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

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

What airlines fly to Seattle?

Icelandair, Scandinavian Airlines and British Airways 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 30% 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 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 airline has the best punctuality record on Copenhagen to Seattle flights?

According to our data, Delta have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

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

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

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.

How often are flights from Copenhagen to Seattle delayed?

Historically, on average around 10% 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 158 minutes.

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

American Airlines, British Airways, and Icelandair are the most popular carriers operating from Kastrup Copenhagen to Seattle/Tacoma Intl

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

Reykjavik (KEF) was the most common stop: 60% of momondo users choosing 1-stop flights on this route connected there.

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. Wednesday has historically seen more delays on average compared to the rest of the week.

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 November 2025.

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.

$342 Cheap Flights from Copenhagen to Seattle in 2025/26

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6:00 am - 11:45 amCPH-SEA

14h 45m1 stop

3:05 pm - 1:40 pmSEA-CPH

13h 35m1 stop

$501KLM

Find Deal

Thu, Nov 20 - Wed, Dec 3

12:55 pm - 5:00 pmCPH-SEA

13h 05m1 stop

2:35 pm - 11:45 amSEA-CPH

12h 10m1 stop

$512Icelandair

Find Deal

Mon, Jan 12 - Mon, Jan 19

7:05 am - 12:10 pmCPH-SEA

14h 05m1 stop

1:40 pm - 6:05 pmSEA-CPH

19h 25m2 stops

$523Lufthansa

Find Deal

Thu, Nov 20 - Wed, Dec 3

7:05 am - 6:52 pmCPH-SEA

20h 47m2 stops

1:40 pm - 6:05 pmSEA-CPH

19h 25m2 stops

$532Lufthansa

Find Deal

Thu, Nov 20 - Wed, Dec 3

2:05 pm - 10:07 pmCPH-SEA

41h 02m2 stops

12:45 pm - 5:20 pmSEA-CPH

19h 35m2 stops

$555American Airlines

Find Deal

Wed, Jan 7 - Wed, Jan 14

11:50 am - 5:45 pmCPH-SEA

38h 55m2 stops

12:45 pm - 4:55 pmSEA-CPH

19h 10m2 stops

$558American Airlines

Find Deal

Sun, Jan 11 - Tue, Jan 20

6:55 am - 9:00 pmCPH-SEA

23h 05m3 stops

6:00 am - 1:35 pmSEA-CPH

22h 35m2 stops

$591United Airlines

Find Deal

Mon, Dec 15 - Wed, Dec 31

10:05 am - 11:15 pmCPH-SEA

22h 10m3 stops

2:10 pm - 5:35 pmSEA-CPH

18h 25m2 stops

$592United Airlines

Find Deal

Wed, Dec 10 - Wed, Jan 7

8:25 pm - 11:30 amCPH-SEA

24h 05m1 stop

6:50 pm - 9:45 pmSEA-CPH

17h 55m1 stop

$627British Airways

Find Deal

Mon, Nov 17 - Tue, Dec 2

11:00 am - 11:18 pmCPH-SEA

21h 18m2 stops

1:25 pm - 7:00 pmSEA-CPH

20h 35m1 stop

$628British Airways

Find Deal

Mon, Nov 17 - Tue, Dec 2

Icelandair flights from Copenhagen to Seattle

Our best Icelandair deals on Copenhagen to Seattle flight tickets

Icelandair

Jan 12

CPH12:55 pmKastrup Copenhagen

13h 05m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Jan 19

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

$512

Find similar

Icelandair

Jan 11

CPH8:50 pmKastrup Copenhagen

29h 10m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Jan 19

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

$513

Find similar

Icelandair

Dec 4

CPH12:55 pmKastrup Copenhagen

13h 05m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

Jan 7

SEA2:35 pmSeattle/Tacoma Intl

20h 15m

1 stop

CPH7:50 pmKastrup Copenhagen

$579

Find similar

American Airlines flights from Copenhagen to Seattle

Our best American Airlines deals on Copenhagen to Seattle flight tickets

American Airlines

Jan 7

CPH2:05 pmKastrup Copenhagen

41h 02m

2 stops

SEA10:07 pmSeattle/Tacoma Intl

Jan 14

SEA12:45 pmSeattle/Tacoma Intl

19h 35m

2 stops

CPH5:20 pmKastrup Copenhagen

$555

Find similar

American Airlines

Jan 11

CPH11:50 amKastrup Copenhagen

38h 55m

2 stops

SEA5:45 pmSeattle/Tacoma Intl

Jan 20

SEA12:45 pmSeattle/Tacoma Intl

19h 10m

2 stops

CPH4:55 pmKastrup Copenhagen

$558

Find similar

American Airlines

Jan 11

CPH6:55 amKastrup Copenhagen

21h 09m

2 stops

SEA7:04 pmSeattle/Tacoma Intl

Jan 17

SEA8:35 amSeattle/Tacoma Intl

18h 10m

2 stops

CPH11:45 amKastrup Copenhagen

$574

Find similar

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/20

6:00 am-11:45 am

1 stop14h 45m

Seattle/Tacoma Intl

Wed 12/3

3:05 pm-1:40 pm

1 stop13h 35m

$501

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 1/12

12:55 pm-5:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Mon 1/19

2:35 pm-11:45 am

1 stop12h 10m

$512

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/20

7:05 am-12:10 pm

1 stop14h 05m

Seattle/Tacoma Intl

Wed 12/3

1:40 pm-6:05 pm

2 stops19h 25m

$523

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 11/20

7:05 am-6:52 pm

2 stops20h 47m

Seattle/Tacoma Intl

Wed 12/3

1:40 pm-6:05 pm

2 stops19h 25m

$532

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 1/7

