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Denmark

$206+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Feb 18 — Feb 251
Wed 2/18
Wed 2/25
1 adult, Economy
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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 January 19, 2026.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$371
(Ticket)

One-way from

$206
(oojo)

Popular in

December

Cheapest in

October

Average price

$535

Good round-trip deal

$542 or less

Good one-way deal

$506 or less
Provider with most accurate pricing for Seattle/Tacoma Intl-Kastrup Copenhagen flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kastrup Copenhagen flights.
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From Washington to Denmark
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One-way flight from Washington to Denmark
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Washington to Denmark.
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Price to beat on a one-way flight from Washington to Denmark.
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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 January 19, 2026.

This Ticket deal was found by Cheapflights users on 1/18. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/82:35 pm
SEA
-
CPH
1 stop20h 15m
Icelandair
Tue 2/248:50 pm
CPH
-
SEA
1 stop29h 10m
Icelandair
Deal found 1/18$371
This oojo deal was found by Cheapflights users on 1/17. 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 4/237:00 pm
SEA
-
CPH
1 stop11h 55m
Icelandair
Tue 4/282:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 1/17$421
This oojo deal was found by Cheapflights users on 1/18. 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 4/133:30 pm
PDX
-
CPH
1 stop21h 15m
Icelandair
Mon 4/272:00 pm
CPH
-
PDX
1 stop13h 00m
Icelandair
Deal found 1/18$421
This oojo deal was found by Cheapflights users on 1/17. 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 2/172:35 pm
SEA
-
CPH
1 stop20h 45m
Icelandair
Tue 2/248:50 pm
CPH
-
SEA
1 stop29h 10m
Icelandair
Deal found 1/17$422
This oojo deal was found by Cheapflights users on 1/18. 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 4/63:30 pm
PDX
-
CPH
1 stop21h 15m
Icelandair
Mon 4/272:00 pm
CPH
-
PDX
1 stop13h 00m
Icelandair
Deal found 1/18$422
This FlightHub deal was found by Cheapflights users on 1/19. 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 4/143:30 pm
PDX
-
CPH
1 stop12h 25m
Icelandair
Mon 4/272:00 pm
CPH
-
PDX
1 stop13h 00m
Icelandair
Deal found 1/19$425
This FlightHub deal was found by Cheapflights users on 1/19. 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 4/143:30 pm
PDX
-
CPH
1 stop12h 25m
Icelandair
Tue 4/284:55 pm
CPH
-
PDX
1 stop34h 05m
Icelandair
Deal found 1/19$426
This oojo deal was found by Cheapflights users on 1/17. 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 4/283:40 pm
SEA
-
CPH
1 stop12h 15m
Icelandair
Sat 5/94:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 1/17$428
This FlightHub deal was found by Cheapflights users on 1/17. 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.
Mon 4/273:40 pm
SEA
-
CPH
1 stop12h 15m
Icelandair
Tue 5/54:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 1/17$433
This oojo deal was found by Cheapflights users on 1/18. 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 5/17:00 pm
SEA
-
CPH
1 stop11h 55m
Icelandair
Wed 5/62:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 1/18$436
This oojo deal was found by Cheapflights users on 1/19. 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 3/233:35 pm
SEA
-
CPH
1 stop12h 10m
Icelandair
Tue 3/314:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 1/19$444
This oojo deal was found by Cheapflights users on 1/18. 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.
Wed 2/252:35 pm
SEA
-
CPH
1 stop20h 15m
Icelandair
Mon 3/238:50 pm
CPH
-
SEA
1 stop29h 10m
Icelandair
Deal found 1/18$445

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 January 19, 2026.
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 2/9

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Fri 2/13

12:55 pm-5:00 pm

1 stop13h 05m

$471

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 4/6

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Tue 4/14

12:45 pm-4:37 pm

2 stops36h 52m

$477

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Mon 3/30

3:30 pm-10:50 am

2 stops34h 20m

Kastrup Copenhagen

Fri 4/10

12:45 pm-10:29 pm

2 stops42h 44m

$487

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 5/2

2:23 pm-10:50 am

2 stops59h 27m

Kastrup Copenhagen

Tue 5/19

12:45 pm-1:12 am

2 stops45h 27m

$496

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/23

7:50 pm-2:20 pm

1 stop34h 30m

Kastrup Copenhagen

Thu 4/2

7:05 am-12:24 am

2 stops26h 19m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/23

7:50 pm-9:45 pm

1 stop17h 55m

Kastrup Copenhagen

Mon 3/30

9:45 pm-11:04 pm

2 stops34h 19m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 4/17

6:50 pm-11:30 pm

1 stop19h 40m

Kastrup Copenhagen

Wed 4/22

12:45 pm-4:37 pm

2 stops36h 52m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/23

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Tue 4/28

12:45 pm-4:37 pm

2 stops36h 52m

$502

SpokaneCopenhagen

GEG - CPH

GEGCPH

Spokane

Sun 4/5

11:59 pm-4:15 pm

2 stops31h 16m

Kastrup Copenhagen

Wed 4/15

6:45 am-8:28 pm

2 stops22h 43m

$505

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/23

7:21 am-4:10 pm

2 stops24h 49m

Kastrup Copenhagen

Wed 4/1

7:20 am-9:57 pm

2 stops23h 37m

$506

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 48 results
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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 $230). Flying from State of Washington to Denmark in June is currently the most expensive (average of $542). 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.

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 British Airways 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 6h 55m. 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 Icelandair, which is currently one of the cheapest options available, starting at $194. Lufthansa flights start at $335 while deals on Delta start at $350 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, November is the cheapest month in which you can book a flight from State of Washington to Denmark (average of $230). Flying from State of Washington to Denmark in June is currently the most expensive (average of $542). 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 Washington to Denmark

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$418Average$618FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$422Average$578FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$497Average$694FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$506Average$676FlexibilityNo cancel feeOn-time70%
KLMCheapest$524Average$683FlexibilityNo cancel feeOn-time75%
DeltaCheapest$531Average$750FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$535Average$713FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$574Average$726FlexibilityNo cancel feeOn-time76%
FinnairCheapest$580Average$744FlexibilityNo cancel feeOn-time76%

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