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

Reykjavik (KEF) was the most common stop: 55% of momondo users choosing 1-stop flights on this route connected there.

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

London (LHR) has the shortest average layover time for this route: 1h 40m.

How many flights depart from Seattle to Copenhagen on average per week?

As of May 2026, 12 flights take off from Seattle and land in Copenhagen each week. The most common flight departure day for this route is Tue, with 25% of weekly flights taking off on this day.

What airlines fly to Copenhagen?

Scandinavian Airlines, Icelandair and Delta are the top three most popular airlines that fly to Copenhagen from Seattle according to our data. Scandinavian Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Copenhagen. Keep in mind that there are 10 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

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

Flights via New York (JFK) offer the lowest average round-trip price of $605.

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

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 12h 40m.

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

Icelandair is the most popular carrier operating from Seattle/Tacoma Intl to Kastrup Copenhagen

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

Prices for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport refresh daily.

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

There are 10 operators available for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport as of May 2026.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport.

What documentation or ID do you need to fly to Kastrup Copenhagen Airport?

The necessary travel and health documents for your Kastrup Copenhagen Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$184 Cheap Flights from Seattle to Copenhagen in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $802 to $618. The lowest price recently found on this route was $489.

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Seattle to Copenhagen

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 10:35 am

SEA

CPH

17h 35m

1 stop

12:15 pm - 9:36 am

CPH

SEA

30h 21m

2 stops

$489United Airlines

Sun, Aug 16 - Sat, Aug 22

8:40 am - 5:35 pm

SEA

CPH

23h 55m

2 stops

6:55 am - 12:10 pm

CPH

SEA

14h 15m

1 stop

$494Multiple Airlines

Fri, Nov 6 - Sat, Nov 14

3:15 pm - 11:05 pm

SEA

CPH

46h 50m

2 stops

11:35 am - 6:22 pm

CPH

SEA

39h 47m

2 stops

$499Multiple Airlines

Sat, Nov 7 - Sun, Nov 15

8:00 am - 10:35 am

SEA

CPH

17h 35m

1 stop

6:00 am - 4:59 pm

CPH

SEA

19h 59m

1 stop

$500United Airlines

Sun, Aug 16 - Sun, Aug 23

2:35 pm - 11:45 am

SEA

CPH

12h 10m

1 stop

8:15 am - 5:00 pm

CPH

SEA

17h 45m

1 stop

$501Icelandair

Mon, Nov 16 - Thu, Nov 26

3:00 pm - 8:55 am

SEA

CPH

32h 55m

2 stops

7:25 pm - 4:59 pm

CPH

SEA

30h 34m

1 stop

$511Lufthansa

Sat, Aug 15 - Sat, Aug 22

8:00 am - 11:25 am

SEA

CPH

18h 25m

2 stops

11:35 am - 11:21 pm

CPH

SEA

20h 46m

2 stops

$517United Airlines

Wed, Nov 4 - Wed, Nov 11

10:10 am - 12:00 pm

SEA

CPH

16h 50m

2 stops

11:35 am - 9:17 am

CPH

SEA

30h 42m

2 stops

$521Air Canada

Wed, Nov 4 - Wed, Nov 11

3:10 pm - 5:35 pm

SEA

CPH

17h 25m

1 stop

6:55 am - 12:10 pm

CPH

SEA

14h 15m

1 stop

$523Lufthansa

Fri, Nov 6 - Sat, Nov 14

8:00 am - 10:50 am

SEA

CPH

17h 50m

1 stop

2:40 pm - 11:55 am

CPH

SEA

30h 15m

1 stop

$528United Airlines

Thu, Aug 13 - Tue, Aug 18

SWISS flights from Seattle to Copenhagen

Our best SWISS deals on Seattle to Copenhagen flight tickets

SWISS

Oct 7

SEA7:00 amSeattle/Tacoma Intl

16h 55m

2 stops

CPH8:55 amKastrup Copenhagen

Oct 14

CPH6:30 amKastrup Copenhagen

21h 02m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

$592

SWISS

May 31

SEA10:45 amSeattle/Tacoma Intl

22h 05m

2 stops

CPH5:50 pmKastrup Copenhagen

Jun 13

CPH6:30 amKastrup Copenhagen

21h 00m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

$694

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets

Icelandair

Nov 16

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

Nov 26

CPH8:15 amKastrup Copenhagen

17h 45m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$501

Icelandair

Aug 14

SEA11:25 pmSeattle/Tacoma Intl

21h 55m

1 stop

