$417 Find Cheap Flights from Denmark to Washington Dulles Airport - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Dulles Intl 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.
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Cheap Flights from Denmark to Dulles Intl

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denmark to Dulles Intl 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 Denmark to Dulles Intl

Thu, Sep 17 - Thu, Oct 1
Multiple Airlines Logo
8:50 am - 10:52 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
20h 02m2 stops Helsinki-Vantaa Dallas/Fort Worth
Multiple Airlines Logo
8:25 pm - 2:40 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
12h 15m1 stop Madrid Barajas
$569Multiple Airlines
Mon, Sep 7 - Mon, Sep 14
British Airways Logo
5:05 pm - 8:20 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
33h 15m1 stop London Heathrow
British Airways Logo
5:45 pm - 4:50 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
17h 05m1 stop London Heathrow
$570British Airways
Tue, Nov 24 - Thu, Dec 3
Icelandair Logo
12:55 pm - 6:30 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 12:00 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
10h 20m1 stop Reykjavik Keflavik Intl
$578Icelandair
Thu, Nov 26 - Thu, Dec 3
Icelandair Logo
12:55 pm - 6:30 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
11h 35m1 stop Reykjavik Keflavik Intl
Icelandair Logo
7:40 pm - 12:00 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
10h 20m1 stop Reykjavik Keflavik Intl
$578Icelandair
Wed, Aug 26 - Sun, Aug 30
Lufthansa Logo
6:20 am - 1:35 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
13h 15m1 stop Frankfurt am Main
Lufthansa Logo
3:25 pm - 11:35 amIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
14h 10m1 stop Frankfurt am Main
$637Lufthansa
Thu, Sep 17 - Thu, Oct 1
Lufthansa Logo
12:25 pm - 8:00 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
13h 35m1 stop Frankfurt am Main
Lufthansa Logo
10:20 pm - 6:40 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
14h 20m1 stop Munich Franz Josef Strauss
$639Lufthansa
Tue, Sep 8 - Tue, Sep 15
United Airlines Logo
6:20 am - 8:00 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
19h 40m1 stop Frankfurt am Main
United Airlines Logo
5:28 pm - 2:10 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
14h 42m2 stops Boston Logan Intl Zurich
$669United Airlines
Sun, Sep 6 - Tue, Nov 17
United Airlines Logo
6:20 am - 3:15 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
14h 55m1 stop Frankfurt am Main
United Airlines Logo
12:36 pm - 2:10 pmIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
19h 34m2 stops Newark Zurich
$669United Airlines
Thu, Oct 22 - Mon, Nov 2
Scandinavian Airlines Logo
2:25 pm - 5:00 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
8h 35mnonstop
Scandinavian Airlines Logo
8:30 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
8h 05mnonstop
$715Scandinavian Airlines
Thu, Nov 12 - Mon, Nov 16
Scandinavian Airlines Logo
1:55 pm - 5:15 pmCPH  Kastrup Copenhagen-IAD Washington, D.C. Dulles Intl
9h 20mnonstop
Scandinavian Airlines Logo
8:30 pm - 10:35 amIAD  Washington, D.C. Dulles Intl-CPH Kastrup Copenhagen
8h 05mnonstop
$718Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for flights to Dulles Intl

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

What is the cheapest flight to Washington Dulles Airport?

These are the best round-trip prices found by users searching on KAYAK in the last 5 days.

In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Billund, at $569 return. The most popular connection is from Copenhagen to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $569 in the last 5 days.

What is the cheapest day to fly to Washington, D.C.?

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

Based on KAYAK data, the cheapest day to fly to Washington, D.C. is Wednesday where round-trip tickets can be as cheap as $722. On the other hand, the most expensive day to fly is Saturday, where round-trip prices are $966 on average.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights to Washington, D.C. Dulles Intl Airport, 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 to Washington, D.C. Dulles Intl Airport is February, where tickets cost $522 on average for return flights. On the other hand, the most expensive months are July and June, where the average cost of tickets from Denmark is $835 and $830 respectively. For one-way flights, the best month to travel is January with an average price of $538.

