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$368+ 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 12/7. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap flight deals from Denmark to Seattle

Keep the following information in mind while searching for Denmark to Seattle flight deals. Data was last updated September 11, 2025.

Round-trip from

$491
(oojo)

One-way from

$368
(Finnair)

Popular in

July

Cheapest in

February

Average price

$595

Good round-trip deal

$1,167 or less

Good one-way deal

$929 or less
From Denmark to Seattle/Tacoma Intl
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One-way flight from Denmark to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 19% potential increase in price ($151 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Denmark to Seattle/Tacoma Intl.
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Price to beat on a one-way flight from Denmark to Seattle/Tacoma Intl.
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Find 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 September 11, 2025.

This oojo deal was found by Cheapflights users on 9/11. 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 10/232:00 pmCPH - SEA
1 stop12h 50mIcelandair
Mon 10/273:35 pmSEA - CPH
1 stop12h 10mIcelandair
Deal found 9/11$491
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:45 pmBLL - SEA
1 stop23h 45mBritish Airways
Sun 11/96:50 pmSEA - BLL
1 stop32h 30mBritish Airways
Deal found 9/11$505
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:45 pmBLL - SEA
1 stop23h 45mBritish Airways
Tue 11/181:25 pmSEA - BLL
1 stop14h 05mBritish Airways
Deal found 9/10$506
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:45 pmBLL - SEA
2 stops35h 33mBritish Airways
Sun 11/96:50 pmSEA - BLL
1 stop32h 30mBritish Airways
Deal found 9/11$510
This British Airways deal was found by Cheapflights users on 9/10. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:45 pmBLL - SEA
2 stops35h 33mBritish Airways
Sun 11/166:50 pmSEA - BLL
1 stop32h 30mBritish Airways
Deal found 9/10$512
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/134:45 pmCPH - SEA
1 stop12h 55mIcelandair
Sun 10/263:35 pmSEA - CPH
1 stop15h 10mIcelandair
Deal found 9/10$516
This Icelandair deal was found by Cheapflights users on 9/10. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1410:35 pmCPH - SEA
1 stop31h 05mIcelandair
Sat 10/253:50 pmSEA - CPH
1 stop12h 10mIcelandair
Deal found 9/10$518
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/154:15 pmCPH - SEA
2 stops37h 31mAmerican Airlines
Fri 10/248:20 pmSEA - CPH
1 stop30h 30mAmerican Airlines
Deal found 9/10$521
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/161:50 pmCPH - SEA
2 stops33h 22mAmerican Airlines
Tue 10/2110:00 amSEA - CPH
2 stops24h 15mAmerican Airlines
Deal found 9/10$523
This Travelis deal was found by Cheapflights users on 9/10. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/168:50 amCPH - SEA
2 stops19h 39mMultiple Airlines
Thu 10/238:20 pmSEA - CPH
1 stop18h 10mMultiple Airlines
Deal found 9/10$526
This Finnair deal was found by Cheapflights users on 9/11. 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.
Thu 10/237:45 amCPH - SEA
2 stops19h 35mFinnair
Mon 10/277:50 pmSEA - CPH
2 stops20h 05mFinnair
Deal found 9/11$531
This British Airways deal was found by Cheapflights users on 9/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/278:45 pmBLL - SEA
1 stop23h 45mBritish Airways
Tue 11/46:50 pmSEA - BLL
1 stop32h 20mBritish Airways
Deal found 9/11$544

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 September 11, 2025.
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

Thu 10/30

12:55 pm-6:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Sat 11/8

2:35 pm-12:00 pm

1 stop12h 25m

$491

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/3

8:45 pm-11:30 am

1 stop23h 45m

Seattle/Tacoma Intl

Sun 11/9

6:50 pm-12:20 pm

1 stop32h 30m

$505

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/3

8:45 pm-11:30 am

1 stop23h 45m

Seattle/Tacoma Intl

Wed 11/12

6:50 pm-7:50 pm

1 stop16h 00m

$506

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/3

8:45 pm-11:30 am

1 stop23h 45m

Seattle/Tacoma Intl

Tue 11/18

1:25 pm-12:30 pm

1 stop14h 05m

$506

BillundSeattle

BLL - SEA

BLLSEA

Billund

Mon 11/3

8:45 pm-11:18 pm

2 stops35h 33m

Seattle/Tacoma Intl

Mon 11/17

6:50 pm-12:30 pm

1 stop32h 40m

$512

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 10/19

4:45 pm-8:40 pm

1 stop12h 55m

Seattle/Tacoma Intl

Sat 10/25

3:50 pm-12:45 pm

1 stop11h 55m

$516

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 10/18

4:45 pm-8:40 pm

1 stop12h 55m

Seattle/Tacoma Intl

Mon 10/20

3:45 pm-12:55 pm

1 stop12h 10m

$516

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

4:45 pm-8:40 pm

1 stop12h 55m

Seattle/Tacoma Intl

Tue 10/21

3:45 pm-12:55 pm

1 stop12h 10m

$516

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

2:00 pm-5:50 pm

1 stop12h 50m

Seattle/Tacoma Intl

Sat 10/25

3:50 pm-12:45 pm

1 stop11h 55m

$516

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

2:00 pm-5:50 pm

1 stop12h 50m

Seattle/Tacoma Intl

Fri 10/24

7:00 pm-3:45 pm

1 stop11h 45m

$516

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 37 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, January is the cheapest month in which you can book a flight from Denmark to Seattle (average of $238). Flying from Denmark to Seattle in June is currently the most expensive (average of $388). 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 DK to SEA?

Find hourly flight availability from Denmark to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 11, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Denmark to Seattle as you normally would.

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 September 11, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines, American 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.
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Scandinavian Airlines
7.4
Good
1,484 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
American Airlines
7.2
Good
10,000 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Icelandair
7.0
Good
546 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
Lufthansa
6.8
Okay
7,409 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu
British Airways
6.7
Okay
7,361 reviews
Scandinavian Airlines
7.4
Good
1,484 reviews

Boarding

7.7

Overall

7.4

Entertainment

6.7

Food

6.7

Crew

8.0

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Kent,Aug 2025

CPH - SEA

When I got to Copenhagen, my two suitcases were missing from Monday 1030. I got them back Friday after five in the afternoon. My flight from Copenhagen to Seattle did not make the connection from Seattle to Honolulu

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, British Airways, and Delta can get you from Denmark to Seattle in just under 13h 05m. Your travel time can differ by up to 10h 40m. There are 4850 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 Finnair ($368), American Airlines ($429), and Lufthansa ($588).

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

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

  • What are the most reliable airlines from Denmark to Seattle?

    No one likes to see their flight delayed. When booking a flight from Denmark to Seattle consider choosing Scandinavian Airlines (77%), Delta (77%) or Air France (50%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Denmark to Seattle?

    While on average a flight from Denmark to Seattle is generally $1,204, our data shows the cheapest flight currently is $754. When looking at the most popular route, (Kastrup Copenhagen - Seattle/Tacoma Intl), you can expect to pay $474 for that flight.

  • 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, January is the cheapest month in which you can book a flight from Denmark to Seattle (average of $238). Flying from Denmark to Seattle in June is currently the most expensive (average of $388). 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
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Shoreline

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Alternative routes for Denmark to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Denmark to Seattle

Discover the top 7 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$430Average$595FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$456Average$556FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$463Average$576FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$483Average$690FlexibilityNo cancel feeOn-time76%
DeltaCheapest$498Average$632FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$516Average$658FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$600Average$808FlexibilityNo cancel feeOn-time77%

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