IAD - BLL

$309 Find Cheap Flights from Washington Dulles Airport to Billund

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Billund departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Billund

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Billund, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Billund, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$470
Overall average: $764
Scandinavian Airlines
Mon 4/6Thu 4/9
IAD - BLL • 1 stop
Cheapest one-way
$309
Multiple Airlines
Wed 6/10
IAD - BLL • 3 stops
Top airlines
Scandinavian Airlines
Cheapest • from $470 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Dulles Intl and Billund. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Reykjavik (KEF)
Cheapest • Avg $596 (round-trip)
Amsterdam (AMS)
Shortest trip • 10h 15m (one-way)
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 27% price drop
November
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Billund!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dulles Intl to Billund (IAD-BLL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dulles Intl to Billund that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dulles Intl to Billund

Mon, Apr 6 - Thu, Apr 9
Scandinavian Airlines Logo
8:20 pm - 8:35 pm
IAD
-
BLL
18h 15m
1 stop
Scandinavian Airlines Logo
11:05 am - 5:00 pm
BLL
-
IAD
11h 55m
1 stop
$470Scandinavian Airlines
Mon, Apr 6 - Thu, Apr 9
Scandinavian Airlines Logo
8:20 pm - 8:35 pm
IAD
-
BLL
18h 15m
1 stop
Scandinavian Airlines Logo
9:40 am - 5:00 pm
BLL
-
IAD
13h 20m
2 stops
$477Scandinavian Airlines
Mon, Apr 6 - Thu, Apr 9
Scandinavian Airlines Logo
8:20 pm - 11:55 pm
IAD
-
BLL
21h 35m
1 stop
Scandinavian Airlines Logo
11:05 am - 5:00 pm
BLL
-
IAD
11h 55m
1 stop
$480Scandinavian Airlines
Mon, Apr 6 - Wed, Apr 15
Scandinavian Airlines Logo
8:20 pm - 8:35 pm
IAD
-
BLL
18h 15m
1 stop
Scandinavian Airlines Logo
11:00 am - 5:00 pm
BLL
-
IAD
12h 00m
1 stop
$484Scandinavian Airlines
Mon, Apr 6 - Tue, Apr 14
Scandinavian Airlines Logo
8:20 pm - 11:55 pm
IAD
-
BLL
21h 35m
1 stop
Scandinavian Airlines Logo
3:40 pm - 5:00 pm
BLL
-
IAD
31h 20m
1 stop
$523Scandinavian Airlines
Mon, Apr 6 - Thu, Apr 9
Scandinavian Airlines Logo
8:20 pm - 6:40 pm
IAD
-
BLL
16h 20m
2 stops
Scandinavian Airlines Logo
9:40 am - 5:00 pm
BLL
-
IAD
13h 20m
2 stops
$526Scandinavian Airlines
Sat, Apr 4 - Thu, Apr 9
Scandinavian Airlines Logo
8:20 pm - 10:30 am
IAD
-
BLL
32h 10m
1 stop
Scandinavian Airlines Logo
11:05 am - 5:00 pm
BLL
-
IAD
11h 55m
1 stop
$538Scandinavian Airlines
Tue, Apr 7 - Wed, Apr 15
Delta Logo
9:45 pm - 11:20 am
IAD
-
BLL
31h 35m
1 stop
Delta Logo
10:15 am - 3:35 pm
BLL
-
IAD
11h 20m
1 stop
$549Delta
Tue, Mar 31 - Thu, Apr 9
KLM Logo
5:40 pm - 11:00 pm
IAD
-
BLL
23h 20m
1 stop
KLM Logo
6:00 am - 3:35 pm
BLL
-
IAD
15h 35m
1 stop
$552KLM
Sat, Apr 4 - Tue, Apr 14
Scandinavian Airlines Logo
8:20 pm - 10:30 am
IAD
-
BLL
32h 10m
1 stop
Scandinavian Airlines Logo
3:40 pm - 5:00 pm
BLL
-
IAD
31h 20m
1 stop
$553Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Dulles Intl to Billund flights

Get data-powered insights and trends into flights from Dulles Intl to Billund to help you find the cheapest flights, the best time to fly and much more.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Billund, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Billund is February, where tickets cost $536 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,080 and $889 respectively.

Good to know

Low seasonSeptember
Cheapest flight$309
Best time to beat the crowds with an average 3% drop in price.
Most popular time to fly and prices are also 1% lower on average.
Flight from Washington Dulles Airport to Billund

When to book flights from Dulles Intl to Billund

Are your dates flexible? Find out the best times to travel from Dulles Intl to Billund based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Washington Dulles Airport to Billund flights

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. Dulles Intl Airport to Billund was $309 for a one-way ticket and $470 for a round-trip.

  • Do I need a passport to fly between Washington Dulles Airport and Billund?

    Yes, you’ll need a passport to travel to Billund from Washington Dulles Airport.

  • Which aircraft models fly most regularly from Washington Dulles Airport to Billund?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington Dulles Airport to Billund?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Washington Dulles Airport and Billund, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Billund, KLM or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Billund are KLM and Scandinavian Airlines. With an average price for the route of $777 and an overall rating of 7.7, KLM is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $740 and an overall rating of 7.3.

  • How does KAYAK find such low prices on flights from Washington Dulles Airport to Billund?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington Dulles Airport to Billund.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington Dulles Airport to Billund?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billund from Washington Dulles Airport is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington Dulles Airport to Billund?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Billund with an airline and back to Washington Dulles Airport with another airline. Booking your flights between Washington Dulles Airport and BLL can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington Dulles Airport to Billund?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Billund from Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Dulles Intl to Billund

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Billund. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Dulles Intl to Billund? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.7
KLMOverall score based on 1465 reviews
7.8Boarding
7.6Comfort
7.1Entertainment
7.3Food
8.4Crew
Airline reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

10.0 Excellentsmit, Mar 2026
BLR - AMS
Read more KLM reviews

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Empty seats next to me - wish it had been for a longer flight!!

I’m grateful for the KLM Air France shuttle bus service to Ottawa. However due to construction and other issues related to the chaotic Uber pickup system at YUL, it’s a challenge to find the Kelios bus service to Ottawa. The signs are not clear or even available. No staff to guide passengers. It’s a stressful experience.

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay and had to run between flight to get my connection due to this delay but besides that the overall experience was ok. I arrived with just an hour of delay.

Flight was ok but lack of communication cost me to literally beg to be put on another flight as connecting flight had departed

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

The immigration hall in Amsterdam was understaffed, so passport checking was slower than it should be for a major airport. They need to get the automatic readers up and running for non EU passport holders. Waiting in line after a long flight feels a bit abusive.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

I was unable to rebook a flight booked through cheap flights. Could not rebook, despite premium eco.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

The crew was friendly, the flight was pleasant. Thank you for your service!

Our originating flight into Copenhagen was an hour delayed, causing us to miss our main flight from Copenhagen to the US. There had been snow and we needed to be de-iced, but they seemed very slow getting the flight ready, with no explanation. The delay caused us to be put in with thousands stuck at the airport with an all day wait to get rebooked on a flight 2 days out.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

One of our bags was never put on the flight in Copenhagen. Now that we're home in the USA, my wife is still without most of her clothes and personal items as she returns to work this week. Hoping for a quick resolution, but there seems to be little chance of speaking with an actual person in the process.

really nothing ...uncomfortable seating, cramped ....no better than a US short hopper flight.. never again

Amazing! Everyone was so nice and the food was so good!!

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

Everything you need to know for your flight from Dulles Intl to Billund

Information on your arrival and departure airports