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Denmark

$271+ Cheap flights from Seattle (SEA) 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 4/30. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap flight deals from Seattle to Denmark

Cheapest flights from Seattle to Denmark
Explore the most affordable flight options available from Seattle to Denmark. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This CrystalTravel 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 CrystalTravel 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 stop12h 55m
Icelandair
Deal found 1/26$413
This Flighttix 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/162:35 pm
SEA
-
CPH
1 stop29h 45m
Icelandair
Tue 3/312:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/27$416
This lastminute.com deal was found by Cheapflights users on 1/25. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/162:35 pm
SEA
-
CPH
1 stop29h 45m
Icelandair
Mon 3/212:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/25$422
This CrystalTravel 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 CrystalTravel 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
Fri 5/152:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 1/26$428
This 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/257:00 pm
SEA
-
CPH
1 stop11h 55m
Icelandair
Sat 5/24:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 1/26$429
This oojo 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 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 stop21h 05m
Icelandair
Sat 5/94:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 1/27$430
This oojo 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 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 stop12h 55m
Icelandair
Deal found 1/27$437
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/133:40 pm
SEA
-
CPH
1 stop21h 05m
Icelandair
Wed 5/277:20 am
CPH
-
SEA
1 stop22h 20m
Icelandair
Deal found 1/27$438
This CrystalTravel 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 CrystalTravel 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
Thu 3/56:15 am
CPH
-
SEA
1 stop19h 45m
Icelandair
Deal found 1/27$442
This oojo 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 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 stop12h 10m
Icelandair
Wed 3/412:55 pm
CPH
-
SEA
1 stop13h 05m
Icelandair
Deal found 1/27$444
This Air France 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/202:15 pm
SEA
-
BLL
1 stop23h 45m
Air France
Sun 3/16:30 am
BLL
-
SEA
1 stop15h 35m
Air France
Deal found 1/27$474
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/175:30 am
SEA
-
BLL
2 stops24h 05m
Delta
Wed 2/256:30 am
BLL
-
SEA
1 stop15h 50m
Delta
Deal found 1/27$478

Find flight deals from Seattle to Denmark

Keep the following information in mind while searching for Seattle to Denmark flight deals. Data was last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$413
(CrystalTravel)

One-way from

$271
(Trip.com)

Popular in

June

Cheapest in

October

Average price

$535

Good round-trip deal

$537 or less

Good one-way deal

$506 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 Seattle/Tacoma Intl to Denmark
Search Deals
One-way flight from Seattle/Tacoma Intl to Denmark
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($85 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Denmark.
Search Deals
Price to beat on a one-way flight from Seattle/Tacoma Intl to Denmark.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle 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 27, 2026.
Use the filters below to find and compare flights from Seattle to Denmark that are best for you.

Fly from

Seattle

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

$448

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 2/17

5:30 am-2:35 pm

2 stops24h 05m

Billund

Wed 2/25

6:30 am-1:20 pm

1 stop15h 50m

$478

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 4/14

10:40 pm-6:45 am

1 stop23h 05m

Kastrup Copenhagen

Mon 4/20

6:00 am-5:16 pm

2 stops20h 16m

$482

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/30

7:20 am-6:45 am

1 stop14h 25m

Kastrup Copenhagen

Wed 4/8

6:00 am-6:26 pm

2 stops21h 26m

$483

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 2/17

3:05 pm-9:40 am

1 stop33h 35m

Billund

Wed 2/25

6:30 am-1:20 pm

1 stop15h 50m

$487

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:10 am-11:20 am

2 stops19h 10m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$487

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 2/25

2:15 pm-5:00 pm

1 stop17h 45m

Kastrup Copenhagen

Wed 3/4

6:45 am-4:48 pm

2 stops19h 03m

$496

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/9

3:10 pm-2:40 pm

1 stop15h 30m

Kastrup Copenhagen

Mon 3/16

6:45 am-7:05 pm

2 stops20h 20m

$498

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 3/5

3:05 pm-4:15 pm

1 stop16h 10m

Kastrup Copenhagen

Sun 3/15

6:45 am-2:05 pm

1 stop15h 20m

$499

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 3/5

12:36 pm-2:05 pm

2 stops40h 29m

Kastrup Copenhagen

Sat 3/14

6:50 am-1:10 pm

1 stop14h 20m

$504

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 32 results
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Best time to book a flight from Seattle to Denmark

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

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Denmark (average of $230). Flying from Seattle 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.

Reviews of airlines servicing Denmark

Get insights into the airlines that provide service to Denmark. 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 Denmark. Reviews last updated January 27, 2026.
See what other customers who have flown with Delta, United Airlines, and Scandinavian Airlines from Seattle to Denmark have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,121 reviews
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,207 reviews
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Scandinavian Airlines
7.3
Good
1,669 reviews
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Icelandair
7.1
Good
603 reviews
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Lufthansa
6.8
Okay
7,749 reviews
Delta
7.9
Good
8,121 reviews

Food

7.2

Boarding

8.1

Overall

7.9

Comfort

7.9

Crew

8.5

Entertainment

7.8

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

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

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Denmark. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Denmark flight route?

    This flight path from Seattle/Tacoma Intl to Denmark was viewed by 7 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 Seattle to Denmark?

    Airlines like Icelandair, Delta, and United Airlines fly from Seattle to Denmark in about 12h 10m. The time it takes to get you to your destination can typically vary by up to 28h 05m. There are 4850 mi between Seattle and Denmark. This flight may include one or multiple stops.

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

    One-way options have recently been found by users for as low as $194 on Icelandair. Other airlines that offer cheap prices include Lufthansa from $335 and Delta from $350 one-way.

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

    When deciding which route to take from Seattle to Denmark consider Seattle/Tacoma Intl - Kastrup Copenhagen, Seattle/Tacoma Intl - Billund or Seattle/Tacoma Intl - Aalborg as they are the most popular.

  • What are the cheapest flights from Seattle to Denmark?

    On average you can expect to pay $1,523 for a flight from Seattle to Denmark. The cheapest flight overall is $388 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $421.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Denmark (average of $230). Flying from Seattle 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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See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Seattle to Denmark

Discover the top 10 airlines that operate flights from Seattle 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 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$385Average$665FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$418Average$618FlexibilityNo cancel feeOn-time77%
IcelandairCheapest$422Average$573FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$497Average$723FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$506Average$681FlexibilityNo cancel feeOn-time70%
KLMCheapest$524Average$667FlexibilityNo cancel feeOn-time75%
DeltaCheapest$531Average$747FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$535Average$725FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$535Average$713FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%

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