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

Icelandair, TAP AIR PORTUGAL, and British Airways are the most popular carriers operating from Seattle/Tacoma Intl to Kastrup Copenhagen

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

As of July 2025, 10 flights take off from Seattle and land in Copenhagen each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

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

1 flights are operational daily from Seattle to Copenhagen as of July 2025. The most popular departure time for this route is 4:00PM, with 100% of flights per day taking off in the afternoon.

What airlines fly to Copenhagen?

Icelandair, Scandinavian Airlines and British Airways are the top three most popular airlines that fly to Copenhagen from Seattle according to our data. Icelandair is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Copenhagen. Keep in mind that there are 11 different airlines that fly to Copenhagen on a routine basis, so you have a few additional options to choose from.

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 11 operators available for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport as of July 2025.

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.

$178 Cheap Flights from Seattle to Copenhagen in 2025

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

2:35 pm - 11:45 amSEA-CPH

12h 10m1 stop

6:25 am - 5:00 pmCPH-SEA

19h 35m1 stop

$423Icelandair

Find Deal

Thu, Nov 13 - Sun, Nov 23

7:00 pm - 3:45 pmSEA-CPH

11h 45m1 stop

4:45 pm - 8:40 pmCPH-SEA

12h 55m1 stop

$432Icelandair

Find Deal

Mon, Aug 25 - Wed, Sep 10

11:30 pm - 6:20 amSEA-CPH

21h 50m1 stop

10:35 pm - 11:25 amCPH-SEA

21h 50m1 stop

$436Icelandair

Find Deal

Fri, Aug 15 - Sun, Aug 24

9:45 pm - 6:30 amSEA-CPH

23h 45m1 stop

9:00 am - 8:14 pmCPH-SEA

20h 14m1 stop

$448Delta

Find Deal

Fri, Aug 8 - Thu, Aug 21

9:45 pm - 6:30 amSEA-CPH

23h 45m1 stop

9:00 am - 10:25 pmCPH-SEA

22h 25m2 stops

$453Delta

Find Deal

Fri, Aug 8 - Thu, Aug 21

2:55 pm - 7:10 amSEA-CPH

31h 15m2 stops

12:45 pm - 10:16 pmCPH-SEA

18h 31m2 stops

$456Air Canada

Find Deal

Mon, Aug 25 - Wed, Sep 10

10:00 am - 7:10 amSEA-CPH

36h 10m2 stops

12:45 pm - 10:16 pmCPH-SEA

18h 31m2 stops

$458Air Canada

Find Deal

Mon, Aug 25 - Wed, Sep 10

4:00 pm - 10:30 amSEA-CPH

9h 30mnonstop

1:05 pm - 1:50 pmCPH-SEA

9h 45mnonstop

$483Scandinavian Airlines

Find Deal

Mon, Aug 11 - Mon, Aug 18

4:00 pm - 10:30 amSEA-CPH

9h 30mnonstop

1:05 pm - 2:00 pmCPH-SEA

9h 55mnonstop

$486Scandinavian Airlines

Find Deal

Wed, Sep 10 - Wed, Sep 24

12:00 pm - 10:50 amSEA-CPH

13h 50m1 stop

12:25 pm - 6:30 pmCPH-SEA

39h 05m2 stops

$495United Airlines

Find Deal

Wed, Sep 3 - Fri, Sep 12

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets

Icelandair

Nov 13

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

Nov 23

CPH6:25 amKastrup Copenhagen

19h 35m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$423

Find similar

Icelandair

Aug 25

SEA7:00 pmSeattle/Tacoma Intl

11h 45m

1 stop

CPH3:45 pmKastrup Copenhagen

Sep 10

CPH4:45 pmKastrup Copenhagen

12h 55m

1 stop

SEA8:40 pmSeattle/Tacoma Intl

$432

Find similar

Icelandair

Aug 15

SEA11:30 pmSeattle/Tacoma Intl

21h 50m

1 stop

CPH6:20 amKastrup Copenhagen

Aug 24

CPH10:35 pmKastrup Copenhagen

21h 50m

1 stop

SEA11:25 amSeattle/Tacoma Intl

$436

Find similar

Air Canada flights from Seattle to Copenhagen

Our best Air Canada deals on Seattle to Copenhagen flight tickets

Air Canada

Aug 25

SEA2:55 pmSeattle/Tacoma Intl

31h 15m

2 stops

CPH7:10 amKastrup Copenhagen

Sep 10

CPH12:45 pmKastrup Copenhagen

18h 31m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$456

Find similar

Air Canada

Aug 25

SEA10:00 amSeattle/Tacoma Intl

36h 10m

2 stops

CPH7:10 amKastrup Copenhagen

Sep 10

CPH12:45 pmKastrup Copenhagen

18h 31m

2 stops

SEA10:16 pmSeattle/Tacoma Intl

$458

Find similar

Air Canada

Aug 25

SEA10:00 amSeattle/Tacoma Intl

36h 10m

2 stops

CPH7:10 amKastrup Copenhagen

Sep 10

CPH12:45 pmKastrup Copenhagen

15h 46m

1 stop

SEA7:31 pmSeattle/Tacoma Intl

$464

Find similar

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

Other information

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 $570, 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 November is also cheap. Prices for this month can be found on momondo for an average of $576.

