:35 pm

1 stop24h 50m

Washington, D.C. Dulles Intl

Sun 3/1

6:20 pm-11:10 am

1 stop10h 50m

$501

BillundWashington, D.C.

BLL - IAD

BLLIAD

Billund

Sat 2/14

2:15 pm-8:15 pm

1 stop12h 00m

Washington, D.C. Dulles Intl

Wed 2/18

9:00 am-10:00 am

2 stops19h 00m

$549

BillundWashington, D.C.

BLL - IAD

BLLIAD

Billund

Thu 2/12

6:30 am-3:50 pm

1 stop15h 20m

Washington, D.C. Dulles Intl

Mon 2/16

5:15 pm-9:40 am

1 stop10h 25m

$550

BillundWashington, D.C.

BLL - IAD

BLLIAD

Billund

Thu 2/12

6:30 am-2:35 pm

1 stop14h 05m

Washington, D.C. Dulles Intl

Mon 2/16

8:20 am-9:40 am

2 stops19h 20m

$550

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Best time to book a flight from Billund to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Billund with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Billund to Washington, D.C. Dulles Intl Airport

How far ahead should I book a flight from Billund to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Billund to Dulles Intl. Price data was last updated on January 23, 2026.

The price you pay for your flight from Billund to Washington, D.C. Dulles Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 71 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Billund to Washington, D.C. Dulles Intl Airport?

Currently, February is the cheapest month in which you can book a flight from Billund to Washington, D.C. Dulles Intl Airport (average of $409). Flying from Billund to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Billund to Washington, D.C. Dulles Intl Airport?

Related info for your journey

Find useful and relevant information for your journey from Billund to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Billund to Washington, D.C. Dulles Intl?

    If you book a flight to Washington, D.C. Dulles Intl from Billund, you will be flying from Billund, which is the city’s only airport. Billund (BLL) is located 1.7 mi from the center of Billund. There are 0 flights from Billund to Washington, D.C. Dulles Intl per day from 0 different airlines.

  • How long is the flight from Billund to Washington, D.C. Dulles Intl Airport?

    A quick flight from Billund to Washington, D.C. Dulles Intl Airport can take about 12h. British Airways provides one of the quickest options available for as low as $549. Billund and Washington, D.C. Dulles Intl Airport are separated by a distance of 3931 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Billund to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Billund to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Billund to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Billund to Dulles Intl.

  • Can I find deals for business class flights from Billund to Dulles Intl?

    Yes. Cheapflights offers flight deals from Billund to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Billund to Washington, D.C. Dulles Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Billund to Washington, D.C. Dulles Intl Airport (average of $409). Flying from Billund to Washington, D.C. Dulles Intl Airport in January is currently the most expensive (average of $608). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Alexandria
Woodbridge
Tysons
Arlington
Owings Mills
Springfield
Silver Spring
Herndon
Fredericksburg
Hanover
Linthicum Heights
Rockville
Laurel
Towson
Manassas
Largo
Bowie
McLean
Clinton
Upper Marlboro

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