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Cheap flights from Seattle to Copenhagen from $189

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 7/29. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Copenhagen

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
7:20 am - 8:40 pm
CPH
-
SEA
22h 20m
1 stop
$601Icelandair
Sun, Jul 5 - Tue, Jul 21
Icelandair Logo
11:25 pm - 9:45 pm
SEA
-
CPH
13h 20m
1 stop
Icelandair Logo
7:20 am - 11:45 am
CPH
-
SEA
13h 25m
1 stop
$603Icelandair
Fri, Jul 3 - Wed, Jul 8
Icelandair Logo
7:00 pm - 3:55 pm
SEA
-
CPH
11h 55m
1 stop
Icelandair Logo
2:00 pm - 8:40 pm
CPH
-
SEA
15h 40m
1 stop
$604Icelandair
Sun, Jun 28 - Tue, Jul 14
Multiple Airlines Logo
1:30 pm - 11:45 am
SEA
-
CPH
13h 15m
1 stop
Multiple Airlines Logo
1:55 pm - 8:50 pm
CPH
-
SEA
15h 55m
1 stop
$605Multiple Airlines
Tue, Jul 28 - Mon, Aug 17
Delta Logo
5:30 am - 8:30 am
SEA
-
CPH
18h 00m
2 stops
Delta Logo
12:20 pm - 5:43 pm
CPH
-
SEA
14h 23m
1 stop
$606Delta
Thu, Aug 20 - Tue, Sep 1
Delta Logo
6:40 pm - 9:15 am
SEA
-
CPH
29h 35m
1 stop
Delta Logo
9:00 am - 11:20 pm
CPH
-
SEA
23h 20m
1 stop
$607Delta
Mon, Aug 3 - Mon, Aug 10
United Airlines Logo
11:00 pm - 10:50 am
SEA
-
CPH
26h 50m
2 stops
United Airlines Logo
8:40 am - 4:59 pm
CPH
-
SEA
17h 19m
1 stop
$609United Airlines
Wed, Sep 2 - Sat, Sep 12
Delta Logo
9:45 pm - 6:45 am
SEA
-
CPH
24h 00m
2 stops
Delta Logo
2:45 pm - 11:47 am
CPH
-
SEA
30h 02m
1 stop
$610Delta
Sun, Aug 30 - Mon, Sep 7
Delta Logo
6:05 am - 11:45 am
SEA
-
CPH
20h 40m
1 stop
Delta Logo
6:00 am - 11:37 am
CPH
-
SEA
14h 37m
1 stop
$611Delta
Fri, Aug 7 - Fri, Aug 14
Multiple Airlines Logo
6:35 pm - 6:20 am
SEA
-
CPH
26h 45m
1 stop
Multiple Airlines Logo
10:35 pm - 1:40 pm
CPH
-
SEA
24h 05m
1 stop
$612Multiple Airlines
Sun, Jul 5 - Tue, Jul 21

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United Airlines flights from Seattle to Copenhagen

Our best United Airlines deals on Seattle to Copenhagen flight tickets
United Airlines
Sep 2
SEA11:00 pmSeattle/Tacoma Intl
26h 50m
2 stops
CPH10:50 amKastrup Copenhagen
Sep 12
CPH8:40 amKastrup Copenhagen
17h 19m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$609
United Airlines
Aug 27
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Sep 7
CPH6:40 amKastrup Copenhagen
14h 15m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$613
United Airlines
Sep 2
SEA11:00 pmSeattle/Tacoma Intl
26h 50m
2 stops
CPH10:50 amKastrup Copenhagen
Sep 13
CPH6:20 amKastrup Copenhagen
21h 12m
2 stops
SEA6:32 pmSeattle/Tacoma Intl
$618

