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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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
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 December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/9. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/118:10 amSEA - CPH
2 stops20h 50mMultiple Airlines
Tue 12/166:00 amCPH - SEA
2 stops25h 28mMultiple Airlines
Deal found 12/9$549
This Delta deal was found by Cheapflights users on 12/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/113:05 pmSEA - CPH
1 stop16h 30mDelta
Tue 12/169:55 amCPH - SEA
2 stops21h 30mDelta
Deal found 12/11$662
This Cheapflightsfares deal was found by Cheapflights users on 12/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:00 pmSEA - CPH
1 stop19h 20mLufthansa
Tue 12/166:00 amCPH - SEA
2 stops25h 28mLufthansa
Deal found 12/9$697
This United Airlines deal was found by Cheapflights users on 12/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:25 amSEA - CPH
2 stops18h 00mUnited Airlines
Tue 12/169:50 amCPH - SEA
2 stops20h 10mUnited Airlines
Deal found 12/11$725
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/152:05 pmSEA - CPH
1 stop17h 55mDelta
Thu 12/186:00 amCPH - SEA
2 stops19h 21mDelta
Deal found 12/10$789
This Air France deal was found by Cheapflights users on 12/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:40 pmSEA - CPH
1 stop14h 20mMultiple Airlines
Sun 1/117:25 pmCPH - SEA
1 stop25h 25mMultiple Airlines
Deal found 12/10$804
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/122:00 pmSEA - CPH
1 stop13h 00mLufthansa
Tue 12/166:00 amCPH - SEA
2 stops25h 28mLufthansa
Deal found 12/10$816
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/127:20 amSEA - CPH
2 stops18h 50mDelta
Tue 12/166:45 amCPH - SEA
2 stops22h 38mDelta
Deal found 12/10$846
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/157:00 amSEA - CPH
2 stops19h 25mUnited Airlines
Thu 12/189:50 amCPH - SEA
2 stops20h 17mUnited Airlines
Deal found 12/10$909
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/251:35 pmSEA - CPH
2 stops20h 30mSWISS
Sun 1/117:55 pmCPH - SEA
2 stops35h 48mSWISS
Deal found 12/11$916
This Delta deal was found by Cheapflights users on 12/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/253:05 pmSEA - CPH
1 stop16h 30mDelta
Sun 1/1110:15 amCPH - SEA
2 stops21h 10mDelta
Deal found 12/10$917
This KLM deal was found by Cheapflights users on 12/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/163:05 pmSEA - AAL
1 stop17h 30mKLM
Wed 12/316:00 amAAL - SEA
1 stop14h 50mKLM
Deal found 12/11$2,143

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 December 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$492
(Flysmarter)

One-way from

$271
(oojo)

Popular in

June

Cheapest in

October

Average price

$755

Good round-trip deal

$611 or less

Good one-way deal

$407 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. 10% potential increase in price ($75 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 December 12, 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

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 1/24

11:30 am-2:55 pm

2 stops18h 25m

Billund

Sat 1/31

9:55 am-8:46 pm

2 stops19h 51m

$492

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/19

12:00 pm-3:10 pm

1 stop18h 10m

Kastrup Copenhagen

Thu 4/23

2:15 pm-11:35 pm

1 stop18h 20m

$501

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/19

3:40 pm-4:15 pm

1 stop15h 35m

Kastrup Copenhagen

Thu 4/23

2:00 pm-5:55 pm

1 stop12h 55m

$510

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 1/19

8:10 am-2:00 pm

2 stops20h 50m

Kastrup Copenhagen

Sun 2/1

6:00 am-1:20 pm

1 stop16h 20m

$511

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/23

2:16 pm-4:25 pm

2 stops17h 09m

Kastrup Copenhagen

Tue 4/28

6:40 am-12:20 pm

1 stop14h 40m

$518

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:00 am-10:00 am

2 stops18h 00m

Billund

Sun 3/1

6:30 am-8:56 pm

2 stops23h 26m

$521

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

2:15 pm-3:30 pm

1 stop16h 15m

Billund

Sun 3/1

10:20 am-11:35 am

1 stop34h 15m

$522

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Fri 1/30

7:10 am-11:55 pm

2 stops31h 45m

Aalborg

Tue 2/3

5:40 pm-11:22 pm

2 stops38h 42m

$522

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/18

10:31 am-12:15 pm

2 stops17h 44m

Kastrup Copenhagen

Wed 3/25

8:40 am-9:16 pm

2 stops20h 36m

$523

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Fri 1/30

11:30 am-11:50 pm

2 stops27h 20m

Aarhus

Tue 2/3

2:30 pm-11:22 pm

2 stops41h 52m

$523

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 29 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.

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 December 12, 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 December 12, 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
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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
8,007 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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
1,605 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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
7.0
Good
589 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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
7,626 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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
7,571 reviews
Delta
7.9
Good
8,007 reviews

Food

7.3

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Boarding

8.1

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 Scandinavian Airlines, Icelandair, and Lufthansa fly from Seattle to Denmark in about 15h 35m. The time it takes to get you to your destination can typically vary by up to 2h 50m. 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 $195 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 most reliable airlines from Seattle to Denmark?

    The top 3 most reliable airlines when flying from Seattle to Denmark are Air France (80%), Scandinavian Airlines (80%) and Delta (80%).

  • What are the cheapest flights from Seattle to Denmark?

    On average you can expect to pay $1,293 for a flight from Seattle to Denmark. The cheapest flight overall is $391 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $409.

  • 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.

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Air FranceCheapest$418Average$619FlexibilityNo cancel feeOn-time77%
DeltaCheapest$421Average$753FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$422Average$577FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$492Average$609FlexibilityNo cancel feeOn-time71%
Scandinavian AirlinesCheapest$497Average$726FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$528Average$649FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$535Average$630FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$535Average$726FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%
KLMCheapest$540Average$683FlexibilityNo cancel feeOn-time75%

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