IAD - BLL

$414 Find Cheap Flights from Washington Dulles Airport to Billund

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dulles Intl to Billund departing on 12/8. 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
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$414
Typical prices: $557-$640
Scandinavian Airlines
Mon 12/8Wed 12/24
IAD - BLL • 2 stops
Cheapest one-way
Multiple Airlines
Tue 10/14
IAD - BLL • multi-stop
Top airlines
Scandinavian Airlines
Cheapest • from $414 (round-trip)
KLM
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
February
Cheapest • 29% 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, Dec 8 - Wed, Dec 24
Scandinavian Airlines Logo
12:19 pm - 10:35 amIAD-BLL
16h 16m2 stops
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$414Scandinavian Airlines
Find Deal
Mon, Dec 8 - Wed, Dec 24
Scandinavian Airlines Logo
8:30 pm - 10:35 amIAD-BLL
32h 05m1 stop
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$487Scandinavian Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Scandinavian Airlines Logo
7:49 pm - 10:35 amIAD-BLL
32h 46m2 stops
Scandinavian Airlines Logo
3:40 pm - 7:19 pmBLL-IAD
33h 39m2 stops
$495Scandinavian Airlines
Find Deal
Sun, Nov 16 - Sat, Nov 22
Multiple Airlines Logo
9:45 am - 10:00 amIAD-BLL
18h 15m2 stops
Multiple Airlines Logo
10:35 am - 8:26 pmBLL-IAD
15h 51m2 stops
$509Multiple Airlines
Find Deal
Sun, Nov 16 - Sat, Nov 22
Multiple Airlines Logo
9:45 am - 10:00 amIAD-BLL
18h 15m2 stops
Multiple Airlines Logo
6:45 am - 3:50 pmBLL-IAD
15h 05m1 stop
$511Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Scandinavian Airlines Logo
7:49 pm - 10:35 amIAD-BLL
32h 46m2 stops
Scandinavian Airlines Logo
11:05 am - 5:15 pmBLL-IAD
12h 10m1 stop
$516Scandinavian Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Air France Logo
6:50 pm - 11:00 pmIAD-BLL
22h 10m1 stop
Air France Logo
2:30 pm - 4:05 pmBLL-IAD
31h 35m1 stop
$522Air France
Find Deal
Sun, Nov 16 - Sat, Nov 22
Lufthansa Logo
6:00 pm - 1:30 pmIAD-BLL
13h 30m1 stop
Lufthansa Logo
6:45 am - 3:50 pmBLL-IAD
15h 05m1 stop
$529Lufthansa
Find Deal
Fri, Mar 27 - Tue, Mar 31
Air France Logo
7:59 pm - 1:45 pmIAD-BLL
12h 46m2 stops
Air France Logo
10:15 am - 7:12 pmBLL-IAD
14h 57m2 stops
$909Air France
Find Deal
Tue, Dec 30 - Sat, Jan 3
KLM Logo
6:05 pm - 1:50 pmIAD-BLL
13h 45m1 stop
KLM Logo
6:00 am - 4:05 pmBLL-IAD
16h 05m1 stop
$1,344KLM
Find Deal
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.

How much is a round-trip flight from Washington, D.C. Dulles Intl Airport to Billund?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Washington, D.C. Dulles Intl Airport to Billund departing in December.

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 February, where tickets cost $504 (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$414
Best time to beat the crowds with an average 23% drop in price.
Most popular time to fly with an average 3% 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 $414 for a round-trip ticket.

  • 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 $767 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 $687 and an overall rating of 7.4.

  • 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 1402 reviews
7.8Boarding
7.6Comfort
8.4Crew
7.1Entertainment
7.2Food
Airline reviews

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

2.0 MediocreAbisola, Oct 2025CDG - AMS
Read more KLM reviews

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.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

First of all we couldn’t check in online, then we learn at the airport we were on stand by for KLM’s mistake of overbooking. The seats were not comfy at all. Our luggage got lost.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

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.

The flight was cancelled without explanation, and the replacement flight was late

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

1) SAS sent me emails that i could check in but that was just a waste of time because traveling to the us i actually had to check-in at the airport. 2) SAS evidently does not care about vegetarians as it does not offer regular veggie alternatives in the transcontinental flights.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

SAS has too many other airliners. They don't need to exist.

Only one choice for meal seats had no leg room

I didn't book special seats but the ones I got were great. The food wasn't good but on par with other airlines

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 the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I liked everything BUT the temperature. It was freezing and now I am sick.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.