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$324+ Cheap flights from Denmark 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
Mar 13 — Mar 201
Fri 3/13
Fri 3/20
1 adult, Economy
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Cheap flight deals from Denmark to Seattle

Cheapest flights from Denmark to Seattle
Explore the most affordable flight options available from Denmark to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 11, 2026.

This Sembo deal was found by Cheapflights users on 2/9. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/138:50 pm
CPH
-
SEA
1 stop29h 35m
Icelandair
Sat 3/287:00 pm
SEA
-
CPH
1 stop17h 45m
Icelandair
Deal found 2/9$514
This Flysmarter deal was found by Cheapflights users on 2/9. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:50 am
CPH
-
SEA
2 stops18h 59m
British Airways
Tue 11/31:25 pm
SEA
-
CPH
1 stop14h 50m
British Airways
Deal found 2/9$527
This Finnair deal was found by Cheapflights users on 2/10. 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.
Fri 5/2912:25 pm
CPH
-
SEA
2 stops20h 14m
Multiple Airlines
Sun 6/78:20 pm
SEA
-
CPH
1 stop15h 30m
Multiple Airlines
Deal found 2/10$537
This Icelandair deal was found by Cheapflights users on 2/8. 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 5/22:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Tue 5/57:00 pm
SEA
-
CPH
1 stop11h 55m
Icelandair
Deal found 2/8$538
This Icelandair deal was found by Cheapflights users on 2/9. 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 5/92:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Tue 5/127:00 pm
SEA
-
CPH
1 stop17h 45m
Icelandair
Deal found 2/9$542
This American Airlines deal was found by Cheapflights users on 2/8. 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.
Mon 6/13:20 pm
CPH
-
SEA
1 stop16h 38m
American Airlines
Mon 6/810:27 am
SEA
-
CPH
2 stops21h 23m
American Airlines
Deal found 2/8$547
This American Airlines deal was found by Cheapflights users on 2/9. 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.
Thu 4/212:25 pm
CPH
-
SEA
2 stops19h 48m
American Airlines
Sat 4/181:35 pm
SEA
-
CPH
1 stop12h 30m
American Airlines
Deal found 2/9$548
This Ticket deal was found by Cheapflights users on 2/8. 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.
Thu 2/266:00 am
BLL
-
SEA
1 stop14h 40m
Air France
Mon 3/22:10 pm
SEA
-
BLL
1 stop23h 50m
Air France
Deal found 2/8$552
This American Airlines deal was found by Cheapflights users on 2/8. 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 10/310:55 am
CPH
-
SEA
1 stop33h 40m
American Airlines
Tue 11/311:42 am
SEA
-
CPH
2 stops16h 33m
American Airlines
Deal found 2/8$553
This Ticket deal was found by Cheapflights users on 2/10. 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.
Thu 2/266:00 am
BLL
-
SEA
1 stop14h 40m
Multiple Airlines
Mon 3/22:10 pm
SEA
-
BLL
1 stop15h 25m
Multiple Airlines
Deal found 2/10$559
This Ticket deal was found by Cheapflights users on 2/8. 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.
Thu 2/266:00 am
BLL
-
SEA
2 stops17h 44m
KLM
Mon 3/29:45 am
SEA
-
BLL
2 stops16h 35m
KLM
Deal found 2/8$576
This Delta deal was found by Cheapflights users on 2/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/266:00 am
BLL
-
SEA
1 stop14h 40m
Delta
Mon 3/28:30 am
SEA
-
BLL
2 stops21h 05m
Delta
Deal found 2/9$589

Find flight deals from Denmark to Seattle

Keep the following information in mind while searching for Denmark to Seattle flight deals. Data was last updated February 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$514
(Sembo)

One-way from

$324
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$571
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 Denmark to Seattle/Tacoma Intl
Search Deals
One-way flight from Denmark to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($125 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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denmark 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 February 11, 2026.
Use the filters below to find and compare flights from Denmark to Seattle that are best for you.

Fly from

Denmark

Fly to

Seattle

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 6/3

10:35 pm-11:45 am

1 stop22h 10m

Seattle/Tacoma Intl

Mon 6/8

7:00 pm-3:55 pm

1 stop11h 55m

$537

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 5/2

2:00 pm-8:40 pm

1 stop15h 40m

Seattle/Tacoma Intl

Tue 5/5

7:00 pm-3:55 pm

1 stop11h 55m

$538

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 5/9

4:55 pm-8:40 pm

1 stop12h 45m

Seattle/Tacoma Intl

Tue 5/12

3:40 pm-9:45 pm

1 stop21h 05m

$538

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Tue 6/2

12:25 pm-11:39 pm

2 stops20h 14m

Seattle/Tacoma Intl

Mon 6/8

8:20 pm-11:10 pm

2 stops17h 50m

$541

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/26

6:00 am-11:40 am

1 stop14h 40m

Seattle/Tacoma Intl

Mon 3/2

2:10 pm-11:00 pm

1 stop23h 50m

$552

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 4/2

12:25 pm-11:13 pm

2 stops19h 48m

Seattle/Tacoma Intl

Sat 4/18

8:20 pm-11:10 pm

2 stops17h 50m

$556

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/26

6:00 am-11:40 am

1 stop14h 40m

Seattle/Tacoma Intl

Mon 3/2

2:10 pm-2:35 pm

1 stop15h 25m

$559

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 5/2

10:55 am-12:29 pm

2 stops34h 34m

Seattle/Tacoma Intl

Tue 5/5

10:47 pm-8:00 pm

2 stops36h 13m

$561

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/26

6:00 am-2:44 pm

2 stops17h 44m

Seattle/Tacoma Intl

Mon 3/2

9:45 am-11:20 am

2 stops16h 35m

$576

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 2/26

6:00 am-11:40 am

1 stop14h 40m

Seattle/Tacoma Intl

Mon 3/2

2:10 pm-2:35 pm

1 stop15h 25m

$589

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/9

Showing 1-10 of 27 results
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Best time to book a flight from Denmark to Seattle

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

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

Currently, September is the cheapest month in which you can book a flight from Denmark to Seattle (average of $450). Flying from Denmark to Seattle in July is currently the most expensive (average of $598). 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.

How often are flights from Denmark to Seattle delayed?

About 11% of weekly flights between Denmark and Seattle have experienced delays in the past year, with the average delay time being 127 minutes.

What is the most punctual flight time for Denmark to Seattle flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Denmark to Seattle flights?

Over the last year, Scandinavian Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.

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 February 11, 2026.
Peruse reviews from past customers who have flown with United Airlines, Scandinavian Airlines, and Icelandair from Denmark to Seattle to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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
9,274 reviews
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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
1,679 reviews
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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
611 reviews
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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
7,777 reviews
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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
British Airways
6.7
Okay
7,728 reviews
United Airlines
7.4
Good
9,274 reviews

Boarding

7.7

Food

6.6

Comfort

7.3

Overall

7.4

Crew

8.1

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 Denmark to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Seattle from Denmark?

    For a flight from Denmark to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

  • How long is the flight from Denmark to Seattle?

    Icelandair, Air France, and KLM can get you from Denmark to Seattle in just under 14h 40m. Your travel time can differ by up to 7h 30m. There are 4771 mi between Denmark and Seattle. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Denmark to Seattle are American Airlines ($349), Finnair ($358), and British Airways ($371).

  • What are the most popular routes from Denmark to Seattle?

    Most travelers choose Kastrup Copenhagen - Seattle/Tacoma Intl, Billund - Seattle/Tacoma Intl or Aarhus - Seattle/Tacoma Intl when deciding on the best route from Denmark to Seattle.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Denmark to Seattle (average of $450). Flying from Denmark to Seattle in July is currently the most expensive (average of $598). 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
Edmonds
Lacey
Kent
Renton
Puyallup
Kirkland
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

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Top 6 airlines flying from Denmark to Seattle

Discover the top 6 airlines that operate flights from Denmark 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 February 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$317Average$690FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$430Average$582FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$470Average$650FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$471Average$556FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$567Average$706FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$600Average$796FlexibilityNo cancel feeOn-time77%

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