2:05 pm-10:07 pm

2 stops41h 02m

Seattle/Tacoma Intl

Wed 1/14

12:45 pm-5:20 pm

2 stops19h 35m

$555

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 1/11

11:50 am-5:45 pm

2 stops38h 55m

Seattle/Tacoma Intl

Tue 1/20

12:45 pm-4:55 pm

2 stops19h 10m

$558

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 12/15

6:55 am-9:00 pm

3 stops23h 05m

Seattle/Tacoma Intl

Wed 12/31

6:00 am-1:35 pm

2 stops22h 35m

$591

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 12/10

10:05 am-11:15 pm

3 stops22h 10m

Seattle/Tacoma Intl

Wed 1/7

2:10 pm-5:35 pm

2 stops18h 25m

$592

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 11/17

8:25 pm-11:30 am

1 stop24h 05m

Seattle/Tacoma Intl

Tue 12/2

6:50 pm-9:45 pm

1 stop17h 55m

$627

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 11/17

11:00 am-11:18 pm

2 stops21h 18m

Seattle/Tacoma Intl

Tue 12/2

1:25 pm-7:00 pm

1 stop20h 35m

$628

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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 $461. If you don’t want to visit Seattle in February, then you should wait until January to fly from Copenhagen, when ticket prices are also cheap, with an average price of $497.

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 $1,153.

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

Flying to Seattle from Copenhagen in the evening is the least expensive time of day to depart. momondo users have found prices as low as $563 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $938. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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 $626 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 $581 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 43% 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 November 2025, prices for Copenhagen to Seattle flights are approximately 10% 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

Direct flights	None

There are no direct flights from Copenhagen to Seattle. There are no popular flight routes from Copenhagen to Seattle.

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 13h 05m, 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 November 2025.
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 59.46% of the total bookings. Other popular models include Airbus A330-300 with 40.54%.
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 24% of the total bookings. Other popular airlines include Scandinavian Airlines with 23%, British Airways with 16%, and Lufthansa with 15%.

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
Icelandair	PriceFrom $432	Free Cancellation	Rating 7.1 572 reviews	Search Icelandair flights
American Airlines	PriceFrom $462	Free Cancellation	Rating 7.2 11,040 reviews	Search American Airlines flights
British Airways	PriceFrom $463	Free Cancellation	Rating 6.7 7,500 reviews	Search British Airways flights
Lufthansa	PriceFrom $479	Free Cancellation	Rating 6.8 7,558 reviews	Search Lufthansa flights
United Airlines	PriceFrom $533	Free Cancellation	Rating 7.4 9,007 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $600	Free Cancellation	Rating 7.4 1,564 reviews	Search Scandinavian Airlines flights

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Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Lakewood

Federal Way

Fife

Cle Elum

Centralia

Kirkland

Westport

Shoreline

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 $342

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 1/11. 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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Big names and deals

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Find the cheapest flights from Copenhagen to Seattle

Cheap round-trip flights

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Icelandair flights from Copenhagen to Seattle

Our best Icelandair deals on Copenhagen to Seattle flight tickets

American Airlines flights from Copenhagen to Seattle

Our best American Airlines deals on Copenhagen to Seattle flight tickets

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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

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 time of 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 43% 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 November 2025, prices for Copenhagen to Seattle flights are approximately 10% 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?

American Airlines, British Airways, and Icelandair 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 10% 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 158 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. Wednesday 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, Delta have had the least number of delays on this route over the last 12 months; with about 9% 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: 60% 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?

Amsterdam (AMS) has the shortest average layover time for this route: 1h 25m.

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

Direct flights

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