HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Denmark

$350+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Nov 22 — Nov 291
Sat 11/22
Sat 11/29
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 October 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$420
(Gotogate)

One-way from

$350
(SmartFares)

Popular in

June

Cheapest in

February

Average price

$603

Good round-trip deal

$533 or less

Good one-way deal

$402 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 ($76 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 23, 2025.

This FlightHub deal was found by Cheapflights users on 10/23. 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.
Wed 11/262:35 pmSEA - CPH
1 stop12h 55mIcelandair
Wed 4/152:00 pmCPH - SEA
1 stop12h 50mIcelandair
Deal found 10/23$424
This oojo deal was found by Cheapflights users on 10/21. 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 12/42:35 pmSEA - CPH
1 stop21h 00mIcelandair
Thu 12/1112:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 10/21$436
This oojo deal was found by Cheapflights users on 10/21. 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.
Fri 12/52:35 pmSEA - CPH
1 stop12h 55mIcelandair
Fri 12/1212:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 10/21$450
This Trip.com deal was found by Cheapflights users on 10/22. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/32:35 pmSEA - CPH
1 stop29h 40mIcelandair
Tue 11/1112:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 10/22$473
This FlightHub deal was found by Cheapflights users on 10/21. 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 11/22:35 pmSEA - CPH
1 stop21h 00mIcelandair
Thu 11/612:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 10/21$477
This Flightnetwork deal was found by Cheapflights users on 10/22. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:35 pmSEA - CPH
1 stop12h 10mIcelandair
Thu 11/201:25 pmCPH - SEA
1 stop12h 35mIcelandair
Deal found 10/22$494
This FlightHub deal was found by Cheapflights users on 10/23. 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.
Thu 12/252:35 pmSEA - CPH
1 stop21h 00mIcelandair
Sun 1/1112:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 10/23$497
This FlightHub deal was found by Cheapflights users on 10/22. 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.
Thu 11/137:10 amSEA - CPH
1 stop19h 50mScandinavian Airlines
Fri 11/212:20 pmCPH - SEA
1 stop18h 36mScandinavian Airlines
Deal found 10/22$507
This Kiwi.com deal was found by Cheapflights users on 10/21. 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.
Fri 12/510:05 amSEA - CPH
2 stops16h 55mLufthansa
Fri 12/126:50 amCPH - SEA
1 stop14h 20mLufthansa
Deal found 10/21$512
This Kiwi.com deal was found by Cheapflights users on 10/22. 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 11/293:40 pmSEA - CPH
2 stops35h 05mLufthansa
Sun 12/148:55 amCPH - SEA
1 stop13h 25mLufthansa
Deal found 10/22$514
This FlightHub deal was found by Cheapflights users on 10/22. 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.
Sat 11/152:35 pmSEA - CPH
1 stop12h 55mIcelandair
Sat 11/221:25 pmCPH - SEA
1 stop12h 35mIcelandair
Deal found 10/22$527
This Scandinavian Airlines deal was found by Cheapflights users on 10/21. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/32:05 pmSEA - AAR
2 stops34h 10mScandinavian Airlines
Sun 12/76:40 pmAAR - SEA
2 stops37h 14mScandinavian Airlines
Deal found 10/21$552

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 October 23, 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