CPH6:20 amKastrup Copenhagen

Dec 10

CPH5:05 pmKastrup Copenhagen

32h 55m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$546

Icelandair

Nov 16

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

Dec 2

CPH12:55 pmKastrup Copenhagen

13h 05m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$564

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 8/16

8:00 am-10:35 am

1 stop17h 35m

Kastrup Copenhagen

Sat 8/22

12:15 pm-9:36 am

2 stops30h 21m

$489

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 11/6

8:40 am-5:35 pm

2 stops23h 55m

Kastrup Copenhagen

Sat 11/14

6:55 am-12:10 pm

1 stop14h 15m

$494

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 11/7

3:15 pm-11:05 pm

2 stops46h 50m

Kastrup Copenhagen

Sun 11/15

11:35 am-6:22 pm

2 stops39h 47m

$499

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 8/16

8:00 am-10:35 am

1 stop17h 35m

Kastrup Copenhagen

Sun 8/23

6:00 am-4:59 pm

1 stop19h 59m

$500

Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 11/16

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Thu 11/26

8:15 am-5:00 pm

1 stop17h 45m

$501

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 8/15

3:00 pm-8:55 am

2 stops32h 55m

Kastrup Copenhagen

Sat 8/22

7:25 pm-4:59 pm

1 stop30h 34m

$511

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 11/4

8:00 am-11:25 am

2 stops18h 25m

Kastrup Copenhagen

Wed 11/11

11:35 am-11:21 pm

2 stops20h 46m

$517

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 11/4

10:10 am-12:00 pm

2 stops16h 50m

Kastrup Copenhagen

Wed 11/11

11:35 am-9:17 am

2 stops30h 42m

$521

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 11/6

3:10 pm-5:35 pm

1 stop17h 25m

Kastrup Copenhagen

Sat 11/14

6:55 am-12:10 pm

1 stop14h 15m

$523

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 8/13

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Tue 8/18

2:40 pm-11:55 am

1 stop30h 15m

$528

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Seattle to Copenhagen

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

Layovers

Other information

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

What is the cheapest month to fly to Copenhagen?

The cheapest month to fly to Copenhagen from Seattle is in February. Flight prices, which tend to average around $447, are often lower during this time because this is during the off-season. If you aren’t able to travel to Copenhagen during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $514.

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

The cheapest day to depart from Seattle to Copenhagen is on a Monday when prices can be found for as low as $650. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Copenhagen for around $758.

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

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

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

You are more likely to see cheaper flights to Copenhagen from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Copenhagen for around $604 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Copenhagen from Seattle for as low as $559 on momondo.

What cabin class options are available on Seattle to Copenhagen flights?

There are 3 cabin classes available to choose from on Seattle to Copenhagen 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 Seattle to Copenhagen flights?

You could potentially save up to 53% on your flight if you consider stops on a Seattle to Copenhagen flight.

How have Seattle to Copenhagen flight prices changed over time?

As of May 2026, prices for Seattle to Copenhagen flights are approximately 63% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Copenhagen

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

Estimated round-trip price

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

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

Best Price Found	$579
Fastest flight time	9h 15m
Direct flights	Mon, Wed, Sat and Sun
Airports in Copenhagen	1 airport

The best one-way flight to Copenhagen from Seattle in the past 72 hours is $579. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $756.

The fastest flight from Seattle to Copenhagen takes 9h 15m

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

There is 1 airport in Copenhagen. From Seattle there are direct flights to Kastrup Copenhagen (CPH).

