$267 Find Cheap Flights from Washington Dulles Airport to Denmark

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 Denmark departing on 10/10. 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

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Cheap Flights from Dulles Intl to Denmark

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Copenhagen
Copenhagennonstop$615
Billund
Billund1 stop$776
Aarhus
Aarhus1 stop$829
Copenhagen
Copenhagennonstop$615
Billund
Billund1 stop$776
Aarhus
Aarhus1 stop$829

Book Cheap Dulles Intl to Denmark Plane Tickets

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

Sun, Jul 19 - Thu, Jul 23
Scandinavian Airlines Logo
8:20 pm - 10:10 am
IAD
-
CPH
7h 50mnonstop
Scandinavian Airlines Logo
2:25 pm - 5:00 pm
CPH
-
IAD
8h 35mnonstop
$615Scandinavian Airlines
Sun, Oct 25 - Sat, Oct 31
Icelandair Logo
8:40 pm - 3:15 pm
IAD
-
CPH
13h 35m
1 stop
Icelandair Logo
5:05 pm - 7:30 pm
CPH
-
IAD
31h 25m
1 stop
$616Icelandair
Sun, Oct 25 - Tue, Nov 3
Icelandair Logo
8:40 pm - 11:45 am
IAD
-
CPH
10h 05m
1 stop
Icelandair Logo
12:55 pm - 6:30 pm
CPH
-
IAD
11h 35m
1 stop
$619Icelandair
Sun, Jul 19 - Mon, Jul 27
Scandinavian Airlines Logo
8:20 pm - 10:10 am
IAD
-
CPH
7h 50mnonstop
Scandinavian Airlines Logo
2:25 pm - 5:00 pm
CPH
-
IAD
8h 35mnonstop
$622Scandinavian Airlines
Fri, Aug 14 - Thu, Dec 10
Icelandair Logo
11:20 pm - 6:20 am
IAD
-
CPH
25h 00m
1 stop
Icelandair Logo
12:55 pm - 6:30 pm
CPH
-
IAD
11h 35m
1 stop
$623Icelandair
Mon, Aug 24 - Mon, Sep 7
TAP AIR PORTUGAL Logo
10:35 pm - 2:05 am
IAD
-
CPH
21h 30m
1 stop
TAP AIR PORTUGAL Logo
5:40 pm - 3:10 pm
CPH
-
IAD
27h 30m
1 stop
$626TAP AIR PORTUGAL
Mon, Aug 24 - Mon, Aug 31
TAP AIR PORTUGAL Logo
10:35 pm - 2:05 am
IAD
-
CPH
21h 30m
1 stop
TAP AIR PORTUGAL Logo
5:40 pm - 8:35 pm
CPH
-
IAD
32h 55m
1 stop
$633TAP AIR PORTUGAL
Wed, May 13 - Wed, May 27
Delta Logo
6:15 pm - 4:25 pm
IAD
-
BLL
16h 10m
1 stop
Delta Logo
6:00 am - 4:31 pm
BLL
-
IAD
16h 31m
2 stops
$786Delta
Tue, May 12 - Tue, May 19
Delta Logo
11:15 am - 9:35 am
IAD
-
BLL
16h 20m
2 stops
Delta Logo
11:45 am - 11:38 pm
BLL
-
IAD
17h 53m
2 stops
$795Delta
Wed, May 13 - Wed, May 27
United Airlines Logo
9:45 am - 2:10 pm
IAD
-
BLL
22h 25m
2 stops
United Airlines Logo
6:00 am - 8:29 pm
BLL
-
IAD
20h 29m
2 stops
$803United Airlines
Booking Insights

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

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

What is the cheapest Washington, D.C. Dulles Intl Airport to Denmark flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Denmark from Washington, D.C. Dulles Intl Airport found in the last 72 hours was to Copenhagen, at $584 round-trip. The most popular route is from Washington, D.C. Dulles Intl Airport (IAD) to Copenhagen (CPH), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $584.

What is the cheapest time of day to fly to Denmark?

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

The cheapest time of day to fly to Denmark is generally in the evening, when round-trip flights cost $479 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Denmark is generally at night, which is peak travel time and where the average cost of a ticket is $650.

Can I save money by flying with a layover from Washington, D.C. Dulles Intl Airport to Denmark?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $631, prices are generally cheapest when you fly direct.

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

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 Denmark, 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 Denmark is January, when tickets cost $269 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $564 and $493 respectively.

What’s the cheapest day of the week to fly from Washington Dulles Airport to Denmark?

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

If your flying dates are flexible, you should consider flying to Denmark on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Friday is the most expensive day to fly from Washington Dulles Airport to Denmark. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. Dulles Intl Airport to Denmark, 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 on the flight from Washington, D.C. Dulles Intl Airport to Denmark, you should book around 2 weeks before departure, which saves you about 11% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 15 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$267
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Washington Dulles Airport to Copenhagen

FAQs - booking Denmark flights

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

    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 Denmark.

