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$466+ 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 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
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 October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$527
(Ticket)

One-way from

$466
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$586

Good one-way deal

$735 or less
Provider with most accurate pricing for Kastrup Copenhagen-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Kastrup Copenhagen-Seattle/Tacoma Intl flights.
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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. 18% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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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 October 30, 2025.

This Ticket deal was found by Cheapflights users on 10/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:45 amCPH - SEA
1 stop15h 35mAir France
Tue 12/21:40 pmSEA - CPH
1 stop16h 00mAir France
Deal found 10/30$527
This Ticket deal was found by Cheapflights users on 10/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amBLL - SEA
1 stop14h 45mAir France
Mon 11/172:05 pmSEA - BLL
1 stop15h 30mAir France
Deal found 10/30$527
This ResecentrumGruppen deal was found by Cheapflights users on 10/30. 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 ResecentrumGruppen is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/176:00 amCPH - SEA
1 stop14h 45mMultiple Airlines
Tue 12/21:40 pmSEA - CPH
1 stop16h 00mMultiple Airlines
Deal found 10/30$531
This Ticket deal was found by Cheapflights users on 10/29. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/201:25 pmCPH - SEA
1 stop12h 35mIcelandair
Thu 12/42:35 pmSEA - CPH
1 stop21h 00mIcelandair
Deal found 10/29$532
This Ticket deal was found by Cheapflights users on 10/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amBLL - SEA
1 stop14h 45mMultiple Airlines
Mon 11/179:43 amSEA - BLL
2 stops16h 37mMultiple Airlines
Deal found 10/30$537
This Delta deal was found by Cheapflights users on 10/30. 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 11/172:15 pmCPH - SEA
1 stop30h 30mDelta
Tue 12/24:48 pmSEA - CPH
1 stop18h 02mDelta
Deal found 10/30$542
This Delta deal was found by Cheapflights users on 10/30. 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 11/246:00 amCPH - SEA
1 stop14h 45mDelta
Mon 12/12:05 pmSEA - CPH
1 stop15h 35mDelta
Deal found 10/30$548
This KLM deal was found by Cheapflights users on 10/30. 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.
Mon 11/246:00 amCPH - SEA
1 stop14h 45mMultiple Airlines
Mon 12/12:05 pmSEA - CPH
1 stop15h 35mMultiple Airlines
Deal found 10/30$549
This Delta deal was found by Cheapflights users on 10/29. 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 11/206:00 amCPH - SEA
1 stop14h 45mDelta
Thu 12/411:26 amSEA - CPH
2 stops18h 14mDelta
Deal found 10/29$550
This Delta deal was found by Cheapflights users on 10/30. 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 11/256:45 amCPH - SEA
2 stops20h 55mDelta
Tue 12/24:48 pmSEA - CPH
1 stop18h 02mDelta
Deal found 10/30$554
This Air Canada deal was found by Cheapflights users on 10/30. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:30 amBLL - SEA
3 stops24h 46mAir Canada
Mon 11/1710:05 amSEA - BLL
2 stops18h 15mAir Canada
Deal found 10/30$637
This Ticket deal was found by Cheapflights users on 10/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/86:00 amAAL - SEA
2 stops17h 45mMultiple Airlines
Wed 11/123:00 pmSEA - AAL
1 stop13h 45mMultiple Airlines
Deal found 10/30$688

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 October 30, 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

BillundSeattle

BLL - SEA

BLLSEA

Billund

Thu 11/13

6:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Mon 11/17

9:43 am-11:20 am

2 stops16h 37m

$537

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 11/17

6:00 am-8:50 pm

2 stops23h 50m

Seattle/Tacoma Intl

Tue 12/2

4:48 pm-7:50 pm

1 stop18h 02m

$543

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/20

6:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Thu 12/4

11:26 am-2:40 pm

2 stops18h 14m

$550

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 11/17

10:10 am-10:28 pm

2 stops21h 18m

Seattle/Tacoma Intl

Tue 12/2

7:00 am-1:35 pm

2 stops21h 35m

$569

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 11/26

6:00 am-3:35 pm

2 stops18h 35m

Seattle/Tacoma Intl

Tue 12/2

4:48 pm-7:50 pm

1 stop18h 02m

$571

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 11/26

6:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Thu 12/4

1:40 pm-2:40 pm

1 stop16h 00m

$572

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 11/24

9:55 am-11:45 am

1 stop34h 50m

Seattle/Tacoma Intl

Thu 12/4

9:30 am-2:40 pm

2 stops20h 10m

$572

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 11/26

12:55 pm-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Fri 12/5

2:35 pm-12:30 pm

1 stop12h 55m

$573

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/27

1:25 pm-5:00 pm

1 stop12h 35m

Seattle/Tacoma Intl

Fri 12/5

2:35 pm-11:45 am

1 stop12h 10m

$573

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/27

1:25 pm-5:00 pm

1 stop12h 35m

Seattle/Tacoma Intl

Sun 11/30

2:35 pm-8:35 pm

1 stop21h 00m

$573

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 24 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 $402). Flying from Denmark to Seattle in July is currently the most expensive (average of $592). 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 October 30, 2025.

It’s optimal to fly from Denmark to Seattle in the evening. By choosing this option you can save up to 34% on the cost of your flight, compared to a flight at noon.

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 October 30, 2025.
Peruse reviews from past customers who have flown with Scandinavian Airlines, United 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
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Scandinavian Airlines
7.4
Good
1,548 reviews
Scandinavian Airlines
7.4
Good
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
United Airlines
7.4
Good
8,998 reviews
Scandinavian Airlines
7.4
Good
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Icelandair
7.1
Good
562 reviews
Scandinavian Airlines
7.4
Good
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
Lufthansa
6.8
Okay
7,541 reviews
Scandinavian Airlines
7.4
Good
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.
British Airways
6.7
Okay
7,487 reviews
Scandinavian Airlines
7.4
Good
1,548 reviews

Comfort

7.3

Entertainment

6.6

Crew

8.0

Overall

7.4

Boarding

7.6

Food

6.6

Reviews

1 / 20
8.0
Excellent

Scott,Sep 2025

CPH - LAX

Unfortunately, usual rubbish at the gate for SAS reporting that boarding is underway, but clearly that was not the case. Internet worked to start with, but at some point it wouldn't connect using any of the devices I had with me and remained that way for the rest of the trip; could not even blame being out of network coverage, for all of that, as surely it should work across continental USA - worked for so little of the flight for me that I wouldn't have advertised that such a service was actually available; if I had had to pay extra for internet, I would have been demanding that money back.

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?

    Delta, Air Canada, and United Airlines can get you from Denmark to Seattle in just under 23h 50m. Your travel time can differ by up to 17h 33m. 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 most popular routes from Denmark to Seattle?

    Most travelers choose Kastrup Copenhagen - Seattle/Tacoma Intl, Aalborg - Seattle/Tacoma Intl or Aarhus - 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 (62%), Delta (62%) 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 $970, our data shows the cheapest flight currently is $652. When looking at the most popular route, (Kastrup Copenhagen - Seattle/Tacoma Intl), you can expect to pay $521 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 $402). Flying from Denmark to Seattle in July is currently the most expensive (average of $592). 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
SeaTac
Tukwila
Tacoma
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Top 6 airlines flying from Denmark to Seattle

Discover the top 6 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$430Average$573FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$462Average$556FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$463Average$576FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$479Average$690FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$533Average$673FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$600Average$802FlexibilityNo cancel feeOn-time77%

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