Search flight deals

Frequently asked questions about flying from Seattle to Copenhagen

How far is Seattle/Tacoma Intl to Kastrup Copenhagen by plane?
Kastrup Copenhagen is 4835.0 mi away from Seattle/Tacoma Intl. A reasonable flight in good conditions will take 9h 15m.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport refresh daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport?
There are 10 operators available for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport as of May 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport.
What documentation or ID do you need to fly to Kastrup Copenhagen Airport?
The necessary travel and health documents for your Kastrup Copenhagen Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Copenhagen?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Copenhagen is Airbus A350-900, representing 48.19% of all bookings. The subsequent popular models are Airbus A330-900neo at 16.40%, Boeing 787-10 Dreamliner at 9.27%, and Boeing 777-300ER at 7.97%.
What is the most popular airline from Seattle to Copenhagen?
Based on momondo bookings for flights between Seattle and Copenhagen, the leading airline is Scandinavian Airlines, making up 42% of the total bookings. Other popular airlines include Icelandair with 34%, Delta with 8%, and Lufthansa with 4%.

Best airlines flying from Seattle to Copenhagen

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

Airline	Rating	Free Cancellation	Price
SWISS	PriceFrom $371	Free Cancellation	Rating 7.5 1,956 reviews	Search SWISS flights
Icelandair	PriceFrom $419	Free Cancellation	Rating 7.0 657 reviews	Search Icelandair flights
Air France	PriceFrom $469	Free Cancellation	Rating 7.4 1,590 reviews	Search Air France flights
Scandinavian Airlines	PriceFrom $503	Free Cancellation	Rating 7.4 1,784 reviews	Search Scandinavian Airlines flights
Delta	PriceFrom $506	Free Cancellation	Rating 7.9 8,445 reviews	Search Delta flights
British Airways	PriceFrom $506	Free Cancellation	Rating 6.7 7,995 reviews	Search British Airways flights
Lufthansa	PriceFrom $509	Free Cancellation	Rating 6.8 8,019 reviews	Search Lufthansa flights
Air Canada	PriceFrom $515	Free Cancellation	Rating 7.1 11,076 reviews	Search Air Canada flights
KLM	PriceFrom $528	Free Cancellation	Rating 7.8 1,519 reviews	Search KLM flights
United Airlines	PriceFrom $535	Free Cancellation	Rating 7.4 9,752 reviews	Search United Airlines flights

Kastrup

Roskilde

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Copenhagen for you.

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

All flight searches from Seattle to Copenhagen on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Copenhagen from Seattle.

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

Yes momondo offers price alerts on flights to Copenhagen from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Copenhagen 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Sun 6/21

Sun 6/28

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Denmark

Nearby airports

Airlines

Cabin classes

Other Denmark destinations

Other flights from Seattle

Complete your trip

Feeling lucky

Airports servicing Denmark

Cheap flights from Seattle to Copenhagen from $184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Copenhagen departing on 11/13. 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 and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Seattle to Copenhagen

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

SWISS flights from Seattle to Copenhagen

Our best SWISS deals on Seattle to Copenhagen flight tickets

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets

momondo Fare Finder

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

See travel insights to Copenhagen from

How to get the cheapest flight ticket from Seattle to Copenhagen

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

What is the cheapest month to fly to Copenhagen?

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

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

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

What cabin class options are available on Seattle to Copenhagen flights?

Can stopping save me money on Seattle to Copenhagen flights?

How have Seattle to Copenhagen flight prices changed over time?

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

What airlines fly to Copenhagen?

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

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

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

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

How many flights depart from Seattle to Copenhagen on average per week?

When to book flights from Seattle to Copenhagen

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

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

Best Price Found

Fastest flight time

Direct flights

Airports in Copenhagen

Frequently asked questions about flying from Seattle to Copenhagen

Best airlines flying from Seattle to Copenhagen

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

Traveling to a place near Copenhagen?

Why use momondo?

An easier way to manage your Copenhagen 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 Denmark

Airports servicing Denmark

Fly your favorite airline to Copenhagen

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Copenhagen

List of cabin classes available on flights landing in Copenhagen. Availability may vary depending on flight origin and airline.

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Seattle

According to popular flight searches on momondo this year

Complete your trip to Copenhagen

Explore popular destinations other users love

According to popular flight searches on momondo this year