How often are flights from Copenhagen to Seattle delayed?

Historically, on average around 11% of flights between Copenhagen and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

Which stopover airport has the shortest connection time from Copenhagen to Seattle?

Helsinki (HEL) has the shortest average stopover time for this route: 1h 48m.

What is the most punctual flight time for Copenhagen to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

Which stopover airport has the shortest travel time from Copenhagen to Seattle?

Flights connecting via Helsinki (HEL) have the shortest average one-way travel time: 11h 45m.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

What is the cheapest airline that flies from Kastrup Copenhagen to Seattle/Tacoma Intl?

Finnair, Delta, and United Airlines are the most popular carriers operating from Kastrup Copenhagen to Seattle/Tacoma Intl

Which airline has the best punctuality record on Copenhagen to Seattle flights?

According to our data, Scandinavian Airlines have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Which stopover airport offers the lowest fares from Copenhagen to Seattle?

Flights via Helsinki (HEL) offer the lowest average return price of £342.

Which airport is the most popular for stopovers for flights between Copenhagen and Seattle?

Reykjavik (KEF) was the most common stop: 62% of momondo users choosing one-stop flights on this route connected there.

When did momondo last update prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

Prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport were last updated today.

How old do you have to be to fly from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£252 Cheap Flights from Copenhagen to Seattle in 2026

Q: What is the typical price of a round-trip flight between Copenhagen and Seattle?

Prices are currently typical for flights on this route. Typical prices usually range from £347 to £495. The lowest price recently found on this route was £394.

