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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 4/28. 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

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.
United Airlines Logo
8:00 am - 10:35 am
SEA
-
CPH
17h 35m
1 stop
United Airlines Logo
12:30 pm - 7:08 pm
CPH
-
SEA
39h 38m
2 stops
$471United Airlines
Sun, Aug 16 - Mon, Aug 24
Lufthansa Logo
6:50 pm - 6:40 pm
SEA
-
CPH
14h 50m
1 stop
Lufthansa Logo
6:00 am - 4:59 pm
CPH
-
SEA
19h 59m
1 stop
$474Lufthansa
Sun, May 3 - Fri, May 8
Lufthansa Logo
6:50 pm - 6:40 pm
SEA
-
CPH
14h 50m
1 stop
Lufthansa Logo
6:05 am - 4:59 pm
CPH
-
SEA
19h 54m
1 stop
$476Lufthansa
Sun, May 3 - Sun, May 10
Lufthansa Logo
6:50 pm - 4:25 pm
SEA
-
CPH
12h 35m
1 stop
Lufthansa Logo
6:20 am - 12:20 pm
CPH
-
SEA
15h 00m
1 stop
$483Lufthansa
Sun, May 3 - Sun, May 10
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
4:55 pm - 8:40 pm
CPH
-
SEA
12h 45m
1 stop
$489Icelandair
Wed, May 6 - Mon, May 11
Multiple Airlines Logo
8:00 am - 10:35 am
SEA
-
CPH
17h 35m
1 stop
Multiple Airlines Logo
5:10 pm - 4:59 pm
CPH
-
SEA
32h 49m
1 stop
$490Multiple Airlines
Sun, Aug 16 - Mon, Aug 24
Icelandair Logo
7:00 pm - 9:45 pm
SEA
-
CPH
17h 45m
1 stop
Icelandair Logo
10:35 pm - 8:40 pm
CPH
-
SEA
31h 05m
1 stop
$491Icelandair
Wed, May 6 - Wed, May 13
United Airlines Logo
10:53 pm - 10:50 am
SEA
-
CPH
26h 57m
2 stops
United Airlines Logo
6:05 am - 4:59 pm
CPH
-
SEA
19h 54m
1 stop
$502United Airlines
Sun, May 3 - Sun, May 10
Multiple Airlines Logo
8:00 am - 11:55 am
SEA
-
CPH
18h 55m
2 stops
Multiple Airlines Logo
6:00 am - 4:59 pm
CPH
-
SEA
19h 59m
1 stop
$506Multiple Airlines
Sun, May 3 - Fri, May 8
United Airlines Logo
11:53 pm - 10:50 am
SEA
-
CPH
25h 57m
2 stops
United Airlines Logo
6:40 am - 12:20 pm
CPH
-
SEA
14h 40m
1 stop
$510United Airlines
Sun, May 3 - Mon, May 11

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Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets
Icelandair
Apr 28
SEA7:00 pmSeattle/Tacoma Intl
17h 45m
1 stop
CPH9:45 pmKastrup Copenhagen
May 6
CPH2:00 pmKastrup Copenhagen
12h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$481
Icelandair
Apr 28
SEA7:00 pmSeattle/Tacoma Intl
11h 55m
1 stop
CPH3:55 pmKastrup Copenhagen
May 7
CPH4:55 pmKastrup Copenhagen
12h 45m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$483
Icelandair
May 6
SEA7:00 pmSeattle/Tacoma Intl
17h 45m
1 stop
CPH9:45 pmKastrup Copenhagen
May 11
CPH4:55 pmKastrup Copenhagen
12h 45m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$489

Lufthansa flights from Seattle to Copenhagen

Our best Lufthansa deals on Seattle to Copenhagen flight tickets
Lufthansa
May 3
SEA6:50 pmSeattle/Tacoma Intl
14h 50m
1 stop
CPH6:40 pmKastrup Copenhagen
May 8
CPH6:00 amKastrup Copenhagen
19h 59m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$474
Lufthansa
May 3
SEA6:50 pmSeattle/Tacoma Intl
14h 50m
1 stop
CPH6:40 pmKastrup Copenhagen
May 10
CPH6:05 amKastrup Copenhagen
19h 54m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$476
Lufthansa
May 3
SEA6:50 pmSeattle/Tacoma Intl
12h 35m
1 stop
CPH4:25 pmKastrup Copenhagen
May 10
CPH6:20 amKastrup Copenhagen
15h 00m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$483

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 April 23, 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 8/16

8:00 am-10:35 am

1 stop17h 35m

Kastrup Copenhagen

Mon 8/24

12:30 pm-7:08 pm

2 stops39h 38m

$471

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

6:50 pm-6:40 pm

1 stop14h 50m

Kastrup Copenhagen

Fri 5/8

6:00 am-4:59 pm

1 stop19h 59m

$474

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

6:50 pm-6:40 pm

1 stop14h 50m

Kastrup Copenhagen

Sun 5/10

6:05 am-4:59 pm

1 stop19h 54m

$476
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

6:50 pm-4:25 pm

1 stop12h 35m

Kastrup Copenhagen

Sun 5/10

6:20 am-12:20 pm

1 stop15h 00m

$483

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 5/6

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Mon 5/11

4:55 pm-8:40 pm

1 stop12h 45m

$489

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 8/16

8:00 am-10:35 am

1 stop17h 35m

Kastrup Copenhagen

Mon 8/24

5:10 pm-4:59 pm

1 stop32h 49m

$490

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 5/6

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Wed 5/13

10:35 pm-8:40 pm

1 stop31h 05m

$491

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

10:53 pm-10:50 am

2 stops26h 57m

Kastrup Copenhagen

Sun 5/10

6:05 am-4:59 pm

1 stop19h 54m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

8:00 am-11:55 am

2 stops18h 55m

Kastrup Copenhagen

Fri 5/8

6:00 am-4:59 pm

1 stop19h 59m

$506

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

11:53 pm-10:50 am

2 stops25h 57m

Kastrup Copenhagen

Mon 5/11

6:40 am-12:20 pm

1 stop14h 40m

$510

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 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 $649. When flying out on a Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Seattle to Copenhagen for around $739.

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 $601 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 $571 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 53% 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 April 2026, 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

$562

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 $562. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $687.
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
7.6
1,926 reviews
Search SWISS flights
FinnairPriceFrom $385Free CancellationRating
7.7
1,390 reviews
Search Finnair flights
IcelandairPriceFrom $420Free CancellationRating
7.0
639 reviews
Search Icelandair flights
Air FrancePriceFrom $469Free CancellationRating
7.4
1,579 reviews
Search Air France flights
DeltaPriceFrom $506Free CancellationRating
7.9
8,439 reviews
Search Delta flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,909 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $511Free CancellationRating
7.3
1,757 reviews
Search Scandinavian Airlines flights
Air CanadaPriceFrom $515Free CancellationRating
7.1
10,957 reviews
Search Air Canada flights
KLMPriceFrom $528Free CancellationRating
7.8
1,508 reviews
Search KLM flights
LufthansaPriceFrom $530Free CancellationRating
6.8
7,941 reviews
Search Lufthansa 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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