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 $669. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Copenhagen for around $774.

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

Flying to Copenhagen from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $632 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $782. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 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 $640 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 $579 on momondo.

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

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

How have Seattle to Copenhagen flight prices changed over time?

As of July 2025, prices for Seattle to Copenhagen flights are approximately 65% 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	$178
Fastest flight time	9h 30m
Direct flights	Mon, Tue, Thu, Sat and Sun
Airports in Copenhagen	1 airport

The best one-way flight to Copenhagen from Seattle in the past 72 hours is $178. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $423.

The fastest flight from Seattle to Copenhagen takes 9h 30m

Direct flights go from Seattle to Copenhagen on Monday, Tuesday, Thursday, Saturday and Sunday. Airlines offering direct flights are: Delta and Scandinavian Airlines.

There is 1 airport near Copenhagen: Kastrup Copenhagen (CPH)

Search flight deals

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 30m.
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 11 operators available for flights from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport as of July 2025.
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 41.51% of all bookings. The subsequent popular models are Airbus A330-900neo at 22.38%, Boeing 787-10 Dreamliner at 11.91%, and Boeing 777 at 7.35%.
What is the most popular airline from Seattle to Copenhagen?
Based on momondo bookings for flights between Seattle and Copenhagen, the leading airline is Icelandair, making up 41% of the total bookings. Other popular airlines include Scandinavian Airlines with 31%, British Airways with 7%, and Delta with 6%.

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
Icelandair	PriceFrom $414	Free Cancellation	Rating 7.0 515 reviews	Search Icelandair flights
Air France	PriceFrom $418	Free Cancellation	Rating 7.5 1,468 reviews	Search Air France flights
Finnair	PriceFrom $476	Free Cancellation	Rating 7.6 1,316 reviews	Search Finnair flights
American Airlines	PriceFrom $486	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $493	Free Cancellation	Rating 6.6 7,123 reviews	Search British Airways flights
United Airlines	PriceFrom $520	Free Cancellation	Rating 7.4 8,850 reviews	Search United Airlines flights
Scandinavian Airlines	PriceFrom $521	Free Cancellation	Rating 7.3 1,421 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $532	Free Cancellation	Rating 7.1 9,706 reviews	Search Air Canada flights
Lufthansa	PriceFrom $553	Free Cancellation	Rating 6.8 7,195 reviews	Search Lufthansa flights
KLM	PriceFrom $572	Free Cancellation	Rating 7.8 1,372 reviews	Search KLM flights

Delta Flights From Seattle to Copenhagen
Delta operates around 5 flights from Seattle to Copenhagen every week. The average price of these flights found in the last 72 hours has been $847, but momondo users have found Delta deals from Seattle to Copenhagen from as low as $586 round-trip. Delta has been scored 8.0/10 in 7,950 reviews.
Scandinavian Airlines Flights From Seattle to Copenhagen
Another popular option for Seattle to Copenhagen flights is Scandinavian Airlines (7.3/10, 1,421 ratings). Scandinavian Airlines flies from Seattle to Copenhagen around 5 times per week, with deals starting from $521 round-trip and rising to an average price of around $739.

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

Thu 7/17

Thu 7/24

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

Airports servicing Denmark

Fly to other destinations from Seattle

Flights from Seattle/Tacoma Intl to Phoenix Sky Harbor Intl

Flights from Seattle/Tacoma Intl to Eugene

Flights from Seattle/Tacoma Intl to Las Vegas Harry Reid Intl

Flights from Seattle/Tacoma Intl to Pasco Tri Cities

Flights from Seattle/Tacoma Intl to San Jose

Flights from Seattle/Tacoma Intl to Salt Lake City

Cheap flights from Seattle to Copenhagen from $178

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 9/2. 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

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets

Air Canada flights from Seattle to Copenhagen

Our best Air Canada deals on Seattle to Copenhagen flight tickets

See travel insights to Copenhagen from

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

What is the cheapest month to fly to Copenhagen?

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 $669. When flying out on a Friday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Copenhagen for around $774.

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

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 to Copenhagen?

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

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

How have Seattle to Copenhagen flight prices changed over time?

As of July 2025, prices for Seattle to Copenhagen flights are approximately 65% cheaper when compared to flights at the same time last year.

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

Icelandair, TAP AIR PORTUGAL, and British Airways are the most popular carriers operating from Seattle/Tacoma Intl to Kastrup Copenhagen

What airlines fly to Copenhagen?

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

1 flights are operational daily from Seattle to Copenhagen as of July 2025. The most popular departure time for this route is 4:00PM, with 100% of flights per day taking off in the afternoon.

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

As of July 2025, 10 flights take off from Seattle and land in Copenhagen each week. The most common flight departure day for this route is Mon, with 20% of weekly flights taking off on this day.

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

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

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

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

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

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

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

What is the most popular airline 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

Delta Flights From Seattle to Copenhagen

Scandinavian Airlines Flights From Seattle to Copenhagen

Traveling to a place near Copenhagen?

Why use momondo?

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

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

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

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

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