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16:55 - 20:40

CPH

SEA

12h 45m

1 stop

19:00 - 15:55

SEA

CPH

11h 55m

1 stop

£394Icelandair

Sat, 9 May - Tue, 12 May

16:55 - 20:40

CPH

SEA

12h 45m

1 stop

19:00 - 15:55

SEA

CPH

11h 55m

1 stop

£396Icelandair

Sat, 9 May - Tue, 12 May

16:55 - 20:40

CPH

SEA

12h 45m

1 stop

19:00 - 15:55

SEA

CPH

11h 55m

1 stop

£398Icelandair

Sat, 9 May - Tue, 12 May

14:15 - 11:40

CPH

SEA

30h 25m

1 stop

14:15 - 17:00

SEA

CPH

17h 45m

1 stop

£399Delta

Mon, 16 Feb - Mon, 23 Feb

14:15 - 11:40

CPH

SEA

30h 25m

1 stop

14:00 - 17:00

SEA

CPH

18h 00m

2 stops

£401Delta

Mon, 16 Feb - Tue, 24 Feb

06:00 - 11:40

CPH

SEA

14h 40m

1 stop

07:10 - 11:15

SEA

CPH

19h 05m

2 stops

£404Delta

Mon, 16 Feb - Mon, 23 Feb

06:00 - 14:44

CPH

SEA

17h 44m

2 stops

14:00 - 17:00

SEA

CPH

18h 00m

2 stops

£405Delta

Tue, 17 Feb - Tue, 24 Feb

06:15 - 12:30

CPH

SEA

14h 15m

1 stop

20:20 - 22:40

SEA

CPH

17h 20m

1 stop

£407Multiple Airlines

Sat, 14 Mar - Sun, 7 Jun

19:25 - 11:40

CPH

SEA

25h 15m

1 stop

15:05 - 16:35

SEA

CPH

16h 30m

1 stop

£415KLM

Sun, 15 Feb - Sun, 22 Feb

06:00 - 20:46

CPH

SEA

23h 46m

2 stops

06:00 - 09:00

SEA

CPH

18h 00m

2 stops

£417Delta

Sun, 15 Feb - Mon, 23 Feb

British Airways flights from Copenhagen to Seattle

Our best British Airways deals on Copenhagen to Seattle flight tickets

British Airways

18 Mar

CPH10:30Kastrup Copenhagen

20h 34m

2 stops

SEA23:04Seattle/Tacoma Intl

25 Mar

SEA13:54Seattle/Tacoma Intl

19h 26m

2 stops

CPH17:20Kastrup Copenhagen

£438

British Airways

14 Feb

CPH06:15Kastrup Copenhagen

19h 40m

1 stop

SEA16:55Seattle/Tacoma Intl

18 Feb

SEA18:50Seattle/Tacoma Intl

13h 30m

1 stop

CPH17:20Kastrup Copenhagen

£489

Delta flights from Copenhagen to Seattle

Our best Delta deals on Copenhagen to Seattle flight tickets

Delta

16 Feb

CPH14:15Kastrup Copenhagen

30h 25m

1 stop

SEA11:40Seattle/Tacoma Intl

23 Feb

SEA14:15Seattle/Tacoma Intl

17h 45m

1 stop

CPH17:00Kastrup Copenhagen

£399

Delta

16 Feb

CPH14:15Kastrup Copenhagen

30h 25m

1 stop

SEA11:40Seattle/Tacoma Intl

24 Feb

SEA14:00Seattle/Tacoma Intl

18h 00m

2 stops

CPH17:00Kastrup Copenhagen

£401

Delta

18 Mar

CPH14:15Kastrup Copenhagen

30h 20m

1 stop

SEA12:35Seattle/Tacoma Intl

25 Mar

SEA16:05Seattle/Tacoma Intl

18h 15m

1 stop

CPH18:20Kastrup Copenhagen

£402

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 9/5

16:55-20:40

1 stop12h 45m

Seattle/Tacoma Intl

Tue 12/5

19:00-15:55

1 stop11h 55m

£394

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 9/5

16:55-20:40

1 stop12h 45m

Seattle/Tacoma Intl

Tue 12/5

19:00-15:55

1 stop11h 55m

£396

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 9/5

16:55-20:40

1 stop12h 45m

Seattle/Tacoma Intl

Tue 12/5

19:00-15:55

1 stop11h 55m

£398

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 16/2

14:15-11:40

1 stop30h 25m

Seattle/Tacoma Intl

Mon 23/2

14:15-17:00

1 stop17h 45m

£399

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 16/2

14:15-11:40

1 stop30h 25m

Seattle/Tacoma Intl

Tue 24/2

14:00-17:00

2 stops18h 00m

£401

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 16/2

06:00-11:40

1 stop14h 40m

Seattle/Tacoma Intl

Mon 23/2

07:10-11:15

2 stops19h 05m

£404

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Tue 17/2

06:00-14:44

2 stops17h 44m

Seattle/Tacoma Intl

Tue 24/2

14:00-17:00

2 stops18h 00m

£405

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 14/3

06:15-12:30

1 stop14h 15m

Seattle/Tacoma Intl

Sun 7/6

20:20-22:40

1 stop17h 20m

£407

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 15/2

19:25-11:40

1 stop25h 15m

Seattle/Tacoma Intl

Sun 22/2

15:05-16:35

1 stop16h 30m

£415

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 15/2

06:00-20:46

2 stops23h 46m

Seattle/Tacoma Intl

Mon 23/2

06:00-09:00

2 stops18h 00m

£417

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Copenhagen to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Stopovers

What is the typical price of a round-trip flight between Copenhagen and Seattle?

What is the cheapest month to fly to Seattle?

The cheapest month to fly to Seattle from Copenhagen is in February. Flight prices, which tend to average around £388, are often lower during this time because this is during the off-season. The month of November is another great option to travel to Seattle, with average flight prices from Copenhagen averaging around £395.

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Copenhagen when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around £472 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Copenhagen for as low as £432 on momondo.

How have Copenhagen to Seattle flight prices changed over time?

As of February 2026, prices for Copenhagen to Seattle flights are approximately 1% more expensive when compared to flights at the same time last year.

When to book flights from Copenhagen to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Copenhagen to Seattle according to our flight data. Find out which month and days have the cheapest flights.

Estimated return price

Cheap Copenhagen to Seattle (CPH to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Copenhagen to Seattle

Fastest flight time	13h 30m
Direct flights	Mon and Sat
Airports in Seattle	1 airport

The fastest flight from Copenhagen to Seattle takes 13h 30m

Direct flights go from Copenhagen to Seattle on Monday and Saturday. There are no airlines offering direct flights..

