Cheap flights from Seattle to Copenhagen from $227

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Copenhagen

Cheap round-trip flights

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United Airlines Logo
5:07 am - 10:20 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
20h 13m2 stops Denver Intl Toronto Pearson Intl
United Airlines Logo
6:05 am - 8:59 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
22h 54m2 stops Munich Franz Josef Strauss Toronto Pearson Intl
$515United Airlines
Thu, Mar 4 - Thu, Mar 18
United Airlines Logo
5:05 am - 5:35 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
27h 30m2 stops Denver Intl Munich Franz Josef Strauss
United Airlines Logo
8:55 am - 1:00 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
13h 05m1 stop Munich Franz Josef Strauss
$515United Airlines
Sun, Dec 6 - Wed, Dec 16
Icelandair Logo
3:40 pm - 4:10 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
15h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
5:15 pm - 8:40 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
12h 25m1 stop Reykjavik Keflavik Intl
$516Icelandair
Sun, Apr 11 - Sat, Apr 17
Icelandair Logo
3:40 pm - 4:10 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
15h 30m1 stop Reykjavik Keflavik Intl
Icelandair Logo
10:35 pm - 5:55 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
28h 20m1 stop Reykjavik Keflavik Intl
$516Icelandair
Mon, Apr 12 - Mon, Apr 19
Lufthansa Logo
10:10 am - 10:20 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
39h 10m2 stops Vancouver Intl Toronto Pearson Intl
Lufthansa Logo
1:10 pm - 1:00 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
32h 50m1 stop Munich Franz Josef Strauss
$516Lufthansa
Mon, Nov 30 - Tue, Dec 15
Lufthansa Logo
2:50 pm - 5:35 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
17h 45m1 stop Munich Franz Josef Strauss
Lufthansa Logo
2:15 pm - 12:00 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
30h 45m1 stop Frankfurt am Main
$516Lufthansa
Fri, Dec 4 - Sun, Dec 6
Multiple Airlines Logo
7:15 pm - 10:50 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
30h 35m2 stops Vancouver Intl Toronto Pearson Intl
Multiple Airlines Logo
7:55 pm - 10:29 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
35h 34m2 stops Zurich Chicago O'Hare Intl
$516Multiple Airlines
Mon, May 3 - Mon, May 10
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
9:50 am - 8:55 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 05m2 stops Zurich San Francisco
$516Multiple Airlines
Thu, Feb 11 - Wed, Feb 17
Air Canada Logo
8:40 am - 10:50 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
17h 10m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
10:10 am - 6:23 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
17h 13m2 stops Frankfurt am Main Vancouver Intl
$522Air Canada
Sat, Apr 10 - Sun, Apr 18
Air Canada Logo
7:45 am - 11:55 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
19h 10m2 stops Toronto Pearson Intl Munich Franz Josef Strauss
Air Canada Logo
9:40 am - 8:48 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 08m2 stops Zurich Toronto Pearson Intl
$527Air Canada
Fri, Apr 9 - Sat, Apr 17

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Lufthansa flights from Seattle to Copenhagen

Our best Lufthansa deals on Seattle to Copenhagen flight tickets
Lufthansa
Dec 4
SEA2:50 pmSeattle/Tacoma Intl
17h 45m
1 stop
CPH5:35 pmKastrup Copenhagen
Dec 6
CPH2:15 pmKastrup Copenhagen
30h 45m
1 stop
SEA12:00 pmSeattle/Tacoma Intl
$515
Lufthansa
Dec 2
SEA2:50 pmSeattle/Tacoma Intl
12h 35m
1 stop
CPH12:25 pmKastrup Copenhagen
Dec 14
CPH7:15 amKastrup Copenhagen
13h 45m
1 stop
SEA12:00 pmSeattle/Tacoma Intl
$518
Lufthansa
Nov 13
SEA2:50 pmSeattle/Tacoma Intl
12h 35m
1 stop
CPH12:25 pmKastrup Copenhagen
Nov 17
CPH6:20 pmKastrup Copenhagen
27h 40m
1 stop
SEA1:00 pmSeattle/Tacoma Intl
$520

