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

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

What airlines fly to Seattle?

Icelandair, Scandinavian Airlines and United Airlines are the top three most popular airlines that fly to Seattle from Copenhagen according to our data. Icelandair is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

Flights via Helsinki (HEL) offer the lowest average round-trip price of $449.

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

Munich (MUC) has the shortest average layover time for this route: 1h 18m.

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

Reykjavik (KEF) was the most common stop: 74% of momondo users choosing 1-stop flights on this route connected there.

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

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

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 in the early afternoon have, in the past, seen delays more frequently in comparison.

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

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

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

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 13h 10m.

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 refresh daily.

How many operators does momondo search for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

The number of operators available for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport is 6 as of January 2026.

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.

$344 Cheap Flights from Copenhagen to Seattle in 2026

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Find the cheapest flights from Copenhagen to Seattle

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6:55 am - 9:57 pm

CPH

SEA

24h 02m

2 stops

2:25 pm - 11:30 am

SEA

CPH

13h 05m

1 stop

$524British Airways

dom, mar 1 - ter, mar 17

7:50 am - 11:39 pm

CPH

SEA

24h 49m

2 stops

11:16 am - 11:10 pm

SEA

CPH

26h 54m

2 stops

$530American Airlines

sáb, mai 9 - ter, mai 12

7:50 am - 10:26 pm

CPH

SEA

23h 36m

2 stops

8:31 am - 11:10 pm

SEA

CPH

29h 39m

2 stops

$533American Airlines

sáb, mai 9 - ter, mai 12

4:55 pm - 8:40 pm

CPH

SEA

12h 45m

1 stop

7:00 pm - 3:55 pm

SEA

CPH

11h 55m

1 stop

$540Icelandair

sáb, mai 9 - ter, mai 12

4:55 pm - 8:40 pm

CPH

SEA

12h 45m

1 stop

7:00 pm - 3:55 pm

SEA

CPH

11h 55m

1 stop

$544Icelandair

sáb, mai 9 - ter, mai 12

4:55 pm - 8:40 pm

CPH

SEA

12h 45m

1 stop

7:00 pm - 3:55 pm

SEA

CPH

11h 55m

1 stop

$546Icelandair

sáb, mai 9 - ter, mai 12

6:00 am - 6:40 pm

CPH

SEA

20h 40m

2 stops

3:30 pm - 7:55 pm

SEA

CPH

19h 25m

2 stops

$547Delta

seg, mar 23 - seg, mar 30

12:25 pm - 10:55 pm

CPH

SEA

19h 30m

2 stops

8:20 pm - 11:10 pm

SEA

CPH

17h 50m

2 stops

$548Finnair

seg, jun 1 - seg, jun 15

6:00 am - 8:59 pm

CPH

SEA

22h 59m

2 stops

6:40 pm - 6:45 pm

SEA

CPH

15h 05m

1 stop

$552Delta

seg, mar 23 - seg, mar 30

2:15 pm - 11:40 am

CPH

SEA

30h 25m

1 stop

9:45 am - 1:40 pm

SEA

CPH

18h 55m

2 stops

$557Delta

seg, fev 9 - seg, fev 23

Air Canada flights from Copenhagen to Seattle

Our best Air Canada deals on Copenhagen to Seattle flight tickets

Air Canada

Mar 13

CPH6:50 amKastrup Copenhagen

23h 26m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

Mar 20

SEA8:00 amSeattle/Tacoma Intl

21h 45m

2 stops

CPH1:45 pmKastrup Copenhagen

$641

Air Canada

Jun 19

CPH12:15 pmKastrup Copenhagen

19h 07m

2 stops

SEA10:22 pmSeattle/Tacoma Intl

Jul 2

SEA7:30 amSeattle/Tacoma Intl

18h 20m

2 stops

CPH10:50 amKastrup Copenhagen