Wed 11/26

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Wed 4/15

7:20 am-8:45 pm

1 stop22h 25m

$447

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Mon 3/30

3:45 pm-12:55 pm

1 stop12h 10m

Kastrup Copenhagen

Fri 4/10

2:00 pm-6:00 pm

1 stop13h 00m

$475

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Sat 4/4

3:45 pm-9:45 pm

1 stop21h 00m

Kastrup Copenhagen

Sat 4/18

5:15 pm-6:00 pm

1 stop33h 45m

$476

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 11/11

1:40 pm-2:40 pm

1 stop16h 00m

Kastrup Copenhagen

Sun 11/16

7:25 pm-11:45 am

1 stop25h 20m

$538

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 1/14

8:40 am-5:35 pm

3 stops23h 55m

Kastrup Copenhagen

Wed 1/21

10:05 am-9:12 pm

2 stops20h 07m

$551

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Wed 12/3

12:45 pm-9:15 am

2 stops35h 30m

Aarhus

Sun 12/7

6:40 pm-10:54 pm

2 stops37h 14m

$552

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 12/3

1:05 pm-7:05 pm

2 stops21h 00m

Kastrup Copenhagen

Sat 12/13

2:55 pm-11:15 pm

2 stops41h 20m

$559

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Sun 12/7

7:05 am-7:10 am

1 stop15h 05m

Kastrup Copenhagen

Sun 12/14

2:20 pm-10:56 pm

1 stop17h 36m

$560

PortlandBillund

PDX - BLL

PDXBLL

Portland

Fri 11/28

6:00 am-11:20 am

2 stops20h 20m

Billund

Thu 12/4

2:30 pm-11:25 am

1 stop29h 55m

$577

PortlandBillund

PDX - BLL

PDXBLL

Portland

Fri 11/28

1:25 pm-1:45 pm

1 stop15h 20m

Billund

Thu 12/4

2:30 pm-11:25 am

1 stop29h 55m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Showing 1-10 of 52 results
1
2
3
...
6

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, November is the cheapest month in which you can book a flight from State of Washington to Denmark (average of $317). Flying from State of Washington to Denmark in June is currently the most expensive (average of $545). 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 October 23, 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, United Airlines, and Scandinavian Airlines 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 23h 20m. 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.

  • 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, November is the cheapest month in which you can book a flight from State of Washington to Denmark (average of $317). Flying from State of Washington to Denmark in June is currently the most expensive (average of $545). 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
Newark to Orly flights
John F Kennedy Intl to Leonardo da Vinci/Fiumicino flights
LaGuardia to Heathrow flights
John F Kennedy Intl to London City flights
Boston to Heathrow flights
Newark to Leonardo da Vinci/Fiumicino flights
John F Kennedy Intl to Gatwick flights
John F Kennedy Intl to Orly flights
Newark to Gatwick flights
John F Kennedy Intl to Istanbul flights
Los Angeles to Heathrow flights
Dulles Intl to Heathrow flights
John F Kennedy Intl to Madrid flights
Miami to Madrid flights
LaGuardia to Charles de Gaulle flights
Newark to Madrid flights
John F Kennedy Intl to Lisbon flights
O'Hare Intl to Heathrow flights
John F Kennedy Intl to Stansted flights
John F Kennedy Intl to Luton flights
John F Kennedy Intl to Malpensa flights
Newark to London City flights
Los Angeles to Charles de Gaulle flights
LaGuardia to Gatwick flights
Newark to Lisbon flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Newark to Malpensa flights
Boston to Charles de Gaulle flights
John F Kennedy Intl to Dublin flights
Dulles Intl to Charles de Gaulle flights
Newark to Barcelona-El Prat flights
John F Kennedy Intl to Barcelona-El Prat flights
Newark to Frankfurt flights
Baltimore to Heathrow flights
Newark to Dublin flights
Newark to Luton flights
O'Hare Intl to Charles de Gaulle flights
Newark to Stansted flights
Dulles Intl to Madrid flights
Seattle to Heathrow flights
San Francisco to Charles de Gaulle flights
John F Kennedy Intl to Amsterdam flights
LaGuardia to Leonardo da Vinci/Fiumicino flights
Boston to Dublin flights
John F Kennedy Intl to Beauvais-Tille 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 October 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$418Average$648FlexibilityNo cancel feeOn-time77%
DeltaCheapest$421Average$803FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$423Average$585FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$601FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$496Average$714FlexibilityNo cancel feeOn-time77%
FinnairCheapest$504Average$715FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$528Average$713FlexibilityNo 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.