What is the cheapest time of day to fly to Washington, D.C. Dulles Intl Airport?

The average price for all round-trip flights to Washington, D.C. Dulles Intl Airport depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the afternoon, when round-trip flights cost $760 on average. The most expensive time of day to fly to Washington, D.C. Dulles Intl Airport is generally in the evening, which is peak travel time and where the average cost of a ticket is $812.

What is a good deal for flights to Washington, D.C. Dulles Intl Airport?

If you’re looking for cheap airfare to Washington, D.C. Dulles Intl Airport, 25% of our users found tickets to Washington, D.C. Dulles Intl Airport for the following prices or less: From Copenhagen $760 round-trip.

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

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

To get a below average price, you should book around 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low season

January

Cheapest flight

$417
Best time to beat the crowds with an average 20% drop in price.
Most popular time to fly with an average 33% increase in price.
Flight from Billund to Washington, D.C.

FAQs - booking Washington Dulles Airport flights

  • What is the cheapest flight to Washington Dulles Airport?

    In the last 5 days, the cheapest flight deal to Washington Dulles Airport was found on the route from Billund, at $569 return. The most popular connection is from Copenhagen to Washington Dulles Airport and KAYAK users have found round-trip deals for as low as $569 in the last 5 days.

  • How far is Washington, D.C. Dulles Intl Airport from central Washington, D.C.?

    There are 22 miles between Washington, D.C. city center and Washington, D.C. Dulles Intl Airport.

  • How much is a flight to Washington, D.C.?

    On average, a flight to Washington, D.C. costs $909. The cheapest price found on KAYAK in the last 2 weeks cost $683 and departed from Kastrup Copenhagen Airport.

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

    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 to Washington Dulles Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to 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 to Washington Dulles Airport?

    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 Washington Dulles Airport with an airline and back with another airline.

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

    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 Washington Dulles Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Washington, D.C. Dulles Intl Airport are there each week?

    Each week there are around 7,673 direct flights from within Denmark to Washington, D.C. Dulles Intl Airport. The most common day for departures is Sunday, with 19% of flights taking off on this day.

Top tips for finding cheap flights to Washington Dulles Airport

  • Looking for cheap airfare to Washington Dulles Airport? 25% of our users found round-trip tickets to Washington Dulles Airport for the following prices or less: From Copenhagen $800
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Washington Dulles Airport flight deals.

Reviews of the top 4 airlines serving from Denmark to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Denmark to Washington, D.C.. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Dulles Intl? 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.
7.4
Scandinavian AirlinesOverall score based on 1949 reviews
7.3Comfort
6.8Food
7.7Boarding
6.8Entertainment
8.0Crew
Airline reviews

not good missed my connection SAS did not leave me anywhere near enough time to make my connection. Ended up adding about 10 hours to my travel day

2.0 Mediocreschuyler, Aug 2026
Read more Scandinavian Airlines reviews

not good missed my connection SAS did not leave me anywhere near enough time to make my connection. Ended up adding about 10 hours to my travel day

I travelled business class with my spouse from ATL to Helsinki and back from Riga to ATL. The seating was not very comfortable. Bread crumbs and left over disposable items from previous passengers were not picked up. The cabin was extremely noisy as the crew keep talking and laughing all night long making it difficult to relax or let alone sleep. Crew must make sure to keep the cabin as quiet as possible. The seating should add a privacy features such as curtain or something. Food choices are limited and average at best. I travel very frequently but this was my first time with SAS. I would try to avoid travelling with SAS in future and would not recommend it to my friends or family. My return flight Aug. 9th was cancelled for no specific given reason or explanation. The new flight on Aug 10th was delayed by 45 mins even though it took off on time. Sorry, if you are disappointed to read my survey but I have to speak the truth. Nayyer Islam, MD

From my last trip nothing except for the luggage fee

I loved the food. The veggie option was delicious. I also appreciate the sense of sustainability with Airline's choice of packaging. Hosteses were super friendly and courtous. I also appreciate that checked luggage was included with the airfare. The entertainment portal could see some improvements. The touch screen responsiveness in Solitaire game was poor and it doesn't seem to be hardware related as other screen functions were just fine. It was hard to move cards between piles and system skipped cards from the deck. Also, there was no option for winnable vs random draw. Sudoku was cumbersome regarding touch screen, too. In addition, the difference between medium and difficult levels in Sudoku was huge. Medium was actually too easy.