United Airlines flights from Seattle to Copenhagen

Our best United Airlines deals on Seattle to Copenhagen flight tickets
United Airlines
Nov 30
SEA1:50 pmSeattle/Tacoma Intl
14h 40m
1 stop
CPH1:30 pmKastrup Copenhagen
Dec 5
CPH11:35 amKastrup Copenhagen
18h 24m
1 stop
SEA8:59 pmSeattle/Tacoma Intl
$516
United Airlines
Apr 11
SEA6:50 pmSeattle/Tacoma Intl
19h 40m
1 stop
CPH11:30 pmKastrup Copenhagen
Apr 26
CPH6:00 amKastrup Copenhagen
20h 20m
1 stop
SEA5:20 pmSeattle/Tacoma Intl
$517
United Airlines
Dec 4
SEA7:00 amSeattle/Tacoma Intl
18h 20m
2 stops
CPH10:20 amKastrup Copenhagen
Dec 14
CPH7:15 amKastrup Copenhagen
37h 29m
2 stops
SEA11:44 amSeattle/Tacoma Intl
$519

momondo Fare Finder

 
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

Thu 3/4

5:07 am-10:20 am

2 stops20h 13m

Kastrup Copenhagen

Thu 3/18

6:05 am-8:59 pm

2 stops22h 54m

$515

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 12/6

5:05 am-5:35 pm

2 stops27h 30m

Kastrup Copenhagen

Wed 12/16

8:55 am-1:00 pm

1 stop13h 05m

$515
Quickest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 4/11

3:40 pm-4:10 pm

1 stop15h 30m

Kastrup Copenhagen

Sat 4/17

5:15 pm-8:40 pm

1 stop12h 25m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 4/12

3:40 pm-4:10 pm

1 stop15h 30m

Kastrup Copenhagen

Mon 4/19

10:35 pm-5:55 pm

1 stop28h 20m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 11/30

10:10 am-10:20 am

2 stops39h 10m

Kastrup Copenhagen

Tue 12/15

1:10 pm-1:00 pm

1 stop32h 50m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 12/4

2:50 pm-5:35 pm

1 stop17h 45m

Kastrup Copenhagen

Sun 12/6

2:15 pm-12:00 pm

1 stop30h 45m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 5/3

7:15 pm-10:50 am

2 stops30h 35m

Kastrup Copenhagen

Mon 5/10

7:55 pm-10:29 pm

2 stops35h 34m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 2/11

10:10 am-10:20 am

2 stops39h 10m

Kastrup Copenhagen

Wed 2/17

9:50 am-8:55 pm

2 stops20h 05m

$516

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sat 4/10

8:40 am-10:50 am

2 stops17h 10m

Kastrup Copenhagen

Sun 4/18

10:10 am-6:23 pm

2 stops17h 13m

$522

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 4/9

7:45 am-11:55 am

2 stops19h 10m

Kastrup Copenhagen

Sat 4/17

9:40 am-8:48 pm

2 stops20h 08m

$527

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 typical for flights on this route.

Typical prices usually range from $510 to $643.
The lowest price recently found on this route was $515.

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 $501, 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 $527.

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 $728. 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 $845.

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 $639 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 $599 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 18% 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 November 2026, prices for Seattle to Copenhagen flights are approximately 58% 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

$227

Fastest flight time

9h 15m

Direct flights

None
The best one-way flight to Copenhagen from Seattle in the past 72 hours is $227. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $515.
The fastest flight from Seattle to Copenhagen takes 9h 15m
There are no direct flights from Seattle to Copenhagen. There are no popular flight routes from Seattle to Copenhagen.

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
IcelandairPriceFrom $439Free CancellationRating
6.9
767 reviews
Search Icelandair flights
British AirwaysPriceFrom $440Free CancellationRating
6.7
8,286 reviews
Search British Airways flights
Air FrancePriceFrom $469Free CancellationRating
7.5
1,647 reviews
Search Air France flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,880 reviews
Search Air Canada flights
United AirlinesPriceFrom $482Free CancellationRating
7.3
10,472 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $503Free CancellationRating
7.5
2,028 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $506Free CancellationRating
7.8
8,700 reviews
Search Delta flights
LufthansaPriceFrom $512Free CancellationRating
6.8
8,290 reviews
Search Lufthansa flights
KLMPriceFrom $524Free CancellationRating
7.8
1,595 reviews
Search KLM flights

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.

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1 adult
Thu 12/10
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