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Cheap flights from Copenhagen to Seattle from £374

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
5 May — 12 May1
1 adult

Cheap flight deals from Copenhagen to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Copenhagen (CPH) to Seattle (SEA). 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 30 April 2025.

Round-trip from

£374

Popular in

July

Cheapest in

February

Average price

£459
British Airways
  • British Airways
  • 10/9-15/10
  • 4 total stops
  • 37h 37m total
  • Copenhagen to Seattle
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£77 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
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Find flight deals from Copenhagen to Seattle

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

Wed 10/910:20CPH - SEA
2 stops20h 18mBritish Airways
Wed 15/1010:46SEA - CPH
2 stops17h 19mBritish Airways
Deal found 29/4£374
Thu 23/1006:10CPH - SEA
1 stop14h 45mLufthansa
Mon 27/1015:00SEA - CPH
1 stop14h 25mLufthansa
Deal found 29/4£390
Mon 22/1206:55CPH - SEA
2 stops45h 17mUnited Airlines
Tue 6/115:10SEA - CPH
1 stop12h 30mUnited Airlines
Deal found 29/4£392
Fri 12/913:05CPH - SEA
Nonstop9h 55mScandinavian Airlines
Sun 21/916:20SEA - CPH
Nonstop9h 40mScandinavian Airlines
Deal found 29/4£407
Thu 11/914:00CPH - SEA
1 stop12h 50mIcelandair
Fri 19/915:45SEA - CPH
1 stop15h 00mIcelandair
Deal found 29/4£429
Fri 23/506:00CPH - SEA
1 stop14h 40mDelta
Fri 6/621:45SEA - CPH
1 stop23h 45mDelta
Deal found 29/4£519
Sat 19/706:40CPH - SEA
1 stop17h 10mSWISS
Sat 9/816:20SEA - CPH
1 stop22h 05mSWISS
Deal found 29/4£538
Thu 24/706:10CPH - SEA
1 stop14h 45mMultiple Airlines
Thu 7/807:20SEA - CPH
1 stop14h 50mMultiple Airlines
Deal found 29/4£594
Wed 16/712:25CPH - SEA
1 stop12h 35mFinnair
Sat 2/817:40SEA - CPH
1 stop13h 35mFinnair
Deal found 30/4£653
Mon 4/819:25CPH - SEA
4 stops53h 28mEthiopian Air
Mon 25/808:00SEA - CPH
4 stops39h 40mEthiopian Air
Deal found 30/4£2,291

Cheapflights Fare Finder

Customise your flight search to find flights from Copenhagen 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 858,174 searches. Data last updated 30 April 2025.
Use the filters below to find and compare flights from Copenhagen to Seattle that are best for you.

Fly from

Copenhagen

Fly to

Seattle

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/9

10:20-21:38

2 stops20h 18m

Seattle/Tacoma Intl

Wed 15/10

10:46-13:05

2 stops17h 19m

£374

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 23/10

06:10-11:55

1 stop14h 45m

Seattle/Tacoma Intl

Mon 27/10

15:00-13:25

1 stop14h 25m

£390

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 12/9

13:05-14:00

Nonstop9h 55m

Seattle/Tacoma Intl

Sun 21/9

16:20-11:00

Nonstop9h 40m

£407

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/9

14:00-17:50

1 stop12h 50m

Seattle/Tacoma Intl

Fri 19/9

15:45-15:45

1 stop15h 00m

£429

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 14/6

12:40-08:49

2 stops29h 09m

Seattle/Tacoma Intl

Mon 30/6

23:45-07:10

2 stops22h 25m

£436

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 23/5

06:00-11:40

1 stop14h 40m

Seattle/Tacoma Intl

Fri 6/6

21:45-06:30

1 stop23h 45m

£519

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 19/7

06:40-14:50

1 stop17h 10m

Seattle/Tacoma Intl

Sat 9/8

16:20-23:25

1 stop22h 05m

£538

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 24/7

06:10-11:55

1 stop14h 45m

Seattle/Tacoma Intl

Thu 7/8

07:20-07:10

1 stop14h 50m

£594

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 16/7

12:25-16:00

1 stop12h 35m

Seattle/Tacoma Intl

Sat 2/8

17:40-16:15

1 stop13h 35m

£653

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 4/8

19:25-15:53

4 stops53h 28m

Seattle/Tacoma Intl

Mon 25/8

08:00-08:40

4 stops39h 40m

£2,291

Flights are sorted by cheapest return flights first.

Deals found on 29/4

Showing 1-10 of 16 results
1
2

Best time to book a flight from Copenhagen to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Copenhagen with our price prediction graph.
Estimated return 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 Copenhagen to Seattle

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

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

The price you pay for your flight from Copenhagen to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 49 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 Copenhagen to Seattle?

Currently, January is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of £622). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £946). 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.

Rainfall in Seattle by month

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

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

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

If weather is an important factor for your trip to Seattle, 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 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

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 30 April 2025.
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,936 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,275 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,588 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Turkish Airlines
7.3
Good
3,790 reviews
Delta
8.0
Very Good
7,936 reviews
Check prices

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Comfort

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Copenhagen to Seattle. 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 Copenhagen to Seattle flight route?

    The Kastrup Copenhagen to Seattle/Tacoma Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

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

    Our cheapest airline available from Copenhagen to Seattle is British Airways. Our recent data shows that you can find tickets from as low as £374 on this airline. Additional options worth looking into are Lufthansa and Scandinavian Airlines, starting at £390 and £407 round-trip. British Airways is 16% cheaper than the average price of flights available within the next 90 days to this destination.

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

    To fly one-way, consider booking your trip with Finnair, which is currently one of the cheapest options available, starting at £509. Turkish Airlines flights start at £574 while deals on Delta start at £650 one-way.

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

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

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

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

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

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

    Currently, January is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of £622). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £946). 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

Travelling to a place near Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

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