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Cheap flights from Copenhagen to Seattle from £411

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 17/11. Fares are subject to change and may not be available on all flights or dates of travel.
CPH — SEA
30 Nov — 7 Dec1
1 adult
1 adult, Economy, 0 bags

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 Tuesday

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 31 October 2025.

Round-trip from

£411

Popular in

July

Cheapest in

February

Average price

£445
Delta
  • Delta
  • 17/11-2/12
  • 3 total stops
  • 41h 52m total
  • Copenhagen to Seattle
Search Deals
Highest demand for flights based on searches. 18% potential increase in price (£82 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Copenhagen to Seattle

Enter your travel dates to find the best prices.

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 31 October 2025.

Mon 17/1106:00CPH - SEA
2 stops23h 50mDelta
Tue 2/1216:48SEA - CPH
1 stop18h 02mDelta
Deal found 30/10£411
Mon 24/1106:00CPH - SEA
1 stop14h 45mDelta
Mon 1/1214:05SEA - CPH
1 stop15h 35mDelta
Deal found 30/10£416
Mon 24/1106:00CPH - SEA
1 stop14h 45mMultiple Airlines
Wed 3/1214:05SEA - CPH
1 stop15h 35mMultiple Airlines
Deal found 30/10£417
Thu 20/1106:00CPH - SEA
1 stop14h 45mDelta
Thu 4/1211:26SEA - CPH
2 stops18h 14mDelta
Deal found 29/10£417
Tue 25/1106:45CPH - SEA
2 stops20h 55mDelta
Tue 2/1216:48SEA - CPH
1 stop18h 02mDelta
Deal found 30/10£420
Sun 23/1114:15CPH - SEA
1 stop30h 30mDelta
Tue 2/1216:48SEA - CPH
1 stop18h 02mDelta
Deal found 30/10£430
Sun 23/1114:15CPH - SEA
1 stop30h 30mDelta
Thu 4/1209:30SEA - CPH
2 stops20h 10mDelta
Deal found 30/10£434
Tue 25/1112:55CPH - SEA
1 stop13h 05mIcelandair
Fri 5/1214:35SEA - CPH
1 stop12h 55mIcelandair
Deal found 30/10£435

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 31 October 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

Mon 17/11

06:00-20:50

2 stops23h 50m

Seattle/Tacoma Intl

Tue 2/12

16:48-19:50

1 stop18h 02m

£412

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 20/11

06:00-11:45

1 stop14h 45m

Seattle/Tacoma Intl

Thu 4/12

11:26-14:40

2 stops18h 14m

£417

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Tue 25/11

06:45-18:40

2 stops20h 55m

Seattle/Tacoma Intl

Tue 2/12

16:48-19:50

1 stop18h 02m

£420

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 26/11

06:00-15:35

2 stops18h 35m

Seattle/Tacoma Intl

Tue 2/12

16:48-19:50

1 stop18h 02m

£433

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 24/11

09:55-11:45

1 stop34h 50m

Seattle/Tacoma Intl

Thu 4/12

09:30-14:40

2 stops20h 10m

£434

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 26/11

12:55-17:00

1 stop13h 05m

Seattle/Tacoma Intl

Fri 5/12

14:35-12:30

1 stop12h 55m

£435

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 27/11

13:25-17:00

1 stop12h 35m

Seattle/Tacoma Intl

Fri 5/12

14:35-11:45

1 stop12h 10m

£435

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 27/11

13:25-17:00

1 stop12h 35m

Seattle/Tacoma Intl

Sun 30/11

14:35-20:35

1 stop21h 00m

£435

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 19/12

06:00-16:21

2 stops19h 21m

£698

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 5/1

19:50-20:57

4 stops58h 07m

£1,706

Flights are sorted by cheapest return flights first.

Deals found on 30/10

Showing 1-10 of 15 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 24 October 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 £305). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £449). 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 31 October 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 £412, Delta can have you in Seattle from Copenhagen in 23h 50m. Airlines will cover a distance of 4850 mi.

  • What are the most reliable airlines from Copenhagen to Seattle?

    The top 3 most reliable airlines when flying from Copenhagen to Seattle are Scandinavian Airlines (62%), Delta (62%) and Air France (50%).

  • 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 £305). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £449). 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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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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