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Cheap flights from Seattle to Copenhagen from $180

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 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Seattle to Copenhagen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:10 am - 10:20 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
39h 10m2 stops Vancouver Intl Toronto Pearson Intl
Multiple Airlines Logo
11:35 am - 8:59 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
18h 24m1 stop Toronto Pearson Intl
$484Multiple Airlines
Wed, Jan 27 - Sun, Feb 7
Delta Logo
1:30 pm - 6:45 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
20h 15m1 stop Paris Charles de Gaulle
Delta Logo
9:00 am - 8:09 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 09m1 stop New York John F Kennedy Intl
$491Delta
Fri, Oct 9 - Tue, Oct 13
Scandinavian Airlines Logo
3:55 pm - 10:10 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
9h 15mnonstop
Scandinavian Airlines Logo
1:05 pm - 1:45 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
9h 40mnonstop
$491Scandinavian Airlines
Sun, Sep 27 - Fri, Oct 9
Scandinavian Airlines Logo
3:55 pm - 10:10 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
9h 15mnonstop
Scandinavian Airlines Logo
1:05 pm - 1:45 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
9h 40mnonstop
$491Scandinavian Airlines
Sun, Sep 27 - Sun, Oct 11
Multiple Airlines Logo
1:30 pm - 11:35 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
13h 05m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
1:55 pm - 8:36 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
15h 41m1 stop Minneapolis St Paul
$491Multiple Airlines
Sun, Aug 30 - Thu, Sep 10
Delta Logo
6:40 pm - 5:05 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
13h 25m1 stop Paris Charles de Gaulle
Delta Logo
9:00 am - 11:20 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
23h 20m1 stop New York John F Kennedy Intl
$491Delta
Tue, Aug 25 - Wed, Sep 9
Lufthansa Logo
2:50 pm - 12:25 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
12h 35m1 stop Munich Franz Josef Strauss
Lufthansa Logo
11:35 am - 9:27 amCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
30h 52m2 stops Toronto Pearson Intl Vancouver Intl
$493Lufthansa
Sun, Jan 3 - Sat, Jan 9
KLM Logo
7:15 am - 6:45 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
14h 30m1 stop New York John F Kennedy Intl
KLM Logo
8:10 am - 4:35 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
17h 25m1 stop Amsterdam Schiphol
$497KLM
Sun, Oct 4 - Sun, Oct 11
KLM Logo
7:15 am - 6:45 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
14h 30m1 stop New York John F Kennedy Intl
KLM Logo
8:10 am - 4:35 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
17h 25m1 stop Amsterdam Schiphol
$497KLM
Tue, Oct 6 - Sun, Oct 11
Lufthansa Logo
3:15 pm - 10:05 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
33h 50m2 stops Vancouver Intl Toronto Pearson Intl
Lufthansa Logo
6:20 pm - 1:00 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
27h 40m1 stop Munich Franz Josef Strauss
$514Lufthansa
Fri, Nov 13 - Tue, Nov 17

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Delta flights from Seattle to Copenhagen

Our best Delta deals on Seattle to Copenhagen flight tickets
Delta
Aug 25
SEA1:30 pmSeattle/Tacoma Intl
18h 35m
1 stop
CPH5:05 pmKastrup Copenhagen
Sep 2
CPH9:00 amKastrup Copenhagen
23h 20m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$491
Delta
Aug 23
SEA1:30 pmSeattle/Tacoma Intl
20h 15m
1 stop
CPH6:45 pmKastrup Copenhagen
Aug 27
CPH9:00 amKastrup Copenhagen
23h 57m
2 stops
SEA11:57 pmSeattle/Tacoma Intl
$496
Delta
Oct 11
SEA10:59 pmSeattle/Tacoma Intl
22h 46m
1 stop
CPH6:45 amKastrup Copenhagen
Nov 25
CPH10:05 amKastrup Copenhagen
14h 09m
1 stop
SEA3:14 pmSeattle/Tacoma Intl
$497

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets
Icelandair
Dec 11
SEA2:35 pmSeattle/Tacoma Intl
16h 25m
1 stop
CPH4:00 pmKastrup Copenhagen
Dec 20
CPH12:55 pmKastrup Copenhagen
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$500
Icelandair
Nov 9
SEA2:35 pmSeattle/Tacoma Intl
12h 10m
1 stop
CPH11:45 amKastrup Copenhagen
Nov 17
CPH8:45 pmKastrup Copenhagen
29h 15m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$501
Icelandair
Dec 14
SEA2:35 pmSeattle/Tacoma Intl
20h 10m
1 stop
CPH7:45 pmKastrup Copenhagen
Dec 21
CPH12:55 pmKastrup Copenhagen
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$535

