Find flights
Deals
When to book
FAQs

Cheap flights from Copenhagen to Seattle from £311

CPH — SEA
19 Sep — 26 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Copenhagen to Seattle

Enter your travel dates to find the best prices.

Cheapest flights from Copenhagen to Seattle

Sun 6/915:20 -
1 stop16h 36m
Sun 20/920:20 -
1 stop17h 20m
Deal found 17/8£440
Thu 1/1008:50 -
2 stops19h 58m
Mon 5/1015:14 -
2 stops16h 36m
Deal found 17/8£446
Fri 18/908:50 -
2 stops19h 58m
Fri 2/1020:20 -
1 stop18h 05m
Deal found 15/8£447
Tue 8/907:15 -
2 stops24h 41m
Mon 14/913:40 -
2 stops18h 10m
Deal found 15/8£453
Fri 2/1021:15 -
2 stops31h 33m
Tue 6/1013:30 -
1 stop17h 05m
Deal found 18/8£459
Wed 16/909:25 -
1 stop16h 10m
Wed 23/921:50 -
1 stop14h 45m
Deal found 17/8£466
Mon 7/922:35 -
1 stop22h 10m
Sat 12/923:25 -
1 stop28h 30m
Deal found 15/8£467
Sat 12/907:20 -
1 stop13h 25m
Fri 25/919:00 -
1 stop17h 45m
Deal found 16/8£469

Find flight deals from Copenhagen to Seattle

Round-trip from

£440

One-way from

£311

Popular in

July

Cheapest in

November

Average price

£544

Good round-trip deal

£743 or less
British Airways
  • British Airways
  • 6/9-20/9
  • 2 total stops
  • 33h 56m total
  • Copenhagen to Seattle
Search Deals
Finnair
  • Finnair
  • 20/10
  • 2 total stops
  • 21h 11m total
  • Copenhagen to Seattle
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£92 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 August 2026
Search Deals
Price to beat on a round-trip flight from Kastrup Copenhagen to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Copenhagen to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Sun 6/9

15:20-22:56

1 stop16h 36m

Seattle/Tacoma Intl

Sun 20/9

20:20-22:40

1 stop17h 20m

£440

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Thu 1/10

08:50-19:48

2 stops19h 58m

Seattle/Tacoma Intl

Mon 5/10

15:14-16:50

2 stops16h 36m

£446

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Fri 18/9

08:50-19:48

2 stops19h 58m

Seattle/Tacoma Intl

Fri 2/10

20:20-23:25

1 stop18h 05m

£448
Fastest return journey

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Wed 16/9

09:25-16:35

1 stop16h 10m

Seattle/Tacoma Intl

Wed 23/9

21:50-21:35

1 stop14h 45m

£466

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Fri 18/9

09:00-23:50

2 stops23h 50m

Seattle/Tacoma Intl

Fri 2/10

22:40-06:45

1 stop23h 05m

£485
Cheapest one-way

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Mon 19/10

12:25-00:36

2 stops21h 11m

£313

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Sat 17/10

08:50-00:36

2 stops24h 46m

£355

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Mon 4/1

11:25-16:50

1 stop14h 25m

£539

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Thu 1/10

12:25-00:11

2 stops20h 46m

£547

CopenhagenSeattle

CPH Kastrup Copenhagen - SEA Seattle/Tacoma Intl

CPHSEA

Kastrup Copenhagen

Sat 26/9

10:55-11:35

1 stop33h 40m

£548

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 14 resultsSorted by cheapest first
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

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?

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 48 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, November is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of £407). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £721). 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?

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.

How much does it cost for a return flight from Copenhagen to Seattle?

Airfare is below average for this route at the moment.

Copenhagen to Seattle flights typically cost between £437 and £615 in January.
The cheapest return price found within the last 5 days was £426 on Icelandair (10 Jan–7 Feb).

Related info for your journey

  • 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 £440, British Airways can have you in Seattle from Copenhagen in 16h 36m. 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 Air France (63%), Scandinavian Airlines (63%) and Delta (63%).

  • What are the cheapest flights from Copenhagen to Seattle?

    The cheapest flight price from Copenhagen to Seattle is £724. On average you can expect to pay £769. The most popular route, (Kastrup Copenhagen - Seattle/Tacoma Intl), can usually be booked for £619.

  • 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, November is the cheapest month in which you can book a flight from Copenhagen to Seattle (average of £407). Flying from Copenhagen to Seattle in July is currently the most expensive (average of £721). 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
Federal Way
SeaTac

Browse thousands of different options on Cheapflights for your next trip

Fly with Cheapflights

How does Cheapflights help users find flights from Copenhagen to Seattle?

Cheapflights makes it easy to find Copenhagen to Seattle flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Copenhagen to Seattle?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Seattle from Copenhagen.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.