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Cheap flights from Copenhagen to Seattle from £386

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/10. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
3 Sep — 10 Sep1
1 adult

Cheapflights Tip: The best prices from Kastrup Copenhagen to Seattle/Tacoma Intl are usually found in February or January, booked 49 days in advance, depart on a Wednesday or Tuesday and return on a Monday

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 29 August 2025.

Round-trip from

£386

Popular in

July

Cheapest in

February

Average price

£500
23/10-27/10
  • 23/10-27/10
  • 3 total stops
  • 33h 10m total
  • Copenhagen to Seattle
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£83 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 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 29 August 2025.

Thu 23/1007:45CPH - SEA
2 stops19h 35mMultiple Airlines
Mon 27/1019:50SEA - CPH
1 stop13h 35mMultiple Airlines
Deal found 28/8£386
Thu 23/1007:45CPH - SEA
2 stops19h 35mFinnair
Mon 27/1019:50SEA - CPH
2 stops20h 05mFinnair
Deal found 28/8£390
Sat 25/1006:10CPH - SEA
1 stop14h 45mUnited Airlines
Tue 11/1108:00SEA - CPH
2 stops21h 10mUnited Airlines
Deal found 27/8£395
Wed 8/1006:10CPH - SEA
1 stop14h 45mUnited Airlines
Mon 13/1012:43SEA - CPH
2 stops21h 02mUnited Airlines
Deal found 28/8£396
Sun 14/906:05CPH - SEA
2 stops21h 24mUnited Airlines
Wed 24/923:54SEA - CPH
2 stops22h 16mUnited Airlines
Deal found 27/8£397
Fri 24/1015:00CPH - SEA
2 stops34h 24mUnited Airlines
Tue 11/1107:00SEA - CPH
2 stops22h 10mUnited Airlines
Deal found 27/8£399
Wed 24/906:10CPH - SEA
1 stop14h 45mUnited Airlines
Thu 9/1007:00SEA - CPH
2 stops25h 20mUnited Airlines
Deal found 28/8£400
Fri 26/912:25CPH - SEA
1 stop16h 06mUnited Airlines
Fri 10/1018:50SEA - CPH
1 stop14h 55mUnited Airlines
Deal found 27/8£401
Wed 24/908:40CPH - SEA
2 stops19h 29mMultiple Airlines
Sat 4/1013:35SEA - CPH
1 stop14h 00mMultiple Airlines
Deal found 28/8£405

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 29 August 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

Thu 23/10

07:45-18:20

2 stops19h 35m

Seattle/Tacoma Intl

Mon 27/10

19:50-17:25

1 stop13h 35m

£386

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 24/10

13:15-11:35

2 stops31h 20m

Seattle/Tacoma Intl

Tue 11/11

18:50-16:55

1 stop13h 05m

£386

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 23/10

07:45-18:20

2 stops19h 35m

Seattle/Tacoma Intl

Mon 27/10

19:50-23:55

2 stops20h 05m

£390

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 25/10

06:10-11:55

1 stop14h 45m

Seattle/Tacoma Intl

Tue 11/11

08:00-14:10

2 stops21h 10m

£395

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 8/10

06:10-11:55

1 stop14h 45m

Seattle/Tacoma Intl

Mon 13/10

12:43-18:45

2 stops21h 02m

£396

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 14/9

06:05-18:29

2 stops21h 24m

Seattle/Tacoma Intl

Wed 24/9

23:54-07:10

2 stops22h 16m

£397

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 24/10

15:00-16:24

2 stops34h 24m

Seattle/Tacoma Intl

Tue 11/11

07:00-14:10

2 stops22h 10m

£399

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 24/9

06:10-11:55

1 stop14h 45m

Seattle/Tacoma Intl

Thu 9/10

07:00-17:20

2 stops25h 20m

£400

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 24/9

15:05-18:36

2 stops36h 31m

Seattle/Tacoma Intl

Sat 4/10

15:28-23:25

2 stops22h 57m

£401

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 26/9

12:25-15:45

2 stops36h 20m

Seattle/Tacoma Intl

Fri 10/10

18:50-18:45

1 stop14h 55m

£401

Flights are sorted by cheapest return flights first.

Deals found on 26/8

Showing 1-10 of 20 results
1
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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 22 August 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.

What is the cheapest time of day to fly from CPH to SEA?

Find hourly flight availability from Copenhagen 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 29 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Copenhagen to Seattle as you normally would.

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.

  • How long is the flight from Copenhagen to Seattle?

    For as low as £395, Finnair can have you in Seattle from Copenhagen in 14h 45m. Airlines will cover a distance of 4850 mi. This flight may include one or multiple stops.

  • 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 Seattle?

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

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Can Cheapflights find flights from Copenhagen to Seattle with no change fees?

Need flexible booking options for your flight to Seattle from Copenhagen? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Copenhagen to Seattle become cheaper?

Yes! Start tracking prices for Copenhagen to Seattle flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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