HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denmark

$208+ Cheap flights from Dulles Intl (IAD) to Denmark

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CPH
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dulles Intl to Denmark with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Dulles Intl to Denmark

Cheapest flights from Dulles Intl to Denmark
Explore the most affordable flight options available from Dulles Intl to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:40 pm
IAD
-
CPH
1 stop18h 10m
Icelandair
Mon 3/168:50 pm
CPH
-
IAD
1 stop27h 40m
Icelandair
Deal found 1/26$477
This KAYAK deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/37:40 pm
IAD
-
CPH
1 stop27h 35m
Icelandair
Mon 3/168:50 pm
CPH
-
IAD
1 stop27h 40m
Icelandair
Deal found 1/26$478
This FlightHub deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/208:30 pm
IAD
-
CPH
1 stop10h 25m
Icelandair
Sun 10/47:20 am
CPH
-
IAD
1 stop18h 00m
Icelandair
Deal found 1/26$479
This FlightHub deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:30 pm
IAD
-
CPH
1 stop10h 25m
Icelandair
Mon 10/510:35 pm
CPH
-
IAD
1 stop26h 45m
Icelandair
Deal found 1/26$480
This FlightHub deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/38:20 pm
IAD
-
CPH
Nonstop7h 50m
Scandinavian Airlines
Mon 4/132:15 pm
CPH
-
IAD
Nonstop8h 35m
Scandinavian Airlines
Deal found 1/27$482
This oojo deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/38:30 pm
IAD
-
CPH
1 stop19h 15m
Icelandair
Tue 9/82:00 pm
CPH
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/28$483
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/118:30 pm
IAD
-
CPH
1 stop10h 25m
Icelandair
Sat 5/232:00 pm
CPH
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/27$484
This Kiwi.com deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/98:30 pm
IAD
-
CPH
1 stop10h 25m
Icelandair
Sun 5/244:55 pm
CPH
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/27$485
This Kiwi.com deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:30 pm
IAD
-
CPH
1 stop13h 25m
Icelandair
Wed 5/274:55 pm
CPH
-
IAD
1 stop11h 20m
Icelandair
Deal found 1/28$486
This KAYAK deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/128:30 pm
IAD
-
CPH
1 stop19h 15m
Icelandair
Mon 5/257:20 am
CPH
-
IAD
1 stop18h 00m
Icelandair
Deal found 1/28$488
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/48:30 pm
IAD
-
CPH
Nonstop8h 05m
Scandinavian Airlines
Thu 3/121:55 pm
CPH
-
IAD
Nonstop9h 20m
Scandinavian Airlines
Deal found 1/26$490
This oojo deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/48:20 pm
IAD
-
BLL
1 stop32h 15m
Scandinavian Airlines
Sun 4/126:15 pm
BLL
-
IAD
1 stop28h 35m
Scandinavian Airlines
Deal found 1/27$517

Find flight deals from Dulles Intl to Denmark

Keep the following information in mind while searching for Dulles Intl to Denmark flight deals. Data was last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$477
(KAYAK)

One-way from

$208
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$571

Good round-trip deal

$512 or less

Good one-way deal

$384 or less
Provider with most accurate pricing for Washington, D.C. (WAS)-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Kastrup Copenhagen flights.
Search Deals
From Washington, D.C. Dulles Intl to Denmark
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Denmark
Search Deals
Highest demand for flights based on searches. 13% potential increase in price ($93 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Denmark.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Denmark.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dulles Intl to Denmark that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Denmark that are best for you.

Fly from

Dulles Intl

Fly to

Denmark

Route

Depart

Return

Price

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Sun 5/10

8:30 pm-12:55 pm

1 stop10h 25m

Kastrup Copenhagen

Thu 5/21

2:00 pm-7:20 pm

1 stop11h 20m

$488

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Sat 5/9

8:30 pm-12:55 pm

1 stop10h 25m

Kastrup Copenhagen

Thu 5/21

2:00 pm-7:20 pm

1 stop11h 20m

$488

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Mon 3/2

5:40 pm-5:35 pm

1 stop17h 55m

Kastrup Copenhagen

Wed 3/4

2:20 pm-8:15 pm

1 stop11h 55m

$503

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Mon 2/23

5:17 pm-12:25 pm

2 stops37h 08m

Kastrup Copenhagen

Thu 2/26

7:05 am-2:35 pm

1 stop13h 30m

$512

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Sat 4/4

8:20 pm-10:35 am

1 stop32h 15m

Billund

Sun 4/12

6:15 pm-4:50 pm

1 stop28h 35m

$517

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Thu 4/23

9:00 am-10:00 am

2 stops19h 00m

Billund

Sat 5/2

6:00 am-4:05 pm

1 stop16h 05m

$529

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Mon 3/16

12:14 pm-1:10 pm

2 stops19h 56m

Kastrup Copenhagen

Thu 3/19

9:55 am-5:05 pm

1 stop12h 10m

$536

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Thu 4/23

5:15 pm-10:00 am

1 stop10h 45m

Billund

Sat 5/2

6:00 am-4:05 pm

1 stop16h 05m

$540

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Wed 2/11

5:15 pm-10:00 am

1 stop10h 45m

Billund

Tue 2/17

10:15 am-3:50 pm

1 stop11h 35m

$540

Washington, D.C.Aalborg

IAD - AAL

IADAAL

Washington, D.C. Dulles Intl

Thu 3/5

12:24 pm-9:20 am

2 stops14h 56m

Aalborg

Tue 3/10

6:50 pm-6:15 pm

1 stop28h 25m

$541

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 42 results
1
2
3
...
5

Best time to book a flight from Dulles Intl to Denmark

Have a flexible travel schedule? Discover the best time to fly to Denmark from Dulles Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Denmark

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

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Denmark (average of $404). Flying from Washington, D.C. Dulles Intl Airport to Denmark in June is currently the most expensive (average of $602). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IAD to DK?

Find hourly flight availability from Dulles Intl to Denmark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 29, 2026.

When flying from Washington, D.C. Dulles Intl Airport to Denmark, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Reviews of airlines servicing Denmark

Get insights into the airlines that provide service to Denmark. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Denmark. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown KLM, United Airlines, and Scandinavian Airlines from Washington, D.C. Dulles Intl Airport to Denmark. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,443 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
United Airlines
7.4
Good
9,215 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Scandinavian Airlines
7.3
Good
1,674 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Icelandair
7.1
Good
606 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
Lufthansa
6.8
Okay
7,756 reviews
KLM
7.7
Good
1,443 reviews

Food

7.3

Overall

7.7

Entertainment

7.1

Comfort

7.6

Boarding

7.8

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Denmark. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Washington, D.C. Dulles Intl Airport to Denmark?

    A quick flight from Washington, D.C. Dulles Intl Airport to Denmark can take about 10h 25m. Icelandair provides one of the quickest options available for as low as $488. There are 4060 mi between Washington, D.C. Dulles Intl Airport and Denmark. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Denmark one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $158. Users have also found prices from $198 and $277 on Icelandair and Scandinavian Airlines, respectively.

  • What are the most popular routes from Washington, D.C. Dulles Intl Airport to Denmark?

    The most popular route from Washington, D.C. Dulles Intl Airport to Denmark is Washington, D.C. Dulles Intl - Kastrup Copenhagen. You may also consider Washington, D.C. Dulles Intl - Billund or Washington, D.C. Dulles Intl - Aarhus.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Denmark?

    Before booking your flight to Denmark from Washington, D.C. Dulles Intl Airport, check out the most reliable airlines to get you to your destination on time: Air France (88%), Scandinavian Airlines (88%), Delta( 88%).

  • What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Denmark?

    Looking for the cheapest flight from Washington, D.C. Dulles Intl Airport to Denmark? While on average our users pay $1,443, our data indicates the cheapest price to be $318. The most popular route (Washington, D.C. Dulles Intl - Kastrup Copenhagen), is priced around $371.

  • Can I find deals for flights from Dulles Intl to Denmark that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Denmark flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Denmark?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Denmark.

  • Can I find deals for business class flights from Dulles Intl to Denmark?

    Yes. Cheapflights offers flight deals from Dulles Intl to Denmark by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Denmark?

    Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Denmark (average of $404). Flying from Washington, D.C. Dulles Intl Airport to Denmark in June is currently the most expensive (average of $602). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dulles Intl to Denmark

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Heathrow flights
Dulles Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Dulles Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Dulles Intl to Dublin flights
Dulles Intl to Athens flights
Dulles Intl to Gatwick flights
Dulles Intl to Lisbon flights
Reagan-National to Heathrow flights
Dulles Intl to Amsterdam flights
Dulles Intl to Barcelona-El Prat flights
Dulles Intl to Stansted flights
Dulles Intl to London City flights
Reagan-National to Charles de Gaulle flights
Dulles Intl to Orly flights
Reagan-National to Gatwick flights
Baltimore to Charles de Gaulle flights
Baltimore to Gatwick flights
Dulles Intl to Istanbul flights
Dulles Intl to Frankfurt flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Reagan-National to Orly flights
Dulles Intl to Edinburgh flights
Reagan-National to Madrid flights
Dulles Intl to Bruxelles-National flights
Baltimore to Madrid flights
Baltimore to Lisbon flights
Reagan-National to Lisbon flights
Reagan-National to Istanbul flights
Baltimore to Athens flights
Dulles Intl to Keflavik Intl flights
Reagan-National to Athens flights
Baltimore to Istanbul flights
Baltimore to Dublin flights
Dulles Intl to Zurich flights
Reagan-National to Dublin flights
Dulles Intl to Luton flights
Dulles Intl to Munich flights
Dulles Intl to Copenhagen flights
Baltimore to Keflavik Intl flights
Baltimore to Barcelona-El Prat flights
Dulles Intl to Vicenza flights
Reagan-National to Barcelona-El Prat flights
Reagan-National to Amsterdam flights
Baltimore to Amsterdam flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Vienna flights
Reagan-National to Keflavik Intl flights

Top 10 airlines flying from Dulles Intl to Denmark

Discover the top 10 airlines that operate flights from Dulles Intl to Denmark. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$354Average$469FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$413Average$562FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$460Average$662FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$489Average$673FlexibilityNo cancel feeOn-time70%
SWISSCheapest$493Average$670FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$513Average$730FlexibilityNo cancel feeOn-time76%
KLMCheapest$525Average$792FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$535Average$714FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$571Average$721FlexibilityNo cancel feeOn-time77%
DeltaCheapest$701Average$972FlexibilityNo cancel feeOn-timeN/A

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.