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Denmark

$165+ 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 4/15. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
Apr 10 — Apr 171
Fri 4/10
Fri 4/17
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 March 11, 2026.

This Mytrip deal was found by Cheapflights users on 3/9. 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.
Sat 4/187:00 pm
SEA
-
CPH
1 stop32h 55m
Icelandair
Tue 4/284:55 pm
CPH
-
SEA
1 stop34h 00m
Icelandair
Deal found 3/9$419
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 pm
SEA
-
CPH
1 stop32h 55m
Icelandair
Tue 4/284:55 pm
CPH
-
SEA
1 stop34h 00m
Icelandair
Deal found 3/10$420
This Mytrip deal was found by Cheapflights users on 3/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:00 pm
SEA
-
CPH
1 stop32h 55m
Icelandair
Wed 4/2210:35 pm
CPH
-
SEA
1 stop28h 20m
Icelandair
Deal found 3/11$421
This oojo deal was found by Cheapflights users on 3/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:00 pm
SEA
-
CPH
1 stop17h 45m
Icelandair
Tue 4/282:00 pm
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 3/9$423
This Mytrip deal was found by Cheapflights users on 3/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 pm
SEA
-
CPH
1 stop17h 45m
Icelandair
Wed 4/297:20 am
CPH
-
SEA
1 stop22h 20m
Icelandair
Deal found 3/8$424
This FlightHub deal was found by Cheapflights users on 3/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 pm
SEA
-
CPH
1 stop17h 45m
Icelandair
Sun 4/267:20 am
CPH
-
SEA
1 stop22h 20m
Icelandair
Deal found 3/9$427
This Mytrip deal was found by Cheapflights users on 3/9. 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.
Sun 4/263:40 pm
SEA
-
CPH
1 stop21h 05m
Icelandair
Thu 5/144:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 3/9$429
This oojo deal was found by Cheapflights users on 3/11. 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.
Wed 4/223:40 pm
SEA
-
CPH
1 stop21h 05m
Icelandair
Fri 5/84:55 pm
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 3/11$430
This oojo deal was found by Cheapflights users on 3/6. 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.
Wed 4/293:40 pm
SEA
-
CPH
1 stop21h 05m
Icelandair
Sun 5/104:55 pm
CPH
-
SEA
1 stop34h 00m
Icelandair
Deal found 3/6$432
This Mytrip deal was found by Cheapflights users on 3/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:00 pm
SEA
-
CPH
1 stop32h 55m
Icelandair
Wed 4/227:20 am
CPH
-
SEA
1 stop22h 20m
Icelandair
Deal found 3/10$436
This KLM deal was found by Cheapflights users on 3/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:45 pm
SEA
-
AAL
1 stop35h 15m
KLM
Thu 4/302:15 pm
AAL
-
SEA
1 stop30h 25m
KLM
Deal found 3/9$479
This Delta deal was found by Cheapflights users on 3/9. 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 4/237:15 am
SEA
-
AAL
2 stops17h 45m
Delta
Thu 4/307:00 am
AAL
-
SEA
2 stops21h 59m
Delta
Deal found 3/9$484

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 March 11, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$419
(Mytrip)

One-way from

$165
(Mytrip)

Popular in

December

Cheapest in

February

Average price

$538

Good round-trip deal

$600 or less

Good one-way deal

$384 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. 1% potential increase in price ($9 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 11, 2026.
Use the filters below to find and compare flights from Seattle to Denmark that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 5/6

4:36 pm-6:15 pm

2 stops16h 39m

Kastrup Copenhagen

Wed 5/13

9:00 am-8:07 pm

1 stop20h 07m

$474

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Thu 4/23

1:45 pm-10:00 am

1 stop35h 15m

Aalborg

Thu 4/30

2:15 pm-11:40 am

1 stop30h 25m

$479

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 4/25

5:35 pm-1:40 pm

1 stop35h 05m

Aalborg

Sat 5/2

10:30 am-11:42 am

1 stop34h 12m

$479

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 4/19

1:45 pm-10:00 am

1 stop35h 15m

Aalborg

Thu 5/7

2:15 pm-11:42 am

1 stop30h 27m

$479

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Thu 4/23

7:15 am-1:40 pm

2 stops21h 25m

Aalborg

Sat 5/2

6:20 am-11:45 am

1 stop14h 25m

$484

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Wed 4/22

6:00 am-10:00 am

2 stops19h 00m

Aalborg

Fri 5/1

10:30 am-8:25 pm

2 stops18h 55m

$494

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 5/18

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Tue 5/26

12:45 pm-5:59 pm

2 stops38h 14m

$496

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 4/13

7:15 am-11:05 am

2 stops18h 50m

Kastrup Copenhagen

Sun 4/26

8:10 am-8:46 pm

1 stop21h 36m

$515

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 4/8

7:15 am-11:05 am

2 stops18h 50m

Kastrup Copenhagen

Thu 4/23

9:25 am-8:43 pm

2 stops20h 18m

$515

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 5/9

6:40 pm-11:25 am

1 stop31h 45m

Kastrup Copenhagen

Sat 5/23

6:00 am-4:53 pm

2 stops19h 53m

$525

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 43 resultsSorted by cheapest first
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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 $229). Flying from Seattle to Denmark in June is currently the most expensive (average of $541). 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 March 11, 2026.
See what other customers who have flown with Delta,Scandinavian Airlines, andIcelandair 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
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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
8,277 reviews
Delta
7.9
Good
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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
1,708 reviews
Delta
7.9
Good
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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
619 reviews
Delta
7.9
Good
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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
7,843 reviews
Delta
7.9
Good
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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
7,781 reviews
Delta
7.9
Good
8,277 reviews

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Overall

7.9

Crew

8.5

Food

7.2

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 Delta, KLM, and United Airlines fly from Seattle to Denmark in about 16h 39m. The time it takes to get you to your destination can typically vary by up to 18h 36m. 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 Scandinavian Airlines from $279 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 $1,417 for a flight from Seattle to Denmark. The cheapest flight overall is $368 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $420.

  • 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 $229). Flying from Seattle to Denmark in June is currently the most expensive (average of $541). 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

Browse thousands of different options on Cheapflights for your next trip

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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 March 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
FinnairCheapest$385Average$668FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$420Average$565FlexibilityNo cancel feeOn-time76%
DeltaCheapest$421Average$755FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$469Average$615FlexibilityNo cancel feeOn-time77%
Scandinavian AirlinesCheapest$498Average$716FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$506Average$718FlexibilityNo cancel feeOn-time70%
KLMCheapest$528Average$683FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$530Average$731FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$535Average$754FlexibilityNo cancel feeOn-time69%
Air CanadaCheapest$536Average$683FlexibilityNo cancel feeOn-time67%

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