This was my return flight and it was 100% different than my out bound. Better seats and great food for sure. As i was disappointed last time but this time they made up for it

It was ok but no WiFi I think I’ll fly Iceland air next time

All went smoothly. That's what I want on a long flight.

Overall, this flight team did a fantastic job. They came often with the water, coffee and tea. There was no meal choice in coach, but the lasagna lunch was decent. The sandwich snack just before landing was tasty. The baggage bins were large, so no trouble holding carry on luggage.

I child in Buisness cried almost the entire flight. And I had a conference to attend but couldn’t sleep because of that, which was the main reason for getting a Buisness ticket. Also the food is not as good as before. The sheets underneath is also not there anymore. The staff was nice.

Food was good. Flight attendants were friendly and helpful. We felt that a lot of the movies on board were old movies.

Very kind Lufthansa agent somehow gave us all no charge extra business class seats and helped us get home rested and happy.

The lounge was not accessible because it was located before the passport control, and backtracking was impossible.

The flight to America was freezing. The overnight flight back to the UK was boiling hot and the cabin stank of toilet or occasionally perfume, even though I was several rows back from either bathroom. Food was tiny portions. Two small pieces of tough and dry beef in random gravy with pretend mashed potato raking up most of it. Very little veg. Salad was ok. Wooden cutlery broke within minutes of using. Lots of old films for entertainment. Some new ones. Generally a bit rubbish.

Entertainment center did not work and no electric available at seat for 11 hour flight. Didn’t have access to overhead light or call button. Food was tasteless and had a high salt (27 %) of recommended daily salt intake

What would be infinitely better if for Kayak to not offer this flight as if it was completely different airlines rather than United and then filtering me through some creepy discount site.

Our flight was great with an unexpected upgrade. However, four days into our travel we are still without a piece of luggage. The bag tracker has not been accurate, the airline is not communicating with me or the luggage delivery service and no one is willing to take responsibility or guarantee any kind of support or reimbursement. Unfortunately, we do not have the option to easily shop to replace items as we are currently on a cruise. I have been very disappointed by United Airlines response.

The flight was canceled. I couldn't get on another flight. Meal voucher wouldn't work. The whole experience was a clusterfuck.

It was terribly delayed with zero support from united airlines. I reached at 1 am in the night. They did not provide any option to change the flights.

Flight was delayed 14 hours due to DC air show and weather. Missed connection to MUC.

Horrible I am at almost 2,000,000 miles on United. This was probably the worst flight ever. An hour and a half before takeoff I get a message that they’re changing the plane and I no longer have a seat in Polaris business Supposedly, there was a problem with the plane, but then there was no other plane Finally, they decided to bring a plane from Newark to Washington Dulles Of course the original flight was at 10:45 PM so by the time the plane got there it was 12:30 AM. It had not been cleaned. It had not been catered. They don’t really have people available to do those things when it’s not pre-programmed at 1 o’clock in the morning. The crew had to be changed And the new plane held 28 fewer people than the scheduled plane There is no way you can hate United Airlines enough The people at the gate were actually just fine, but it was management who was completely useless And did they send extra help to the people at the gate? Did they send supervisors? Of course not. Just don’t take United find somebody else or buy a boat

Crew was wonderful. I knew going in that the seats were not lie-flat in business class, but they reclined less than I expected. To save on waste, you have to ask for which pieces of the amenity kit you are interested in, which they will gladly give to you. Flight was fairly short, so no issues. I did have one piece of luggage not show up at terminal on landing. They were great about looking for it. Found it...it actually did make the flight and was listed as "not picked up" (?????--we stayed over an hour looking for it, including in the odd-sized baggage claim.) Since "not picked up" they will not ship to my house and I have to go back to airport, which is in another town. I probably could have pressed this issue, but headed back to airport for another flight anyway, so will pick up then.

