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$234+ Cheap flights from Seattle (SEA) to Copenhagen (CPH)

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kastrup Copenhagen are usually found in February or January, booked 79 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Seattle to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Copenhagen (CPH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$566
(Air Canada)

One-way from

$241
(oojo)

Popular in

June

Cheapest in

February

Average price

$599

Good round-trip deal

$581 or less

Good one-way deal

$374 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 Kastrup Copenhagen
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One-way flight from Seattle/Tacoma Intl to Kastrup Copenhagen
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Highest demand for flights based on searches. 13% potential increase in price ($100 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 April 2025
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kastrup Copenhagen.
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Price to beat on a one-way flight from Seattle/Tacoma Intl to Kastrup Copenhagen.
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Find flight deals from Seattle to Copenhagen

Cheapest flights from Seattle to Copenhagen
Explore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This FlightHub deal was found by Cheapflights users on 4/28. 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.
Mon 8/254:00 pmSEA - CPH
Nonstop9h 30mScandinavian Airlines
Wed 9/101:05 pmCPH - SEA
Nonstop9h 45mScandinavian Airlines
Deal found 4/28$564
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:55 pmSEA - CPH
2 stops31h 15mAir Canada
Thu 8/2112:45 pmCPH - SEA
1 stop31h 25mAir Canada
Deal found 4/29$566
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/57:00 pmSEA - CPH
1 stop32h 55mIcelandair
Mon 5/1210:35 pmCPH - SEA
1 stop31h 05mIcelandair
Deal found 4/29$567
This Mytrip deal was found by Cheapflights users on 4/28. 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 9/35:30 amSEA - CPH
2 stops20h 20mMultiple Airlines
Tue 9/309:40 amCPH - SEA
2 stops17h 56mMultiple Airlines
Deal found 4/28$570
This Delta deal was found by Cheapflights users on 4/29. 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.
Wed 8/133:20 pmSEA - CPH
2 stops19h 35mDelta
Tue 8/199:00 amCPH - SEA
1 stop22h 53mDelta
Deal found 4/29$577
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 8/1311:45 pmSEA - CPH
2 stops22h 25mUnited Airlines
Wed 8/2012:20 pmCPH - SEA
2 stops42h 56mUnited Airlines
Deal found 4/28$579
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1110:00 amSEA - CPH
2 stops36h 10mLufthansa
Mon 8/187:20 pmCPH - SEA
2 stops32h 16mLufthansa
Deal found 4/29$590
This SWISS deal was found by Cheapflights users on 4/29. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/122:50 pmSEA - CPH
2 stops18h 20mSWISS
Mon 8/188:10 pmCPH - SEA
2 stops31h 39mSWISS
Deal found 4/29$613
This Austrian Airlines deal was found by Cheapflights users on 4/28. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/267:00 amSEA - CPH
2 stops27h 10mAustrian Airlines
Fri 9/127:00 amCPH - SEA
2 stops20h 49mAustrian Airlines
Deal found 4/28$659
This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/38:20 pmSEA - CPH
1 stop18h 00mAmerican Airlines
Tue 6/108:50 amCPH - SEA
2 stops19h 20mAmerican Airlines
Deal found 4/29$665

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Copenhagen 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 April 30, 2025.
Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Seattle

