IAD - BLL

$304 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 11/2. 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

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
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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

Wed, Nov 26 - Mon, Dec 8
Scandinavian Airlines Logo
8:30 pm - 8:45 pmIAD-BLL
18h 15m1 stop
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$458Scandinavian Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Scandinavian Airlines Logo
8:30 pm - 6:45 pmIAD-BLL
16h 15m2 stops
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$527Scandinavian Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
United Airlines Logo
5:15 pm - 10:00 amIAD-BLL
10h 45m1 stop
United Airlines Logo
2:15 pm - 8:15 pmBLL-IAD
12h 00m1 stop
$547United Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Scandinavian Airlines Logo
8:30 pm - 6:45 pmIAD-BLL
16h 15m2 stops
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$550Scandinavian Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Air Canada Logo
9:00 am - 1:25 pmIAD-BLL
22h 25m2 stops
Air Canada Logo
6:45 am - 8:59 pmBLL-IAD
20h 14m2 stops
$553Air Canada
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Tue, Nov 4 - Mon, Dec 1
United Airlines Logo
5:15 pm - 9:45 amIAD-BLL
10h 30m1 stop
United Airlines Logo
2:15 pm - 4:21 pmBLL-IAD
32h 06m2 stops
$566United Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
Lufthansa Logo
10:20 pm - 11:15 pmIAD-BLL
18h 55m1 stop
Lufthansa Logo
6:00 am - 3:50 pmBLL-IAD
15h 50m1 stop
$573Lufthansa
Find Deal
Wed, Sep 10 - Wed, Sep 17
Lufthansa Logo
5:16 pm - 12:25 pmIAD-BLL
13h 09m2 stops
Lufthansa Logo
6:00 am - 3:50 pmBLL-IAD
15h 50m1 stop
$577Lufthansa
Find Deal
Wed, Sep 10 - Wed, Sep 17
 Logo
10:20 pm - 11:15 pmIAD-BLL
18h 55m1 stop
 Logo
6:00 am - 3:50 pmBLL-IAD
15h 50m2 stops
Wed, Sep 10 - Wed, Sep 17
 Logo
9:35 am - 10:10 amIAD-BLL
18h 35m2 stops
 Logo
9:05 pm - 1:30 pmBLL-IAD
22h 25m2 stops
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’s the cheapest day of the week to fly from Washington Dulles Airport to Billund?

The average price of all round-trip flights from Washington, D.C. Dulles Intl Airport to Billund clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Billund on a Monday and more expensive on a Wednesday. On your return trip to Washington Dulles Airport, you should consider flying back on a Thursday, and avoid Mondays for better deals.

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 November, where tickets cost $488 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $1,008 and $889 respectively.

Good to know

Low seasonApril
Cheapest flight$304
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 27% increase in price.
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 $304 for a one-way ticket and $458 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?

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

  • 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 airlines flying 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.
7.8
KLMOverall score based on 1384 reviews
7.7Comfort
7.1Entertainment
7.3Food
7.8Boarding
8.4Crew
Airline reviews

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

10.0 ExcellentAlistair, Aug 2025AMS - EDI
Read more KLM reviews

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

The baggage drop-off in Stuttgart is bad: after online check-in you cannot use the automated baggage drop off as indicated on the website. You can use the terminals but have to cue to 1 of three open and slowly working counters to drop the bags. took about 45 minutes wait time.

My flight was delayed by 6 hours then I missed BOTH of my connecting flights, I then had to stay in the AIRPORT at JFK because soooooo many people also suffered from missing flights and there was no hotels available. I would like to be compensated for this experience! I had to stay in the airport for over 16 hours!

Klm start boarding while somw air issue in the plan

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew were excellent, very proffesional, polite and friendly, in flight snack was underwhelming, a packet of cheese biscuits, im sure KLM could run to a sandwich!

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

Transfer at Amsterdam airport is very convenient and the airport is easy to navigate. Boarding was also quick and easy. Cabin crew were excellent and the meals were good, although lacking in options.

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

No choice of food. Needed to pay more even for a can of coke!!!

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I love it the scandavians know hospitality travel and are very friendly peopu

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

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