WAS - BLL

$524 Find Cheap Flights from Washington, D.C. 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 Washington, D.C. to Billund departing on 11/30. 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
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Flight Deals

Cheap Flights from Washington, D.C. to Billund (WAS-BLL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. 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 Washington, D.C. to Billund

Sun, Nov 30 - Fri, Dec 5
Multiple Airlines Logo
10:55 pm - 11:10 pmIAD-BLL
18h 15m2 stops
Multiple Airlines Logo
6:30 am - 8:59 pmBLL-IAD
20h 29m2 stops
$524Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
KLM Logo
6:05 pm - 9:40 amIAD-BLL
9h 35m1 stop
KLM Logo
10:25 am - 4:05 pmBLL-IAD
11h 40m1 stop
$527KLM
Find Deal
Wed, Nov 26 - Mon, Dec 8
United Airlines Logo
5:50 pm - 9:45 amIAD-BLL
33h 55m2 stops
United Airlines Logo
6:45 am - 3:50 pmBLL-IAD
15h 05m1 stop
$533United Airlines
Find Deal
Mon, Mar 2 - Thu, Mar 5
Delta Logo
2:10 pm - 2:35 pmBWI-BLL
18h 25m2 stops
Delta Logo
6:00 am - 5:03 pmBLL-BWI
17h 03m2 stops
$537Delta
Find Deal
Sun, Nov 30 - Fri, Dec 5
Delta Logo
6:05 pm - 1:50 pmIAD-BLL
13h 45m1 stop
Delta Logo
10:25 am - 11:08 pmBLL-IAD
18h 43m2 stops
$538Delta
Find Deal
Sun, Nov 30 - Fri, Dec 5
Air Canada Logo
10:11 pm - 9:40 amIAD-BLL
29h 29m2 stops
Air Canada Logo
6:30 am - 8:59 pmBLL-IAD
20h 29m2 stops
$539Air Canada
Find Deal
Sun, Nov 30 - Fri, Dec 5
United Airlines Logo
10:11 pm - 1:20 pmIAD-BLL
33h 09m2 stops
United Airlines Logo
6:30 am - 11:55 pmBLL-IAD
23h 25m3 stops
$549United Airlines
Find Deal
Fri, Mar 27 - Tue, Mar 31
United Airlines Logo
6:45 pm - 1:20 pmIAD-BLL
13h 35m2 stops
United Airlines Logo
6:00 am - 3:50 pmBLL-IAD
15h 50m1 stop
$656United Airlines
Find Deal
Fri, Dec 12 - Fri, Dec 19
British Airways Logo
6:20 pm - 12:20 pmIAD-BLL
12h 00m1 stop
British Airways Logo
12:55 pm - 7:55 pmBLL-IAD
13h 00m1 stop
$762British Airways
Find Deal
Fri, Mar 27 - Tue, Mar 31
British Airways Logo
7:20 pm - 12:20 pmIAD-BLL
12h 00m1 stop
British Airways Logo
5:05 pm - 5:25 pmBLL-IAD
30h 20m1 stop
$911British Airways
Find Deal

Everything you should know

Top airlines
KLM
Cheapest • from $527 (round-trip)
Delta
Best reviews • 7.9 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
May
Cheapest • 26% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$524
Overall average: $695
Multiple Airlines
Sun 11/30Fri 12/5
IAD - BLL • 2 stops
Cheapest one-way
Multiple Airlines
Thu 10/30
WAS - BLL • multi-stop
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!
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Billund flights

Get data-powered insights and trends into flights from Washington, D.C. 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, D.C. to Billund?

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

When flying from Washington, D.C. to Billund, you should consider leaving on a Monday and avoid Wednesdays if you are looking for the best rates. For your return to Washington, D.C., you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

What is the cheapest month to fly from Washington, D.C. 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. 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. to Billund is May, where tickets cost $471 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $871 and $835 respectively.

Good to know

Low seasonFebruary
Cheapest flight$524
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly with an average 31% increase in price.
Flight from Washington Dulles Airport to Billund

When to book flights from Washington, D.C. to Billund

Are your dates flexible? Find out the best times to travel from Washington, D.C. 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 flights from Washington, D.C. to Billund

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

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Billund was $524 for a round-trip ticket.

  • Do I need a passport to fly between Washington, D.C. and Billund?

    Yes, you’ll need a passport to travel to Billund from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Billund?

    When flying out of Washington, D.C. you will be using one of these airports: Washington, D.C. Reagan-National or Washington, D.C. Dulles Intl. You will be landing at Billund.

  • Which aircraft models fly most regularly from Washington, D.C. to Billund?

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

  • Which airline alliances offer flights from Washington, D.C. to Billund?

    Star Alliance, and SkyTeam are the airline alliances operating flights between Washington, D.C. 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, Delta or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Billund are Delta and Scandinavian Airlines. With an average price for the route of $688 and an overall rating of 7.9, Delta is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $639 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Washington, D.C. 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, D.C. to Billund.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Billund from Washington, D.C. 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, D.C. 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, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. 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, D.C. 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 Washington, D.C. 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 Washington, D.C. 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.
7.9
DeltaOverall score based on 7996 reviews
7.9Comfort
7.3Food
7.9Entertainment
8.2Boarding
8.5Crew
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

first of all, the grand person that I tried to upgrade to Business told me there were no seats available. I don't think she really knew how to use the system at all. They were lying to me then I went and sat at my assigned seat and I asked them again if they had seats in business class one of the hostesses proceeded to tell me now the flight is full. The flight was pretty full, but after we took off, there were at least 10 seats in business that they were not occupied so they lied to me basically and I'm really upset about that.

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.

Everything you need to know for your flight from Washington, D.C. to Billund

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