$648

Air Canada

Feb 8

CPH6:00 amKastrup Copenhagen

36h 15m

2 stops

SEA9:15 amSeattle/Tacoma Intl

Nov 20

SEA5:45 amSeattle/Tacoma Intl

26h 50m

2 stops

CPH5:35 pmKastrup Copenhagen

$747

Lufthansa flights from Copenhagen to Seattle

Our best Lufthansa deals on Copenhagen to Seattle flight tickets

Lufthansa

Mar 13

CPH6:50 amKastrup Copenhagen

14h 20m

1 stop

SEA1:10 pmSeattle/Tacoma Intl

Mar 20

SEA4:10 pmSeattle/Tacoma Intl

17h 25m

1 stop

CPH5:35 pmKastrup Copenhagen

$722

Lufthansa

Feb 4

CPH6:50 amKastrup Copenhagen

20h 24m

2 stops

SEA6:14 pmSeattle/Tacoma Intl

Nov 20

SEA2:00 pmSeattle/Tacoma Intl

13h 00m

1 stop

CPH12:00 pmKastrup Copenhagen

$729

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

dom 3/1

6:55 am-9:57 pm

2 stops24h 02m

Seattle/Tacoma Intl

ter 3/17

2:25 pm-11:30 am

1 stop13h 05m

$524

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

sáb 5/9

7:50 am-11:39 pm

2 stops24h 49m

Seattle/Tacoma Intl

ter 5/12

11:16 am-11:10 pm

2 stops26h 54m

$530

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

sáb 5/9

7:50 am-10:26 pm

2 stops23h 36m

Seattle/Tacoma Intl

ter 5/12

8:31 am-11:10 pm

2 stops29h 39m

$533

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

sáb 5/9

4:55 pm-8:40 pm

1 stop12h 45m

Seattle/Tacoma Intl

ter 5/12

7:00 pm-3:55 pm

1 stop11h 55m

$540

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

sáb 5/9

4:55 pm-8:40 pm

1 stop12h 45m

Seattle/Tacoma Intl

ter 5/12

7:00 pm-3:55 pm

1 stop11h 55m

$544

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

sáb 5/9

4:55 pm-8:40 pm

1 stop12h 45m

Seattle/Tacoma Intl

ter 5/12

7:00 pm-3:55 pm

1 stop11h 55m

$546

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

seg 3/23

6:00 am-6:40 pm

2 stops20h 40m

Seattle/Tacoma Intl

seg 3/30

3:30 pm-7:55 pm

2 stops19h 25m

$547

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

seg 6/1

12:25 pm-10:55 pm

2 stops19h 30m

Seattle/Tacoma Intl

seg 6/15

8:20 pm-11:10 pm

2 stops17h 50m

$548

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

seg 3/23

6:00 am-8:59 pm

2 stops22h 59m

Seattle/Tacoma Intl

seg 3/30

6:40 pm-6:45 pm

1 stop15h 05m

$552

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

seg 2/9

2:15 pm-11:40 am

1 stop30h 25m

Seattle/Tacoma Intl

seg 2/23

9:45 am-1:40 pm

2 stops18h 55m

$557

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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

Layovers

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Copenhagen to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $527. If you don’t want to visit Seattle in February, then you should wait until November to fly from Copenhagen, when ticket prices are also cheap, with an average price of $541.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Copenhagen is on a Saturday. momondo users have found tickets for Saturday departures for as low as $649. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Copenhagen because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,296.

What is the cheapest Kastrup Copenhagen to Seattle/Tacoma Intl flight route?

Fly from Kastrup Copenhagen to Seattle/Tacoma Intl for the best Kastrup Copenhagen - Seattle/Tacoma Intl flight prices

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 $646 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Copenhagen for as low as $592 on momondo.

What cabin class options are available on Kastrup Copenhagen to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Kastrup Copenhagen to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Copenhagen to Seattle flights?

