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Cheap flights from Seattle to Copenhagen from $262

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 4/15. 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
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.
Virgin Atlantic Logo
10:58 pm - 6:45 am
SEA
-
CPH
22h 47m
1 stop
Virgin Atlantic Logo
9:00 am - 7:59 pm
CPH
-
SEA
19h 59m
1 stop
$363Virgin Atlantic
Sun, Mar 29 - Mon, Apr 13
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
2:00 pm - 8:40 pm
CPH
-
SEA
15h 40m
1 stop
$369Icelandair
Sun, Mar 29 - Tue, Apr 14
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
10:35 pm - 5:55 pm
CPH
-
SEA
28h 20m
1 stop
$419Icelandair
Sun, Mar 29 - Mon, Apr 13
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
10:35 pm - 5:55 pm
CPH
-
SEA
28h 20m
1 stop
$420Icelandair
Sun, Mar 29 - Mon, Apr 13
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
2:00 pm - 8:40 pm
CPH
-
SEA
15h 40m
1 stop
$422Icelandair
Thu, Apr 23 - Tue, Apr 28
Icelandair Logo
3:40 pm - 12:55 pm
SEA
-
CPH
12h 15m
1 stop
Icelandair Logo
10:35 pm - 5:55 pm
CPH
-
SEA
28h 20m
1 stop
$424Icelandair
Mon, Mar 30 - Mon, Apr 13
Air Canada Logo
3:40 pm - 10:50 am
SEA
-
CPH
34h 10m
2 stops
Air Canada Logo
12:45 pm - 9:33 am
CPH
-
SEA
29h 48m
2 stops
$428Air Canada
Sun, Mar 29 - Tue, Apr 14
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
2:00 pm - 5:55 pm
CPH
-
SEA
12h 55m
1 stop
$430Icelandair
Wed, Apr 22 - Fri, May 8
Icelandair Logo
7:00 pm - 3:55 pm
SEA
-
CPH
11h 55m
1 stop
Icelandair Logo
4:55 pm - 5:55 pm
CPH
-
SEA
34h 00m
1 stop
$431Icelandair
Fri, Apr 17 - Sun, May 10
Icelandair Logo
7:00 pm - 3:55 pm
SEA
-
CPH
11h 55m
1 stop
Icelandair Logo
4:55 pm - 8:40 pm
CPH
-
SEA
12h 45m
1 stop
$434Icelandair
Thu, Apr 16 - Sat, May 9

Finnair flights from Seattle to Copenhagen

Our best Finnair deals on Seattle to Copenhagen flight tickets
Finnair
May 5
SEA1:19 pmSeattle/Tacoma Intl
17h 56m
2 stops
CPH4:15 pmKastrup Copenhagen
May 10
CPH12:25 pmKastrup Copenhagen
12h 35m
1 stop
SEA4:00 pmSeattle/Tacoma Intl
$497
Finnair
May 5
SEA1:19 pmSeattle/Tacoma Intl
17h 56m
2 stops
CPH4:15 pmKastrup Copenhagen
May 12
CPH12:25 pmKastrup Copenhagen
19h 13m
2 stops
SEA10:38 pmSeattle/Tacoma Intl
$507

KLM flights from Seattle to Copenhagen

Our best KLM deals on Seattle to Copenhagen flight tickets
KLM
May 15
SEA1:45 pmSeattle/Tacoma Intl
13h 05m
1 stop
CPH11:50 amKastrup Copenhagen
May 27
CPH8:10 amKastrup Copenhagen
17h 20m
1 stop
SEA4:30 pmSeattle/Tacoma Intl
$499
KLM
Feb 22
SEA3:05 pmSeattle/Tacoma Intl
16h 10m
1 stop
CPH4:15 pmKastrup Copenhagen
Feb 25
CPH9:45 pmKastrup Copenhagen
22h 55m
1 stop
SEA11:40 amSeattle/Tacoma Intl
$501

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 February 11, 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

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/29

10:58 pm-6:45 am

1 stop22h 47m

Kastrup Copenhagen

Mon 4/13

9:00 am-7:59 pm

1 stop19h 59m

$363

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/29

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Tue 4/14

2:00 pm-8:40 pm

1 stop15h 40m

$369

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/29

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Mon 4/13

10:35 pm-5:55 pm

1 stop28h 20m

$419

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/29

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Mon 4/13

10:35 pm-5:55 pm

1 stop28h 20m

$420

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/23

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Tue 4/28

2:00 pm-8:40 pm

1 stop15h 40m

$422

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/30

3:40 pm-12:55 pm

1 stop12h 15m

Kastrup Copenhagen

Mon 4/13

10:35 pm-5:55 pm

1 stop28h 20m

$424

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/29

3:40 pm-10:50 am

2 stops34h 10m

Kastrup Copenhagen

Tue 4/14

12:45 pm-9:33 am

2 stops29h 48m

$428

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 4/22

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Fri 5/8

2:00 pm-5:55 pm

1 stop12h 55m

$430

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 4/17

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Sun 5/10

4:55 pm-5:55 pm

1 stop34h 00m

$431

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/16

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Sat 5/9

4:55 pm-8:40 pm

1 stop12h 45m

$434

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 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 October is also cheap. Prices for this month can be found on momondo for an average of $523.

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 $653. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Copenhagen for around $737.

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 $605 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 $615 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 February 2026, prices for Seattle to Copenhagen flights are approximately 19% 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

$459

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 $459. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $559.
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

  • 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
FinnairPriceFrom $385Free CancellationRating
7.6
1,360 reviews
Search Finnair flights
IcelandairPriceFrom $421Free CancellationRating
7.1
611 reviews
Search Icelandair flights
Air FrancePriceFrom $487Free CancellationRating
7.4
1,531 reviews
Search Air France flights
Scandinavian AirlinesPriceFrom $498Free CancellationRating
7.3
1,679 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,728 reviews
Search British Airways flights
DeltaPriceFrom $531Free CancellationRating
7.9
8,180 reviews
Search Delta flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,777 reviews
Search Lufthansa flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,274 reviews
Search United Airlines flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,705 reviews
Search Air Canada flights
KLMPriceFrom $540Free CancellationRating
7.7
1,451 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.

An easier way to manage your Copenhagen trip

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