HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denmark

$286+ Cheap flights from Washington 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Dec 6 — Dec 131
Sat 12/6
Sat 12/13
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Washington 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 Washington to Denmark

Keep the following information in mind while searching for Washington to Denmark flight deals. Data was last updated November 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$443
(oojo)

One-way from

$286
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$584

Good round-trip deal

$568 or less

Good one-way deal

$456 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Kastrup Copenhagen flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kastrup Copenhagen flights.
Search Deals
From Washington to Denmark
Search Deals
One-way flight from Washington to Denmark
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($72 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 November 2025
Search Deals
Price to beat on a round-trip flight from Washington to Denmark.
Search Deals
Price to beat on a one-way flight from Washington to Denmark.
Search Deals

Find flight deals from Washington to Denmark

Cheapest flights from Washington to Denmark
Explore the most affordable flight options available from Washington to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

This oojo deal was found by Cheapflights users on 11/4. 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 11/272:45 pmPDX - CPH
1 stop12h 00mIcelandair
Fri 12/512:55 pmCPH - PDX
1 stop13h 05mIcelandair
Deal found 11/4$443
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Tue 12/92:05 pmSEA - CPH
1 stop16h 20mScandinavian Airlines
Sat 12/1312:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/6$465
This Icelandair deal was found by Cheapflights users on 11/4. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/102:35 pmSEA - CPH
1 stop12h 10mIcelandair
Fri 11/1412:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/4$467
This oojo deal was found by Cheapflights users on 11/5. 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.
Tue 11/182:35 pmSEA - CPH
1 stop21h 00mIcelandair
Tue 11/2512:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/5$472
This oojo deal was found by Cheapflights users on 11/6. 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.
Mon 11/102:35 pmSEA - CPH
1 stop29h 40mIcelandair
Tue 11/2512:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/6$473
This FlightHub deal was found by Cheapflights users on 11/4. 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 12/77:20 amSEA - CPH
1 stop18h 05mScandinavian Airlines
Mon 12/1512:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/4$475
This CrystalTravel deal was found by Cheapflights users on 11/6. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:40 amSEA - CPH
1 stop16h 20mScandinavian Airlines
Sun 12/1412:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/6$484
This oojo deal was found by Cheapflights users on 11/4. 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 11/272:35 pmSEA - CPH
1 stop21h 00mIcelandair
Wed 12/36:15 amCPH - SEA
1 stop19h 45mIcelandair
Deal found 11/4$490
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Sun 11/303:10 pmSEA - CPH
1 stop22h 55mLufthansa
Wed 12/38:55 amCPH - SEA
1 stop13h 25mLufthansa
Deal found 11/6$492
This Gurufare deal was found by Cheapflights users on 11/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/510:40 amSEA - CPH
1 stop16h 20mScandinavian Airlines
Sat 12/1312:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/6$493
This KAYAK deal was found by Cheapflights users on 11/4. 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 12/77:20 amSEA - CPH
1 stop18h 05mScandinavian Airlines
Sun 12/1412:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/4$498
This FlightHub deal was found by Cheapflights users on 11/4. 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 12/512:45 pmSEA - CPH
1 stop17h 40mScandinavian Airlines
Mon 12/1512:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/4$505

Cheapflights Fare Finder

 
Customize your flight search to find flights from Washington 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 November 6, 2025.
Use the filters below to find and compare flights from Washington to Denmark that are best for you.