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Copenhagen that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 13, 2026.
Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Wed 1/27

10:10 am-10:20 am

2 stops39h 10m

Kastrup Copenhagen

Sun 2/7

11:35 am-8:59 pm

1 stop18h 24m

$484

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 10/9

1:30 pm-6:45 pm

1 stop20h 15m

Kastrup Copenhagen

Tue 10/13

9:00 am-8:09 pm

1 stop20h 09m

$491
Quickest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-10:10 am

Nonstop9h 15m

Kastrup Copenhagen

Fri 10/9

1:05 pm-1:45 pm

Nonstop9h 40m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 9/27

3:55 pm-10:10 am

Nonstop9h 15m

Kastrup Copenhagen

Sun 10/11

1:05 pm-1:45 pm

Nonstop9h 40m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 8/30

1:30 pm-11:35 am

1 stop13h 05m

Kastrup Copenhagen

Thu 9/10

1:55 pm-8:36 pm

1 stop15h 41m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 8/25

6:40 pm-5:05 pm

1 stop13h 25m

Kastrup Copenhagen

Wed 9/9

9:00 am-11:20 pm

1 stop23h 20m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 1/3

2:50 pm-12:25 pm

1 stop12h 35m

Kastrup Copenhagen

Sat 1/9

11:35 am-9:27 am

2 stops30h 52m

$493

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 10/4

7:15 am-6:45 am

1 stop14h 30m

Kastrup Copenhagen

Sun 10/11

8:10 am-4:35 pm

1 stop17h 25m

$497

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 10/6

7:15 am-6:45 am

1 stop14h 30m

Kastrup Copenhagen

Sun 10/11

8:10 am-4:35 pm

1 stop17h 25m

$497

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 11/13

3:15 pm-10:05 am

2 stops33h 50m

Kastrup Copenhagen

Tue 11/17

6:20 pm-1:00 pm

1 stop27h 40m

$514

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $571 to $847.
The lowest price recently found on this route was $484.

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 $515.

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

The cheapest day to depart from Seattle to Copenhagen is on a Sunday when prices can be found for as low as $745. 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 $825.

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 $628 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 $616 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 58% 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 August 2026, prices for Seattle to Copenhagen flights are approximately 59% 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

$527

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 $527. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $606.
The fastest flight from Seattle to Copenhagen takes 9h 15m
Direct flights go from Seattle to Copenhagen on Monday, Wednesday, Saturday and Sunday. The only airline offering direct flights is Scandinavian Airlines.
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?

  • 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?

  • 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
Airline
Rating
Free Cancellation
Price
SWISSPriceFrom $371Free CancellationRating
7.5
2,035 reviews
Search SWISS flights
IcelandairPriceFrom $420Free CancellationRating
6.9
728 reviews
Search Icelandair flights
Air FrancePriceFrom $469Free CancellationRating
7.5
1,641 reviews
Search Air France flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,466 reviews
Search Air Canada flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
10,112 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $502Free CancellationRating
7.4
1,949 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $506Free CancellationRating
7.8
8,503 reviews
Search Delta flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
8,161 reviews
Search British Airways flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,182 reviews
Search Lufthansa flights
KLMPriceFrom $540Free CancellationRating
7.8
1,557 reviews
Search KLM flights

  • Delta Flights From Seattle to Copenhagen

    Delta operates around 4 flights from Seattle to Copenhagen every week. The average price of these flights found in the last 72 hours has been $679, but momondo users have found Delta deals from Seattle to Copenhagen from as low as $506 round-trip. Delta has been scored 7.8/10 in 8,503 reviews.

  • Air France Flights From Seattle to Copenhagen

    Another popular option for Seattle to Copenhagen flights is Air France (7.5/10, 1,641 ratings). Air France flies from Seattle to Copenhagen around 4 times per week, with deals starting from $469 round-trip and rising to an average price of around $663.

Traveling to a place near Copenhagen?

Book flights to Copenhagen if you plan to visit one of these locations
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

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