Fly to

Copenhagen

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 8/25

4:00 pm-10:30 am

Nonstop9h 30m

Kastrup Copenhagen

Wed 9/10

1:05 pm-1:50 pm

Nonstop9h 45m

$564

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 8/11

2:55 pm-7:10 am

2 stops31h 15m

Kastrup Copenhagen

Thu 8/21

12:45 pm-11:10 am

1 stop31h 25m

$566

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 8/9

11:30 pm-9:45 pm

1 stop13h 15m

Kastrup Copenhagen

Sun 8/17

10:35 pm-11:25 am

1 stop21h 50m

$568

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 8/4

12:10 pm-7:10 am

2 stops34h 00m

Kastrup Copenhagen

Sun 8/24

8:10 pm-2:55 pm

1 stop27h 45m

$569

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/13

3:20 pm-7:55 pm

2 stops19h 35m

Kastrup Copenhagen

Tue 8/19

9:00 am-10:53 pm

1 stop22h 53m

$577

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/13

11:45 pm-7:10 am

2 stops22h 25m

Kastrup Copenhagen

Wed 8/20

12:20 pm-10:16 pm

2 stops42h 56m

$579

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 8/11

10:00 am-7:10 am

2 stops36h 10m

Kastrup Copenhagen

Mon 8/18

7:20 pm-6:36 pm

2 stops32h 16m

$590

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 8/12

2:50 pm-6:10 pm

2 stops18h 20m

Kastrup Copenhagen

Mon 8/18

8:10 pm-6:49 pm

2 stops31h 39m

$613

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 8/26

7:00 am-7:10 pm

2 stops27h 10m

Kastrup Copenhagen

Fri 9/12

7:00 am-6:49 pm

2 stops20h 49m

$659

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 6/3

8:20 pm-11:20 pm

1 stop18h 00m

Kastrup Copenhagen

Tue 6/10

8:50 am-7:10 pm

2 stops19h 20m

$665

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 21 results
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Compare providers for flights from Seattle to Copenhagen

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Copenhagen in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Copenhagen flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Seattle-Copenhagen flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Seattle-Copenhagen flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Copenhagen flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Copenhagen flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen 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 Copenhagen

How far ahead should I book a flight from Seattle to Copenhagen?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Copenhagen. Price data was last updated on April 25, 2025.

The price you pay for your flight from Seattle to Copenhagen may vary depending on when you book. For the best chance of a lower fare, look to book 79 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of $523). Flying from Seattle to Copenhagen in June is currently the most expensive (average of $903). 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 CPH?

Find hourly flight availability from Seattle to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 30, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 28% on flights from Seattle to Copenhagen by exploring options for tickets in the evening.

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

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

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

Rainfall in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Copenhagen ranges from 0.8 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Copenhagen when rainfall is around 0.8 in.

Temperature in Copenhagen by month

Plan your trip to Copenhagen by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Copenhagen, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. 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 Copenhagen. Reviews last updated April 30, 2025.
Read reviews from past customers who have flown Delta, SWISS and Air France from Seattle to Copenhagen. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,936 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,446 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Scandinavian Airlines
7.3
Good
1,349 reviews
Delta
8.0
Very good
7,936 reviews

Food

7.3

Boarding

8.2

Overall

8.0

Comfort

7.9

Crew

8.5

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Copenhagen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Seattle to Copenhagen flight route?

    Within the past month, 2 users have taken a look at flights from Seattle/Tacoma Intl to Kastrup Copenhagen.

  • What are the cheapest airlines flying from Seattle to Copenhagen round-trip?

    Air Canada, at $566, was found to be the cheapest airline from Seattle to Copenhagen.Alternate airlines to your destination round-trip include Icelandair and Scandinavian Airlines. Air Canada is 12% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $241 on Icelandair. Other airlines that offer cheap prices include Scandinavian Airlines from $453 and Air Canada from $499 one-way.

  • What are the cheapest flights from Seattle to Copenhagen?

    On average you can expect to pay $1,216 for a flight from Seattle to Copenhagen. The cheapest flight overall is $227 while the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen) is currently priced at $477.

  • Where are the most common layover locations when flying from Seattle to Copenhagen?

    The most popular layover on flights from Seattle to Copenhagen is Reykjavik.

  • What are some popular things to do or see while on a layover in Reykjavik?

    If you're on a layover in Reykjavik and looking for things to do, consider visiting Hallgrímskirkja, Harpa, or Laugardalslaug Geothermal Pool. Hallgrímskirkja, Harpa, and Laugardalslaug Geothermal Pool are located about 23.2 mi, 23.3 mi, and 24.6 mi, respectively from Reykjavik Keflavik Intl. Those landing in Reykjavik looking to spend some time exploring during their layover can rent a car for about $47 per day.

  • Where are the least popular layover locations for Seattle to Copenhagen flights?

    Seattle to Copenhagen flights have a layover in London the least frequently.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of $523). Flying from Seattle to Copenhagen in June is currently the most expensive (average of $903). 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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Top 10 airlines flying from Seattle to Copenhagen

Discover the top 10 airlines that operate flights from Seattle to Copenhagen. 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 April 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$413Average$584FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$486Average$696FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$491Average$682FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$496Average$832FlexibilityNo cancel feeOn-time77%
FinnairCheapest$513Average$761FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$520Average$709FlexibilityNo cancel feeOn-time69%
Air FranceCheapest$521Average$728FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$532Average$751FlexibilityNo cancel feeOn-time67%
LufthansaCheapest$553Average$811FlexibilityNo cancel feeOn-time76%
DeltaCheapest$560Average$772FlexibilityNo cancel feeOn-timeN/A

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