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Cheap flights from Seattle to Copenhagen from $276

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 1/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Icelandair Logo
2:35 pm - 8:35 pmSEA-CPH
21h 00m1 stop
Icelandair Logo
12:55 pm - 5:00 pmCPH-SEA
13h 05m1 stop
$473Icelandair
Find Deal
Wed, Dec 10 - Tue, Jan 13
Scandinavian Airlines Logo
6:04 am - 10:40 amSEA-CPH
19h 36m1 stop
Scandinavian Airlines Logo
12:55 pm - 10:16 pmCPH-SEA
17h 21m1 stop
$475Scandinavian Airlines
Find Deal
Mon, Feb 23 - Tue, Mar 10
Icelandair Logo
3:45 pm - 9:45 pmSEA-CPH
21h 00m1 stop
Icelandair Logo
5:15 pm - 5:50 pmCPH-SEA
33h 35m1 stop
$478Icelandair
Find Deal
Sun, Apr 5 - Sun, Apr 12
Icelandair Logo
3:35 pm - 11:45 amSEA-CPH
12h 10m1 stop
Icelandair Logo
6:15 am - 6:00 pmCPH-SEA
19h 45m1 stop
$491Icelandair
Find Deal
Thu, Mar 12 - Wed, Mar 18
Scandinavian Airlines Logo
2:00 pm - 3:10 pmSEA-CPH
16h 10m1 stop
Scandinavian Airlines Logo
9:55 am - 10:16 pmCPH-SEA
21h 21m2 stops
$492Scandinavian Airlines
Find Deal
Mon, Apr 20 - Mon, Apr 27
Icelandair Logo
3:35 pm - 7:50 pmSEA-CPH
20h 15m1 stop
Icelandair Logo
4:15 pm - 5:50 pmCPH-SEA
33h 35m1 stop
$493Icelandair
Find Deal
Sun, Mar 22 - Sat, Mar 28
Scandinavian Airlines Logo
7:20 am - 8:40 amSEA-CPH
16h 20m1 stop
Scandinavian Airlines Logo
11:10 pm - 10:16 pmCPH-SEA
32h 06m2 stops
$503Scandinavian Airlines
Find Deal
Mon, Apr 6 - Tue, Apr 14
Multiple Airlines Logo
3:40 pm - 4:25 pmSEA-CPH
15h 45m2 stops
Multiple Airlines Logo
6:40 am - 6:36 pmCPH-SEA
20h 56m2 stops
$506Multiple Airlines
Find Deal
Thu, Apr 23 - Mon, May 4
British Airways Logo
8:04 am - 1:30 pmSEA-CPH
20h 26m2 stops
British Airways Logo
12:15 pm - 4:55 pmCPH-SEA
13h 40m1 stop
$507British Airways
Find Deal
Sun, Jan 18 - Fri, Jan 30
British Airways Logo
1:37 pm - 7:00 pmSEA-CPH
21h 23m2 stops
British Airways Logo
8:50 am - 11:35 amCPH-SEA
35h 45m2 stops
$508British Airways
Find Deal
Wed, Mar 25 - Tue, Mar 31

Icelandair flights from Seattle to Copenhagen

Our best Icelandair deals on Seattle to Copenhagen flight tickets
Icelandair
Dec 10
SEA2:35 pmSeattle/Tacoma Intl
21h 00m
1 stop
CPH8:35 pmKastrup Copenhagen
Jan 13
CPH12:55 pmKastrup Copenhagen
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$473
Find similar
Icelandair
Apr 5
SEA3:45 pmSeattle/Tacoma Intl
21h 00m
1 stop
CPH9:45 pmKastrup Copenhagen
Apr 12
CPH5:15 pmKastrup Copenhagen
33h 35m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
$478
Find similar
Icelandair
Mar 12
SEA3:35 pmSeattle/Tacoma Intl
12h 10m
1 stop
CPH11:45 amKastrup Copenhagen
Mar 18
CPH6:15 amKastrup Copenhagen
19h 45m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$491
Find similar