Fly from

Washington

Fly to

Denmark

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Sun 3/29

7:20 am-8:45 pm

1 stop22h 25m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/15

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

Sun 3/29

5:15 pm-8:45 pm

1 stop12h 30m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/16

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Wed 3/25

6:15 am-6:00 pm

1 stop19h 45m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/15

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

Wed 3/25

12:55 pm-6:00 pm

1 stop13h 05m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 3/17

3:35 pm-8:20 pm

1 stop20h 45m

Kastrup Copenhagen

Sun 3/29

5:15 pm-8:45 pm

1 stop12h 30m

$453

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Mon 3/30

3:45 pm-9:45 pm

1 stop21h 00m

Kastrup Copenhagen

Fri 4/10

2:00 pm-6:00 pm

1 stop13h 00m

$464

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/18

7:50 pm-7:00 pm

1 stop15h 10m

Kastrup Copenhagen

Wed 3/25

12:15 pm-12:49 am

2 stops20h 34m

$517

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/18

10:01 am-12:15 pm

2 stops18h 14m

Kastrup Copenhagen

Wed 3/25

8:40 am-9:10 pm

2 stops20h 30m

$521

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/12

6:50 pm-6:40 pm

1 stop14h 50m

Kastrup Copenhagen

Sun 4/19

12:25 pm-9:12 pm

2 stops41h 47m

$522

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Mon 2/2

9:50 am-12:00 pm

2 stops17h 10m

Kastrup Copenhagen

Thu 2/12

7:05 am-6:30 pm

2 stops20h 25m

$524

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 45 results
1
2
3
...
5

Best time to book a flight from Washington to Denmark

Have a flexible travel schedule? Discover the best time to fly to Denmark from Washington 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 to Denmark

What is the cheapest month to book a flight from State of Washington to Denmark?

Currently, December is the cheapest month in which you can book a flight from State of Washington to Denmark (average of $332). Flying from State of Washington to Denmark in June is currently the most expensive (average of $553). 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 WA to DK?

Find hourly flight availability from Washington 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 November 6, 2025.

One of the essential ways to save on airfare from State of Washington to Denmark is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 23% on airfare.

What is the cheapest day to fly from State of Washington to Denmark?

Use this chart to determine the cheapest time to fly round-trip from Washington to Denmark. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their State of Washington to Denmark flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Related info for your journey

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

  • How popular is this State of Washington to Denmark flight route?

    The Washington to Denmark flight path was viewed by 8 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from State of Washington to Denmark?

    Airlines like Icelandair, Air France, and Delta fly from State of Washington to Denmark in about 12h 10m. The time it takes to get you to your destination can typically vary by up to 5h 35m. The distance between State of Washington and Denmark is about 4850 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from State of Washington to Denmark one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $401. Lufthansa flights start at $405 while deals on United Airlines start at $427 one-way.

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

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

  • How can I find direct flights from Washington to Denmark?

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Denmark?

    Currently, December is the cheapest month in which you can book a flight from State of Washington to Denmark (average of $332). Flying from State of Washington to Denmark in June is currently the most expensive (average of $553). 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 Washington to Denmark

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Charles de Gaulle flights
Newark to Charles de Gaulle flights
John F Kennedy Intl to Istanbul flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
Newark to Orly flights
Boston to Heathrow flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Newark to Leonardo da Vinci/Fiumicino flights
Miami to Madrid flights
Newark to Gatwick flights
John F Kennedy Intl to Orly flights
Dulles Intl to Heathrow flights
Los Angeles to Heathrow flights
LaGuardia to Gatwick flights
Los Angeles to Charles de Gaulle flights
LaGuardia to Charles de Gaulle flights
John F Kennedy Intl to Stansted flights
Newark to Madrid flights
John F Kennedy Intl to Madrid flights
John F Kennedy Intl to Malpensa flights
San Francisco to Heathrow flights
John F Kennedy Intl to Barcelona-El Prat flights
O'Hare Intl to Heathrow flights
Boston to Charles de Gaulle flights
Dallas/Fort Worth to Heathrow flights
Newark to Malpensa flights
John F Kennedy Intl to Luton flights
Newark to London City flights
John F Kennedy Intl to Lisbon flights
Newark to Barcelona-El Prat flights
O'Hare Intl to Charles de Gaulle flights
Baltimore to Heathrow flights
Newark to Dublin flights
Dulles Intl to Charles de Gaulle flights
Newark to Frankfurt flights
John F Kennedy Intl to Dublin flights
San Francisco to Charles de Gaulle flights
O'Hare Intl to Leonardo da Vinci/Fiumicino flights
Dulles Intl to Madrid flights
Seattle to Heathrow flights
John F Kennedy Intl to Amsterdam flights
Newark to Lisbon flights
Dallas/Fort Worth to Leonardo da Vinci/Fiumicino flights
Newark to Amsterdam flights
John F Kennedy Intl to Frankfurt flights
Newark to Stansted flights

Top 10 airlines flying from Washington to Denmark

Discover the top 10 airlines that operate flights from Washington 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 November 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$418Average$623FlexibilityNo cancel feeOn-time77%
DeltaCheapest$421Average$805FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$424Average$580FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$601FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$495Average$715FlexibilityNo cancel feeOn-time77%
FinnairCheapest$504Average$715FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$528Average$728FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$560Average$804FlexibilityNo cancel feeOn-time69%
KLMCheapest$582Average$696FlexibilityNo cancel feeOn-time75%

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.