Delta flights from Seattle to Copenhagen

Our best Delta deals on Seattle to Copenhagen flight tickets
Delta
Aug 20
SEA5:30 amSeattle/Tacoma Intl
18h 00m
2 stops
CPH8:30 amKastrup Copenhagen
Sep 1
CPH12:20 pmKastrup Copenhagen
14h 23m
1 stop
SEA5:43 pmSeattle/Tacoma Intl
$606
Delta
Aug 3
SEA6:40 pmSeattle/Tacoma Intl
29h 35m
1 stop
CPH9:15 amKastrup Copenhagen
Aug 10
CPH9:00 amKastrup Copenhagen
23h 20m
1 stop
SEA11:20 pmSeattle/Tacoma Intl
$607
Delta
Aug 30
SEA9:45 pmSeattle/Tacoma Intl
24h 00m
2 stops
CPH6:45 amKastrup Copenhagen
Sep 7
CPH9:25 amKastrup Copenhagen
16h 10m
1 stop
SEA4:35 pmSeattle/Tacoma Intl
$610

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 June 18, 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 - CPH

SEACPH

Seattle/Tacoma Intl

Sun 7/5

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Tue 7/21

7:20 am-8:40 pm

1 stop22h 20m

$601
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 7/3

11:25 pm-9:45 pm

1 stop13h 20m

Kastrup Copenhagen

Wed 7/8

7:20 am-11:45 am

1 stop13h 25m

$603

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 6/28

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Tue 7/14

2:00 pm-8:40 pm

1 stop15h 40m

$604

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 7/28

1:30 pm-11:45 am

1 stop13h 15m

Kastrup Copenhagen

Mon 8/17

1:55 pm-8:50 pm

1 stop15h 55m

$605

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 8/20

5:30 am-8:30 am

2 stops18h 00m

Kastrup Copenhagen

Tue 9/1

12:20 pm-5:43 pm

1 stop14h 23m

$606

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 8/3

6:40 pm-9:15 am

1 stop29h 35m

Kastrup Copenhagen

Mon 8/10

9:00 am-11:20 pm

1 stop23h 20m

$607

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 9/2

11:00 pm-10:50 am

2 stops26h 50m

Kastrup Copenhagen

Sat 9/12

8:40 am-4:59 pm

1 stop17h 19m

$609

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 8/30

9:45 pm-6:45 am

2 stops24h 00m

Kastrup Copenhagen

Mon 9/7

2:45 pm-11:47 am

1 stop30h 02m

$610

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 8/7

6:05 am-11:45 am

1 stop20h 40m

Kastrup Copenhagen

Fri 8/14

6:00 am-11:37 am

1 stop14h 37m

$611

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 7/5

6:35 pm-6:20 am

1 stop26h 45m

Kastrup Copenhagen

Tue 7/21

10:35 pm-1:40 pm

1 stop24h 05m

$612

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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?

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 $508.

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 $671. 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 $781.

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 $612 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 $563 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 54% 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 June 2026, prices for Seattle to Copenhagen flights are approximately 48% 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

$597

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 $597. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $759.
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?

  • 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
1,971 reviews
Search SWISS flights
IcelandairPriceFrom $419Free CancellationRating
7.0
679 reviews
Search Icelandair flights
Air FrancePriceFrom $469Free CancellationRating
7.4
1,608 reviews
Search Air France flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,214 reviews
Search Air Canada flights
Scandinavian AirlinesPriceFrom $500Free CancellationRating
7.4
1,832 reviews
Search Scandinavian Airlines flights
DeltaPriceFrom $506Free CancellationRating
7.8
8,410 reviews
Search Delta flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
8,054 reviews
Search British Airways flights
United AirlinesPriceFrom $509Free CancellationRating
7.4
9,860 reviews
Search United Airlines flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,073 reviews
Search Lufthansa flights
KLMPriceFrom $528Free CancellationRating
7.8
1,530 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 $672, 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 8,410 reviews.

  • Air France Flights From Seattle to Copenhagen

    Another popular option for Seattle to Copenhagen flights is Air France (7.4/10, 1,608 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 $615.

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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