You could potentially save up to 48% on your flight if you consider stops on a Copenhagen to Seattle flight.

How have Copenhagen to Seattle flight prices changed over time?

As of January 2026, prices for Copenhagen to Seattle flights are approximately 14% 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 round-trip 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	9h 40m
Direct flights	Mon, Wed, Sat and Sun
Airports in Seattle	1 airport

The fastest flight from Copenhagen to Seattle takes 9h 40m

Direct flights go from Copenhagen to Seattle on Monday, Wednesday, Saturday and Sunday. 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. Flights usually cover this in 9h 40m, depending on flying conditions and air traffic around both airports.
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 refresh daily.
How many operators does momondo search for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport is 6 as of January 2026.
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?
Based on momondo bookings for flights between Copenhagen and Seattle, the leading plane model is Airbus A350-900, making up 97.29% of the total bookings. Other popular models include Airbus A330-300 with 2.71%.
What is the most popular airline from Copenhagen to Seattle?
Based on momondo bookings for flights between Copenhagen and Seattle, the leading airline is Icelandair, making up 29% of the total bookings. Other popular airlines include Scandinavian Airlines with 26%, United Airlines with 16%, and American Airlines with 10%.

Best airlines flying from Copenhagen to Seattle

Compare and see reviews for airlines that fly from Copenhagen to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Lufthansa	PriceFrom $317	Free Cancellation	Rating 6.8 7,756 reviews	Search Lufthansa flights
Icelandair	PriceFrom $430	Free Cancellation	Rating 7.1 606 reviews	Search Icelandair flights
American Airlines	PriceFrom $462	Free Cancellation	Rating 7.2 11,206 reviews	Search American Airlines flights
British Airways	PriceFrom $463	Free Cancellation	Rating 6.7 7,705 reviews	Search British Airways flights
United Airlines	PriceFrom $567	Free Cancellation	Rating 7.4 9,215 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $600	Free Cancellation	Rating 7.3 1,674 reviews	Search Scandinavian Airlines flights

Tacoma

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Renton

Olympia

Lynnwood

Kent

Marysville

Puyallup

Redmond

Cle Elum

Tukwila

Lakewood

Federal Way

Centralia

Westport

Kirkland

Fife

Tumwater

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Copenhagen.

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

Flights from Copenhagen to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once all potential Copenhagen to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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, organize 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 $344

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 6/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Air Canada flights from Copenhagen to Seattle

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See travel insights to Seattle from

How to get the cheapest flight ticket from Copenhagen to Seattle

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest Kastrup Copenhagen to Seattle/Tacoma Intl flight route?

Fly from Kastrup Copenhagen to Seattle/Tacoma Intl for the best Kastrup Copenhagen - Seattle/Tacoma Intl flight prices

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

What cabin class options are available on Kastrup Copenhagen to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Kastrup Copenhagen to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Copenhagen to Seattle flights?

You could potentially save up to 48% on your flight if you consider stops on a Copenhagen to Seattle flight.

How have Copenhagen to Seattle flight prices changed over time?

As of January 2026, prices for Copenhagen to Seattle flights are approximately 14% 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 and American Airlines are the most popular carriers operating from Kastrup Copenhagen to Seattle/Tacoma Intl

What airlines fly to Seattle?

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 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 which experiences the fewest number of 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 least number of 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 layover for flights between Copenhagen and Seattle?

Reykjavik (KEF) was the most common stop: 74% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Helsinki (HEL) offer the lowest average round-trip price of $449.

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

Flights connecting via Amsterdam (AMS) have the shortest average one-way travel time: 13h 10m.

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

Munich (MUC) has the shortest average layover time for this route: 1h 18m.

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 many operators does momondo search 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?

What is the most popular airline from Copenhagen to Seattle?

Best airlines flying from Copenhagen to Seattle

Compare and see reviews for airlines that fly from Copenhagen to Seattle with momondo

Traveling 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, organize 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