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$286+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
dic. 6 — dic. 131
sáb. 12/6
sáb. 12/13
1 adult, Economy
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Cheap flight deals from Seattle to Denmark

Keep the following information in mind while searching for Seattle to Denmark flight deals. Data was last updated noviembre 6, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$447
(KAYAK)

One-way from

$286
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$584

Good round-trip deal

$568 or less

Good one-way deal

$456 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 Seattle/Tacoma Intl to Denmark
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One-way flight from Seattle/Tacoma Intl to Denmark
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Highest demand for flights based on searches. 10% potential increase in price ($72 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Denmark.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Denmark.
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Find 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 noviembre 6, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/92:05 pmSEA - CPH
1 stop16h 20mScandinavian Airlines
sáb. 12/1312:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/6$465
This Icelandair deal was found by Cheapflights users on 11/4. 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.
lun. 11/102:35 pmSEA - CPH
1 stop12h 10mIcelandair
vie. 11/1412:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/4$467
This oojo deal was found by Cheapflights users on 11/5. 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.
mar. 11/182:35 pmSEA - CPH
1 stop21h 00mIcelandair
mar. 11/2512:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/5$472
This oojo deal was found by Cheapflights users on 11/6. 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.
lun. 11/102:35 pmSEA - CPH
1 stop29h 40mIcelandair
mar. 11/2512:55 pmCPH - SEA
1 stop13h 05mIcelandair
Deal found 11/6$473
This FlightHub deal was found by Cheapflights users on 11/4. 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.
dom. 12/77:20 amSEA - CPH
1 stop18h 05mScandinavian Airlines
lun. 12/1512:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/4$475
This CrystalTravel deal was found by Cheapflights users on 11/6. 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.
vie. 12/510:40 amSEA - CPH
1 stop16h 20mScandinavian Airlines
dom. 12/1412:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/6$484
This oojo deal was found by Cheapflights users on 11/4. 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.
jue. 11/272:35 pmSEA - CPH
1 stop21h 00mIcelandair
mié. 12/36:15 amCPH - SEA
1 stop19h 45mIcelandair
Deal found 11/4$490
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
dom. 11/303:10 pmSEA - CPH
1 stop22h 55mLufthansa
mié. 12/38:55 amCPH - SEA
1 stop13h 25mLufthansa
Deal found 11/6$492
This Gurufare deal was found by Cheapflights users on 11/6. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/510:40 amSEA - CPH
1 stop16h 20mScandinavian Airlines
sáb. 12/1312:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/6$493
This KAYAK deal was found by Cheapflights users on 11/4. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/77:20 amSEA - CPH
1 stop18h 05mScandinavian Airlines
dom. 12/1412:45 pmCPH - SEA
1 stop18h 14mScandinavian Airlines
Deal found 11/4$498
This FlightHub deal was found by Cheapflights users on 11/4. 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.
vie. 12/512:45 pmSEA - CPH
1 stop17h 40mScandinavian Airlines
lun. 12/1512:45 pmCPH - SEA
1 stop15h 15mScandinavian Airlines
Deal found 11/4$505
This Air France deal was found by Cheapflights users on 11/4. 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.
vie. 12/52:05 pmSEA - BLL
1 stop23h 55mAir France
dom. 12/1410:20 amBLL - SEA
1 stop34h 30mAir France
Deal found 11/4$520

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 noviembre 6, 2025.
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

lun. 3/16

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

dom. 3/29

7:20 am-8:45 pm

1 stop22h 25m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 3/15

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

dom. 3/29

5:15 pm-8:45 pm

1 stop12h 30m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

lun. 3/16

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

mié. 3/25

6:15 am-6:00 pm

1 stop19h 45m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 3/15

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

mié. 3/25

12:55 pm-6:00 pm

1 stop13h 05m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mar. 3/17

3:35 pm-8:20 pm

1 stop20h 45m

Kastrup Copenhagen

dom. 3/29

5:15 pm-8:45 pm

1 stop12h 30m

$453

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 3/18

7:50 pm-7:00 pm

1 stop15h 10m

Kastrup Copenhagen

mié. 3/25

12:15 pm-12:49 am

2 stops20h 34m

$517

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 3/18

10:01 am-12:15 pm

2 stops18h 14m

Kastrup Copenhagen

mié. 3/25

8:40 am-9:10 pm

2 stops20h 30m

$521

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

dom. 4/12

6:50 pm-6:40 pm

1 stop14h 50m

Kastrup Copenhagen

dom. 4/19

12:25 pm-9:12 pm

2 stops41h 47m

$522

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

sáb. 12/6

3:05 pm-5:50 pm

1 stop17h 45m

Billund

dom. 12/14

10:20 am-11:50 am

1 stop34h 30m

$526

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

vie. 12/5

2:05 pm-3:30 pm

1 stop16h 25m

Billund

dom. 12/14

2:30 pm-10:25 pm

2 stops40h 55m

$530

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/5

Showing 1-10 of 38 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, December is the cheapest month in which you can book a flight from Seattle to Denmark (average of $332). Flying from Seattle to Denmark in June is currently the most expensive (average of $553). 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 SEA to DK?

Find hourly flight availability from Seattle to Denmark. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated noviembre 6, 2025.

It’s optimal to fly from Seattle to Denmark in the evening. By choosing this option you can save up to 12% on the cost of your flight, compared to a flight in the afternoon.

What is the cheapest day to fly from Seattle to Denmark?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Denmark. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Denmark flight should consider departing on Monday afternoons when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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 noviembre 6, 2025.
See what other customers who have flown with Delta, Scandinavian Airlines, and Icelandair 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
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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
8,001 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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
7.4
Good
1,564 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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
572 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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
7,558 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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.
British Airways
6.7
Okay
7,500 reviews
Delta
7.9
Good
8,001 reviews

Crew

8.5

Food

7.3

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Overall

7.9

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 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 Seattle to Denmark?

    Airlines like Icelandair, Air France, and Delta 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 5h 35m. There are 4850 mi between Seattle and Denmark. This flight may include one or multiple stops.

  • 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 most reliable airlines from Seattle to Denmark?

    The top 3 most reliable airlines when flying from Seattle to Denmark are Air France (83%), Scandinavian Airlines (68%) and Delta (68%).

  • What are the cheapest flights from Seattle to Denmark?

    On average you can expect to pay $1,079 for a flight from Seattle to Denmark. The cheapest flight overall is $416 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $408.

  • 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, December is the cheapest month in which you can book a flight from Seattle to Denmark (average of $332). Flying from Seattle to Denmark in June is currently the most expensive (average of $553). 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.

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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 noviembre 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$418Average$623FlexibilityNo cancel feeOn-time77%
DeltaCheapest$421Average$774FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$424Average$580FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$601FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$495Average$724FlexibilityNo cancel feeOn-time77%
FinnairCheapest$504Average$715FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$528Average$728FlexibilityNo cancel feeOn-time70%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%
United AirlinesCheapest$560Average$804FlexibilityNo cancel feeOn-time69%
KLMCheapest$582Average$696FlexibilityNo cancel feeOn-time75%

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