There is 1 airport in Seattle. From Copenhagen there are direct flights to Seattle/Tacoma Intl (SEA).

Search flight deals

How far is Kastrup Copenhagen to Seattle/Tacoma Intl by plane?
The straight-line distance from Kastrup Copenhagen to Seattle/Tacoma Intl is 4835.0 mi. By plane, this route typically takes 13h 30m.
When did momondo last update prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?
Prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport were last updated today.
How old do you have to be to fly from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Copenhagen to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Copenhagen to Seattle is Airbus A350-900, representing 97.35% of all bookings. The subsequent popular model is Airbus A330-300 at 2.65%.

Fife

SeaTac

Tukwila

Why use momondo?

Why should I use momondo to find a flight deal from Copenhagen to Seattle?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Copenhagen to Seattle. momondo saves you time and could save you money on your trip.

Can I find flights from Copenhagen to Seattle with flexible booking policies on momondo?

momondo does allow users to show only those flights to Seattle from Copenhagen which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Copenhagen to Seattle?

momondo provides multiple filters to help you find the best flight to Seattle from Copenhagen. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Copenhagen to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Copenhagen and alert you when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

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Cheap flights from Copenhagen to Seattle from £257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Copenhagen to Seattle departing on 19/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names, great deals

Big names, great deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

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Price Alerts

Find the cheapest flights from Copenhagen to Seattle

Cheap return flights

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British Airways flights from Copenhagen to Seattle

Our best British Airways deals on Copenhagen to Seattle flight tickets

Delta flights from Copenhagen to Seattle

Our best Delta deals on Copenhagen to Seattle flight tickets

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

See travel insights to Seattle from

How to get the cheapest flight ticket from Copenhagen to Seattle

What is the typical price of a round-trip flight between Copenhagen and Seattle?

What is the cheapest month to fly to Seattle?

How far in advance should I book a flight to Seattle?

How have Copenhagen to Seattle flight prices changed over time?

As of February 2026, prices for Copenhagen to Seattle flights are approximately 1% more expensive when compared to flights at the same time last year.

What is the cheapest airline that flies from Kastrup Copenhagen to Seattle/Tacoma Intl?

Finnair, Delta, and United Airlines are the most popular carriers operating from Kastrup Copenhagen to Seattle/Tacoma Intl

How often are flights from Copenhagen to Seattle delayed?

Historically, on average around 11% of flights between Copenhagen and Seattle have experienced a delay on any given week. The average delay length over the past 12 months has been 127 minutes.

What is the most punctual flight time for Copenhagen to Seattle flights?

Generally, flights departing in the early afternoon tend to experience fewer delays. Flights departing in the early afternoon have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Monday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on Copenhagen to Seattle flights?

According to our data, Scandinavian Airlines have had the fewest delays on this route over the last 12 months, with about 11% of their flights experiencing any sort of delay.

Which airport is the most popular for stopovers for flights between Copenhagen and Seattle?

Reykjavik (KEF) was the most common stop: 62% of momondo users choosing one-stop flights on this route connected there.

Which stopover airport offers the lowest fares from Copenhagen to Seattle?

Flights via Helsinki (HEL) offer the lowest average return price of £342.

Which stopover airport has the shortest travel time from Copenhagen to Seattle?

Flights connecting via Helsinki (HEL) have the shortest average one-way travel time: 11h 45m.

Which stopover airport has the shortest connection time from Copenhagen to Seattle?

Helsinki (HEL) has the shortest average stopover time for this route: 1h 48m.

When to book flights from Copenhagen to Seattle

Cheap Copenhagen to Seattle (CPH to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Copenhagen to Seattle

Fastest flight time

Direct flights

Airports in Seattle

How far is Kastrup Copenhagen to Seattle/Tacoma Intl by plane?

When did momondo last update prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Copenhagen to Seattle?

Travelling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Copenhagen to Seattle?

Can I find flights from Copenhagen to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Copenhagen to Seattle?

I’m not ready to book a flight from Copenhagen to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington