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$230+ 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 1/12. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — CPH
Jan 13 — Jan 201
Tue 1/13
Tue 1/20
1 adult, Economy
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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 December 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 12/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/146:10 pmIAD - CPH
2 stops17h 25mLufthansa
Tue 12/1612:45 pmCPH - IAD
1 stop13h 30mLufthansa
Deal found 12/13$528
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/135:45 pmIAD - CPH
1 stop17h 45mUnited Airlines
Tue 12/166:00 amCPH - IAD
1 stop15h 35mUnited Airlines
Deal found 12/13$538
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:45 pmIAD - CPH
1 stop11h 40mUnited Airlines
Wed 1/146:50 amCPH - IAD
1 stop13h 45mUnited Airlines
Deal found 12/12$539
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:45 pmIAD - CPH
1 stop11h 40mUnited Airlines
Tue 1/139:50 amCPH - IAD
1 stop12h 50mUnited Airlines
Deal found 12/12$541
This FlightHub deal was found by Cheapflights users on 12/12. 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 12/125:15 pmIAD - CPH
1 stop14h 30mMultiple Airlines
Mon 1/122:55 pmCPH - IAD
1 stop30h 35mMultiple Airlines
Deal found 12/12$548
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:45 pmIAD - CPH
1 stop11h 40mUnited Airlines
Mon 1/1210:10 amCPH - IAD
2 stops31h 36mUnited Airlines
Deal found 12/12$549
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/125:45 pmIAD - CPH
1 stop11h 40mUnited Airlines
Fri 1/96:55 amCPH - IAD
2 stops30h 35mUnited Airlines
Deal found 12/12$550
This KAYAK deal was found by Cheapflights users on 12/14. 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.
Sun 12/1410:20 pmIAD - CPH
2 stops14h 45mSWISS
Tue 12/169:50 amCPH - IAD
1 stop12h 50mSWISS
Deal found 12/14$552
This Cheapflightsfares deal was found by Cheapflights users on 12/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/136:10 pmIAD - CPH
2 stops17h 25mLufthansa
Sun 1/111:10 pmCPH - IAD
2 stops30h 50mLufthansa
Deal found 12/12$560
This United Airlines deal was found by Cheapflights users on 12/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2910:15 pmIAD - BLL
2 stops33h 25mUnited Airlines
Wed 1/76:35 amBLL - IAD
2 stops37h 25mUnited Airlines
Deal found 12/13$712
This Cheapflightsfares deal was found by Cheapflights users on 12/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:15 pmIAD - BLL
1 stop14h 05mLufthansa
Wed 12/316:35 amBLL - IAD
1 stop14h 00mLufthansa
Deal found 12/12$942
This United Airlines deal was found by Cheapflights users on 12/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/255:15 pmIAD - BLL
1 stop14h 05mUnited Airlines
Wed 12/316:35 amBLL - IAD
1 stop14h 00mUnited Airlines
Deal found 12/12$1,005

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 December 14, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$446
(oojo)

One-way from

$230
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$556

Good round-trip deal

$524 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. 16% potential increase in price ($112 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 14, 2025.
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

Fri 1/30

7:40 pm-11:45 am

1 stop10h 05m

Kastrup Copenhagen

Tue 2/10

12:55 pm-6:30 pm

1 stop11h 35m

$447

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Thu 2/26

8:30 pm-6:45 pm

2 stops16h 15m

Billund

Tue 3/3

7:20 pm-5:15 pm

2 stops27h 55m

$476

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Tue 2/24

10:30 pm-5:35 pm

2 stops37h 05m

Kastrup Copenhagen

Fri 2/27

6:50 am-2:35 pm

1 stop13h 45m

$510

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Wed 2/25

8:30 pm-10:35 am

1 stop32h 05m

Billund

Sun 3/1

3:25 pm-5:15 pm

1 stop31h 50m

$516

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Sun 4/26

8:20 pm-10:10 am

Nonstop7h 50m

Kastrup Copenhagen

Wed 5/13

2:15 pm-4:50 pm

Nonstop8h 35m

$521

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Wed 4/29

12:30 pm-1:20 pm

2 stops18h 50m

Kastrup Copenhagen

Fri 5/8

6:00 am-3:35 pm

1 stop15h 35m

$533

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Mon 3/30

5:20 pm-7:55 pm

2 stops20h 35m

Kastrup Copenhagen

Tue 4/7

9:25 am-3:35 pm

1 stop12h 10m

$534

Washington, D.C.Billund

IAD - BLL

IADBLL

Washington, D.C. Dulles Intl

Mon 1/26

5:15 pm-1:20 pm

1 stop14h 05m

Billund

Mon 2/2

6:45 am-3:50 pm

1 stop15h 05m

$536

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Sat 4/25

5:17 pm-10:50 am

1 stop11h 33m

Kastrup Copenhagen

Tue 4/28

12:45 pm-8:29 pm

1 stop13h 44m

$537

Washington, D.C.Copenhagen

IAD - CPH

IADCPH

Washington, D.C. Dulles Intl

Thu 4/30

9:00 am-10:50 am

1 stop19h 50m

Kastrup Copenhagen

Wed 5/13

2:40 pm-7:55 pm

1 stop11h 15m

$537

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 26 results
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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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Denmark (average of $390). Flying from Washington, D.C. Dulles Intl Airport to Denmark in June is currently the most expensive (average of $601). 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 December 14, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 25% on flights from Washington, D.C. Dulles Intl Airport to Denmark by exploring options for tickets in the evening.

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 December 14, 2025.
Read reviews from past customers who have flown KLM, Scandinavian Airlines, and United 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
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
KLM
7.7
Good
1,430 reviews
KLM
7.7
Good
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Scandinavian Airlines
7.4
Good
1,606 reviews
KLM
7.7
Good
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
United Airlines
7.4
Good
9,092 reviews
KLM
7.7
Good
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Icelandair
7.0
Good
590 reviews
KLM
7.7
Good
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle
Lufthansa
6.8
Okay
7,628 reviews
KLM
7.7
Good
1,430 reviews

Food

7.2

Overall

7.7

Entertainment

7.1

Crew

8.4

Boarding

7.8

Comfort

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Dec 2025

YYC - AMS

Not literally sitting in the very last row in the middle

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 05m. Icelandair provides one of the quickest options available for as low as $447. 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 $185 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 - Aalborg.

  • 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: Scandinavian Airlines (99%), Air France (98%), Delta( 98%).

  • 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 $1,359, our data indicates the cheapest price to be $361. The most popular route (Washington, D.C. Dulles Intl - Kastrup Copenhagen), is priced around $361.

  • 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, February is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Denmark (average of $390). Flying from Washington, D.C. Dulles Intl Airport to Denmark in June is currently the most expensive (average of $601). 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

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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 Istanbul flights
Dulles Intl to Lisbon flights
Dulles Intl to Madrid flights
Reagan-National to Heathrow flights
Dulles Intl to Gatwick flights
Dulles Intl to London City flights
Dulles Intl to Dublin flights
Dulles Intl to Amsterdam flights
Dulles Intl to Athens flights
Baltimore to Gatwick flights
Dulles Intl to Barcelona-El Prat flights
Reagan-National to Gatwick flights
Dulles Intl to Stansted flights
Dulles Intl to Orly flights
Dulles Intl to Frankfurt flights
Baltimore to Charles de Gaulle flights
Reagan-National to Charles de Gaulle flights
Reagan-National to Leonardo da Vinci/Fiumicino flights
Reagan-National to Istanbul flights
Baltimore to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Zurich flights
Reagan-National to Orly flights
Reagan-National to Madrid flights
Reagan-National to Lisbon flights
Dulles Intl to Keflavik Intl flights
Baltimore to Madrid flights
Baltimore to Lisbon flights
Dulles Intl to Luton flights
Dulles Intl to Bruxelles-National flights
Baltimore to Istanbul flights
Dulles Intl to Edinburgh flights
Dulles Intl to Sabiha Gokcen flights
Dulles Intl to Vienna flights
Reagan-National to Dublin flights
Baltimore to Keflavik Intl flights
Dulles Intl to Malpensa flights
Dulles Intl to Munich flights
Baltimore to Dublin flights
Baltimore to Athens flights
Baltimore to Barcelona-El Prat flights
Reagan-National to Barcelona-El Prat flights
Baltimore to Luton flights
Dulles Intl to Geneva flights
Reagan-National to Keflavik Intl flights
Baltimore to Amsterdam flights
Reagan-National to Athens 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 December 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$285Average$440FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$354Average$433FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$412Average$562FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$460Average$658FlexibilityNo cancel feeOn-time77%
SWISSCheapest$493Average$670FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$512Average$703FlexibilityNo cancel feeOn-time70%
KLMCheapest$527Average$816FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$536Average$749FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$569Average$730FlexibilityNo cancel feeOn-time76%
DeltaCheapest$640Average$1,031FlexibilityNo cancel feeOn-timeN/A

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