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$344+ Cheap flights from Copenhagen (CPH) to Seattle (SEA)

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Find cheap flights from Copenhagen to Seattle 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”

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Cheapflights Tip: The best prices from Kastrup Copenhagen to Seattle/Tacoma Intl are usually found in February or November, booked 63 days in advance, depart on a Thursday or Monday and return on a Monday

Cheap flight deals from Copenhagen to Seattle

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

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.
Wed 2/412:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Sun 2/82:35 pm
SEA
-
CPH
1 stop12h 10m
Icelandair
Deal found 1/27$516
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.
Thu 2/58:50 pm
CPH
-
SEA
1 stop29h 10m
Icelandair
Mon 2/92:35 pm
SEA
-
CPH
1 stop12h 10m
Icelandair
Deal found 1/27$517
This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/16:55 am
CPH
-
SEA
2 stops24h 02m
British Airways
Tue 3/177:21 am
SEA
-
CPH
2 stops21h 54m
British Airways
Deal found 1/28$524
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Mon 2/162:35 pm
SEA
-
CPH
1 stop29h 45m
Icelandair
Deal found 1/27$526
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:40 am
CPH
-
SEA
1 stop33h 55m
American Airlines
Tue 11/38:21 am
SEA
-
CPH
2 stops23h 34m
American Airlines
Deal found 1/28$527
This American Airlines 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:50 am
CPH
-
SEA
2 stops23h 36m
American Airlines
Tue 5/128:31 am
SEA
-
CPH
2 stops29h 39m
American Airlines
Deal found 1/27$533
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Tue 5/127:00 pm
SEA
-
CPH
1 stop11h 55m
Icelandair
Deal found 1/26$540
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Wed 2/112:35 pm
SEA
-
CPH
1 stop12h 10m
Icelandair
Deal found 1/27$547
This Finnair 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:25 pm
CPH
-
SEA
2 stops19h 30m
Finnair
Mon 6/158:20 pm
SEA
-
CPH
2 stops17h 50m
Finnair
Deal found 1/27$548

Find flight deals from Copenhagen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Copenhagen (CPH) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$524
(Travelis)

One-way from

$344
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$557
Provider with most accurate pricing for Kastrup Copenhagen-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Kastrup Copenhagen-Seattle/Tacoma Intl flights.
Search Deals
From Kastrup Copenhagen to Seattle/Tacoma Intl
Search Deals
One-way flight from Kastrup Copenhagen to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($133 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Copenhagen to Seattle 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 Copenhagen to Seattle that are best for you.

Fly from

Copenhagen

Fly to

Seattle

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 3/1

6:55 am-9:57 pm

2 stops24h 02m

Seattle/Tacoma Intl

Tue 3/17

2:25 pm-11:30 am

1 stop13h 05m

$524

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 5/9

7:50 am-10:26 pm

2 stops23h 36m

Seattle/Tacoma Intl

Tue 5/12

8:31 am-11:10 pm

2 stops29h 39m

$533

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 5/9

4:55 pm-8:40 pm

1 stop12h 45m

Seattle/Tacoma Intl

Tue 5/12

7:00 pm-3:55 pm

1 stop11h 55m

$540

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 6/1

12:25 pm-10:55 pm

2 stops19h 30m

Seattle/Tacoma Intl

Mon 6/15

8:20 pm-11:10 pm

2 stops17h 50m

$548

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 3/23

6:00 am-8:59 pm

2 stops22h 59m

Seattle/Tacoma Intl

Mon 3/30

6:40 pm-6:45 pm

1 stop15h 05m

$552

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 2/9

2:15 pm-11:40 am

1 stop30h 25m

Seattle/Tacoma Intl

Mon 2/23

9:45 am-1:40 pm

2 stops18h 55m

$557

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 2/14

6:15 am-11:07 pm

2 stops25h 52m

Seattle/Tacoma Intl

Wed 2/18

7:15 am-5:20 pm

2 stops25h 05m

$595

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 3/14

6:00 am-9:46 pm

2 stops23h 46m

Seattle/Tacoma Intl

Sun 6/7

1:30 pm-11:25 am

1 stop12h 55m

$597

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 6/3

12:25 pm-10:55 pm

2 stops19h 30m

$346

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 5/3

12:25 pm-10:26 pm

2 stops19h 01m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/27

Showing 1-10 of 19 results
1
2

Compare providers for flights from Copenhagen to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Copenhagen to Seattle in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
Kiwi.comPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Copenhagen-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Copenhagen-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Copenhagen-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Copenhagen-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Copenhagen-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Copenhagen to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Copenhagen 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 Copenhagen to Seattle

How far ahead should I book a flight from Copenhagen to Seattle?

Use this chart to determine the optimal time to book a round-trip flight from Copenhagen to Seattle. Price data was last updated on January 23, 2026.

Booking 63 days in advance of your planned departure date is, on average, the best time to get cheap flights from Copenhagen to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Copenhagen to Seattle?

Currently, February is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of $436). Flying from Copenhagen to Seattle in July is currently the most expensive (average of $605). 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.

The best insider tips for Copenhagen to Seattle flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Copenhagen to Seattle trip
Our travel experts
John Walton

John Walton

Expert on CPH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. 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 Seattle. Reviews last updated January 29, 2026.
Read reviews from past customers who have flown United Airlines, Scandinavian Airlines, and American Airlines from Copenhagen to Seattle. 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.
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Scandinavian Airlines
7.3
Good
1,674 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
American Airlines
7.2
Good
11,206 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Icelandair
7.1
Good
606 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats
Lufthansa
6.8
Okay
7,756 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Overall

7.4

Entertainment

7.1

Reviews

1 / 20
6.0
Good

Gerry,Jan 2026

YVR - DEN

Seats were uncomfortable. Second leg of my flight on United had much more comfortable seats

Related info for your journey

Find useful and relevant information for your journey from Copenhagen to Seattle. 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 Copenhagen to Seattle?

    There are many flights that can get you from Copenhagen to Seattle in 12h 45m. Fly via British Airways, American Airlines, or Icelandair to get the fastest option. Copenhagen and Seattle are separated by a distance of 4850 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Copenhagen to Seattle round-trip?

    According to our current data, Lufthansa ($317), Icelandair ($430), and American Airlines ($462) offers the cheapest pricing from Copenhagen to Seattle. You may be able to fly from Copenhagen to Seattle for 50% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Copenhagen to Seattle one-way?

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $349. Users have also found prices from $358 and $381 on Finnair and British Airways, respectively.

  • Can I find deals for flights from Copenhagen to Seattle that include hotel bookings?

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

  • How can I find direct flights from Copenhagen to Seattle?

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

  • Can I find deals for business class flights from Copenhagen to Seattle?

    Yes. Cheapflights offers flight deals from Copenhagen to Seattle 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 Copenhagen to Seattle?

    Currently, February is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of $436). Flying from Copenhagen to Seattle in July is currently the most expensive (average of $605). 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

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

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 Copenhagen to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Copenhagen to Portland flights
Billund to Seattle flights

Top 6 airlines flying from Copenhagen to Seattle

Discover the top 6 airlines that operate flights from Copenhagen to Seattle. 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
LufthansaCheapest$317Average$717FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$430Average$569FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$462Average$556FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$463Average$652FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$567Average$706FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$600Average$796FlexibilityNo cancel feeOn-time77%

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