British Airways flights from Seattle to Copenhagen

Our best British Airways deals on Seattle to Copenhagen flight tickets
British Airways
Jan 18
SEA8:04 amSeattle/Tacoma Intl
20h 26m
2 stops
CPH1:30 pmKastrup Copenhagen
Jan 30
CPH12:15 pmKastrup Copenhagen
13h 40m
1 stop
SEA4:55 pmSeattle/Tacoma Intl
$507
Find similar
British Airways
Mar 25
SEA1:37 pmSeattle/Tacoma Intl
21h 23m
2 stops
CPH7:00 pmKastrup Copenhagen
Mar 31
CPH8:50 amKastrup Copenhagen
35h 45m
2 stops
SEA11:35 amSeattle/Tacoma Intl
$508
Find similar
British Airways
Jan 18
SEA8:04 amSeattle/Tacoma Intl
20h 26m
2 stops
CPH1:30 pmKastrup Copenhagen
Jan 30
CPH6:55 amKastrup Copenhagen
24h 25m
2 stops
SEA10:20 pmSeattle/Tacoma Intl
$510
Find similar

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 November 24, 2025.
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

Wed 12/10

2:35 pm-8:35 pm

1 stop21h 00m

Kastrup Copenhagen

Tue 1/13

12:55 pm-5:00 pm

1 stop13h 05m

$473

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 2/23

6:04 am-10:40 am

1 stop19h 36m

Kastrup Copenhagen

Tue 3/10

12:55 pm-10:16 pm

1 stop17h 21m

$475

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/5

3:45 pm-9:45 pm

1 stop21h 00m

Kastrup Copenhagen

Sun 4/12

5:15 pm-5:50 pm

1 stop33h 35m

$478

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 3/12

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Wed 3/18

6:15 am-6:00 pm

1 stop19h 45m

$491

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 4/20

2:00 pm-3:10 pm

1 stop16h 10m

Kastrup Copenhagen

Mon 4/27

9:55 am-10:16 pm

2 stops21h 21m

$492

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/22

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

Sat 3/28

4:15 pm-5:50 pm

1 stop33h 35m

$493

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 4/6

7:20 am-8:40 am

1 stop16h 20m

Kastrup Copenhagen

Tue 4/14

11:10 pm-10:16 pm

2 stops32h 06m

$503

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/23

3:40 pm-4:25 pm

2 stops15h 45m

Kastrup Copenhagen

Mon 5/4

6:40 am-6:36 pm

2 stops20h 56m

$506

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 1/18

8:04 am-1:30 pm

2 stops20h 26m

Kastrup Copenhagen

Fri 1/30

12:15 pm-4:55 pm

1 stop13h 40m

$507

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/25

1:37 pm-7:00 pm

2 stops21h 23m

Kastrup Copenhagen

Tue 3/31

8:50 am-11:35 am

2 stops35h 45m

$508

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 October. Flight prices, which tend to average around $523, 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 October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $569.

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

The cheapest day to depart from Seattle to Copenhagen is on a Tuesday when prices can be found for as low as $646. 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 $746.

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

Flying to Copenhagen from Seattle in the evening is the least expensive time of day to depart. momondo users have found prices as low as $632 when looking at flights departing in the evening. Try not to purchase tickets in the morning because they tend to be around $782. Of course, these prices can vary depending on the time of year and what airport you fly to.

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 $625 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 $588 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 November 2025, prices for Seattle to Copenhagen flights are approximately 24% 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

$456

Direct flights

None
The best one-way flight to Copenhagen from Seattle in the past 72 hours is $456. The best round-trip flight deal from Seattle to Copenhagen found on momondo in the last 72 hours is $568.
There are no direct flights from Seattle to Copenhagen. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kastrup Copenhagen Airport.
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 12h 10m.

  • 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
Air FrancePriceFrom $418Free CancellationRating
7.4
1,494 reviews
Search Air France flights
IcelandairPriceFrom $424Free CancellationRating
7.0
581 reviews
Search Icelandair flights
American AirlinesPriceFrom $492Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $495Free CancellationRating
7.4
1,585 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $504Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
British AirwaysPriceFrom $528Free CancellationRating
6.7
7,535 reviews
Search British Airways flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,466 reviews
Search Air Canada flights
DeltaPriceFrom $558Free CancellationRating
7.9
7,993 reviews
Search Delta flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,038 reviews
Search United Airlines flights
KLMPriceFrom $584Free CancellationRating
7.7
1,419 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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