It didn't happen. Icelandair cancelled the flight from Nuuk, Greenland to Reykjavik, Iceland so I couldn't fly to Portland. Additionally Icelandair rebooked me on a flight that got cancelled too.

How can the airline deploy the oldest 757-200 with a broken down entertainment system and no WiFi for a cross Atlantic 7:50 hr torture chamber experience?? My seat 3A couldn’t be reclined. The footrest was flimsy and useless. And there’s no leg support unlike their newer 737-Max which they lavish on intra-Europe routes. Shame!!

Only drinks included in economy class was water and coffee seat on the 737 were hard as rock. The landing and passport control in Iceland are the worst I have ever seen. 2 hours to clear customs ???? 3 attendants at pass port control out of more than a dozen closed. I” ll never fly to Iceland or transfer through this airport again.

The ticket was reserved in my name but not paid for by underpricer. Alaska airlines was unable to issue my ticket (could not connect the ticket with the PNR) due to an error with underpricer and I spent the better part of 2 hours at the ticket counter trying to rectify.

Terrible way of boarding in Reykjavik. Seats comfortable. Meal was good.

The flight itself was fine, even with a one-hour delay leaving on the Reykjavik tarmac (the lost time was made up during flight). Our experience at the Reykjavik airport on arrival was terrible due mostly to the one hour it took for passport control. Only two stations were open for our category, and the room was full with a huge crowd.

The real reason why the flying experience with Icelandair ---was mediocre was because of not being able to enter DC airspace yesterday evening. This obviously was out of your control and do realize this is a safety issue. I did notice---that everything was being done to get us to Washington Dulles and we did arrive at Dulles SAFELY with just a 4 hour delay. Thank you!

Horrible. I was placed on standby for no reason and they would no allow me to fix the seating into the gate. Plane was hot. Entertainment was abysmal. Seats only take old USB or even older jack plugs — not lightening plugs like all modern phones. Food is pay as you go and awful. Seats were small and uncomfortable. I do not recommend Iceland air.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

I was never able to use this flight. I booked my flight through KAYAK, using cheapfaresflights, and the agency did not book the ticket correctly. When I went to check in for my flight in Rome, my details had changed. My name was incorrect , and the itinerary was not what I had paid for. I was unable to board the flight and I had to purchase a second ticket at considerable expense. Unfortunately, no one at KAYAK or Cheapfaresflights was able to help me. They both shifted the blame on United Airlines, United Airlines was able to provide me a full detail that the error occurred on the travel agencies side. I consider this fraud and will pursue it further.

Cancelled 90 min AFTER Departure! We had to deplane and wait another hour plus for the flight to be shown as cancelled for the customer service team. There were many many angry customers.

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Lufthansa flight LH04414 from Munich to Washington DC, was fine. Efficient and safe!

Bumpy ride, not Lufthansa‘s fault. Crew managed a situation over a back rest to far down well. It was two iles behind me. The person putting the seat down, against the other person’s knees, was quite rude and belligerent and needed to be told in a no nonsense matter to stopp. Male flight attendant did good job.

Had a few open seats and could use it for a great rest ful journey

It was very good. Service was friendly and efficient, and food was good.

We left 1.5 hours late therefore missing my connection. The airline didn’t give vouchers.

Food could have something without dairy, I couldn't eat anything. Tv for both seats was malfunctioning. They have one bottle of ginger ale for entire plane.... and I paid extra for these seats...very disappointed

We took two long flights with Lufthansa, both were delayed making us miss our connecting flights. Lufthansa took care of the first one. The second was a switch to United and figuring out how to rebook was not a pleasant experience.

Traveling to a place near Dulles Intl?

Book flights to Dulles Intl if you plan to visit one of these locations
Winchester
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Springfield
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Greenbelt
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Ellicott City
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Everything you need to know for your flight to Dulles Intl

Information on the airport you'll fly into in Washington, D.C.