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

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

    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 from Washington Dulles Airport to Denmark 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 from Washington Dulles Airport to Denmark?

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

Top tips for finding cheap flights to Denmark

  • Looking for a cheap flight? 25% of our users found tickets from Washington Dulles Airport to the following destinations at these prices or less: Copenhagen $460 one-way - $690 round-trip

Reviews of the top 5 airlines serving from Dulles Intl to Denmark

 
Need help choosing which airline to fly with from Dulles Intl to Denmark? 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 1512 reviews
8.4Crew
7.1Entertainment
7.3Food
7.8Boarding
7.7Comfort
Airline reviews

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

6.0 Goodpuravi, Apr 2026
MLA - AMS
Read more KLM reviews

There were no charge points for phones on the economy seats. The seats were comfortable overall. Food was okay.. flight was on time

The flight was delayed. The aircraft was unclean. Promised seat was not given due to change in Aircraft. Not one crew on ground was in a position to give any response. Amsterdam Airport is AVIODABLE Over crowded. Over Expensive. Poor Services.

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

It was really nice journey i personally recommend klm flight

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

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

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

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.

Excellent business class seats, service and food. No airline does it better.

The only negative thing was boarding a Copenhagen-bound flight in Toronto. The middle aged woman at the desk gave me some bad time, claiming they wouldn't allow me to board the flight, switching to russian in the process. After I asked her to speak English and explained her that I had to reroute with the airline due to flight cancelations that where beyond my contro and will be leaving the Shengen zone promptly, she told me I had to check in my small bag because the flight was full and they needed someone to give up their cabin luggage. After I refused, she told me she would have to check my bag if it fits the allowed dimensions, which it did. I understand she's not an SAS employee, I understand she needs to check the documents and also make sure there's enough room for overhead bags on a plane. What really made me mad was her hostike tone and the beyond poor communication skills. Basic politeness would go a long way.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

Crew members were excellent. The seat wasn’t the best as well as a food options.

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.

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..

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

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...

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

Vegetarian selection could be better. Bread was too hard to chew.

Crew was friendly and competent. Food, wine, and entertainment were excellent except the raw tuna on the flight to Split. Recommend against serving that - at least as the only option. Many medical conditions do not allow people to eat raw fish.

United didn’t even try to hold the flight for me. They knew I had a tight connection and when I arrived at the gate less than 10 mins after final boarding the flight had already gone. The gate agent wasn’t even notified that I was on my way. She was told I wasn’t at the airport

Good quick flight on a small but comfortable plane. I'm 6'3 and had plenty of space.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Wifi took a while to kick in and we had a maintenance issue that took over 40 mins at the gate in Washington before pulling back

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Ineffective communication with United resulted in lost baggage. Their Baggage Tracing counter at MUC was shut down from 11:00-14:15 on my arrival. Undertrained, underinformed staff had me Running all over MUC to find someone to help me to no avail. Staff was rude, unhelpful, and unable to effectively use the systems they did have operational. They refused to contact United in any way or provide any accommodation or other resources while I waited for my luggage. This has destroyed my downstream itinerary. If they had even the slightest visibility I may have been able to reschedule/plan, but again, their staff provided nothing, and did nothing more than their website, which doesn’t even work on a standard phone browser. Miserable failure at all levels that weren’t associated with the operation of the aircraft.

Sat next to a one year old. She crawled all over the place and made me laugh.

I had no idea that my ticket only paid for my right to get on the plane. They charged me $130 for my carry-on bag because it was 1 inch too big she claimed but it wasn’t! Then they wanted another fee for everything. I had no idea that Icelandair had changed to such a bargain basement airline. I was very disappointed.

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

Waiting area on top of stairs before Boarding the bus wasn’t great. Took a long time to load the bus to gate.

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

Nice, quick flight. There were lots of empty seats so they told me I could sit next to the emergency exit where I would have more legroom.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Flight was delayed by several hours and then cancelled due to weather. But Staff was very helpful getting me on a different flight. United should offer food coupons and tooth brush and paste for stranded passengers

I upgraded to the business class cabin. It was the poorest business class I have ever experienced. No access to any business lounge in Tampa airport. Seats are not comfortable. I had a window seat and had to step/crawl over the next seat. Food was mediocre and service below average for business class. Bathroom location was ridiculous. No place to wait. I cannot believe I paid this kind of money and will never fly Lufthansa Discover again. They really should reimburse me somehow.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Was never allowed on and not refunded the full amount of the ticket plus charged a $300 processing fee.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

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.

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

Information on your arrival and departure airports