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Cheap flights from Copenhagen to Seattle from $351

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Copenhagen to Seattle departing on 11/5. 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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Find the cheapest flights from Copenhagen to Seattle

Cheap round-trip flights

Icelandair Logo
2:00 pm - 5:50 pmCPH-SEA
12h 50m1 stop
Icelandair Logo
7:00 pm - 9:45 pmSEA-CPH
17h 45m1 stop
$490Icelandair
Find Deal
Wed, Oct 15 - Wed, Oct 22
Icelandair Logo
4:45 pm - 8:40 pmCPH-SEA
12h 55m1 stop
Icelandair Logo
7:00 pm - 9:45 pmSEA-CPH
17h 45m1 stop
$491Icelandair
Find Deal
Thu, Oct 16 - Thu, Oct 23
Icelandair Logo
10:35 pm - 8:40 pmCPH-SEA
31h 05m1 stop
Icelandair Logo
3:35 pm - 8:35 pmSEA-CPH
21h 00m1 stop
$492Icelandair
Find Deal
Sat, Oct 18 - Wed, Oct 29
British Airways Logo
9:45 pm - 4:54 pmCPH-SEA
28h 09m2 stops
British Airways Logo
5:48 am - 11:45 amSEA-CPH
20h 57m2 stops
$524British Airways
Find Deal
Mon, Oct 20 - Sat, Nov 8
American Airlines Logo
10:55 am - 12:27 amCPH-SEA
22h 32m2 stops
American Airlines Logo
11:42 am - 1:30 pmSEA-CPH
16h 48m2 stops
$525American Airlines
Find Deal
Tue, Oct 21 - Sun, Nov 9
British Airways Logo
9:45 pm - 8:46 pmCPH-SEA
32h 01m2 stops
British Airways Logo
11:42 am - 5:25 pmSEA-CPH
20h 43m2 stops
$528British Airways
Find Deal
Mon, Oct 20 - Mon, Nov 10
American Airlines Logo
10:35 am - 11:13 pmCPH-SEA
20h 38m2 stops
American Airlines Logo
2:20 pm - 5:35 pmSEA-CPH
18h 15m2 stops
$532American Airlines
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Fri, Oct 31 - Fri, Nov 7
Scandinavian Airlines Logo
1:10 pm - 2:00 pmCPH-SEA
9h 50mnonstop
Scandinavian Airlines Logo
4:20 pm - 10:50 amSEA-CPH
9h 30mnonstop
$578Scandinavian Airlines
Find Deal
Wed, Oct 15 - Sun, Oct 19
Scandinavian Airlines Logo
1:10 pm - 2:00 pmCPH-SEA
9h 50mnonstop
Scandinavian Airlines Logo
4:20 pm - 10:50 amSEA-CPH
9h 30mnonstop
$582Scandinavian Airlines
Find Deal
Wed, Oct 15 - Wed, Oct 22
Lufthansa Logo
6:05 am - 11:55 amCPH-SEA
14h 50m1 stop
Lufthansa Logo
2:20 pm - 10:15 pmSEA-CPH
22h 55m1 stop
$601Lufthansa
Find Deal
Sun, Oct 5 - Wed, Oct 15

Icelandair flights from Copenhagen to Seattle

Our best Icelandair deals on Copenhagen to Seattle flight tickets
Icelandair
Oct 15
CPH2:00 pmKastrup Copenhagen
12h 50m
1 stop
SEA5:50 pmSeattle/Tacoma Intl
Oct 22
SEA7:00 pmSeattle/Tacoma Intl
17h 45m
1 stop
CPH9:45 pmKastrup Copenhagen
$490
Find similar
Icelandair
Oct 16
CPH4:45 pmKastrup Copenhagen
12h 55m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 23
SEA7:00 pmSeattle/Tacoma Intl
17h 45m
1 stop
CPH9:45 pmKastrup Copenhagen
$491
Find similar
Icelandair
Oct 18
CPH10:35 pmKastrup Copenhagen
31h 05m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
Oct 29
SEA3:35 pmSeattle/Tacoma Intl
21h 00m
1 stop
CPH8:35 pmKastrup Copenhagen
$492
Find similar

United Airlines flights from Copenhagen to Seattle

Our best United Airlines deals on Copenhagen to Seattle flight tickets
United Airlines
Oct 7
CPH6:05 amKastrup Copenhagen
14h 50m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Oct 13
SEA8:42 amSeattle/Tacoma Intl
20h 33m
2 stops
CPH2:15 pmKastrup Copenhagen
$597
Find similar
United Airlines
Oct 1
CPH6:10 amKastrup Copenhagen
14h 45m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Oct 12
SEA8:30 amSeattle/Tacoma Intl
25h 15m
2 stops
CPH6:45 pmKastrup Copenhagen
$599
Find similar
United Airlines
Oct 1
CPH6:10 amKastrup Copenhagen
14h 45m
1 stop
SEA11:55 amSeattle/Tacoma Intl
Oct 15
SEA6:00 amSeattle/Tacoma Intl
23h 10m
2 stops
CPH2:10 pmKastrup Copenhagen
$601
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Copenhagen to Seattle 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 September 17, 2025.
Use the filters below to find and compare flights from Copenhagen to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

2:00 pm-5:50 pm

1 stop12h 50m

Seattle/Tacoma Intl

Wed 10/22

7:00 pm-9:45 pm

1 stop17h 45m

$490

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Thu 10/16

4:45 pm-8:40 pm

1 stop12h 55m

Seattle/Tacoma Intl

Thu 10/23

7:00 pm-9:45 pm

1 stop17h 45m

$491

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sat 10/18

10:35 pm-8:40 pm

1 stop31h 05m

Seattle/Tacoma Intl

Wed 10/29

3:35 pm-8:35 pm

1 stop21h 00m

$492

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 10/20

9:45 pm-4:54 pm

2 stops28h 09m

Seattle/Tacoma Intl

Sat 11/8

5:48 am-11:45 am

2 stops20h 57m

$524

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Tue 10/21

10:55 am-12:27 am

2 stops22h 32m

Seattle/Tacoma Intl

Sun 11/9

11:42 am-1:30 pm

2 stops16h 48m

$525

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Mon 10/20

9:45 pm-8:46 pm

2 stops32h 01m

Seattle/Tacoma Intl

Mon 11/10

11:42 am-5:25 pm

2 stops20h 43m

$528

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Fri 10/31

10:35 am-11:13 pm

2 stops20h 38m

Seattle/Tacoma Intl

Fri 11/7

2:20 pm-5:35 pm

2 stops18h 15m

$532

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

1:10 pm-2:00 pm

Nonstop9h 50m

Seattle/Tacoma Intl

Sun 10/19

4:20 pm-10:50 am

Nonstop9h 30m

$578

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Wed 10/15

1:10 pm-2:00 pm

Nonstop9h 50m

Seattle/Tacoma Intl

Wed 10/22

4:20 pm-10:50 am

Nonstop9h 30m

$582

CopenhagenSeattle

CPH - SEA

CPHSEA

Kastrup Copenhagen

Sun 10/5

6:05 am-11:55 am

1 stop14h 50m

Seattle/Tacoma Intl

Wed 10/15

2:20 pm-10:15 pm

1 stop22h 55m

$601

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 Seattle from

How to get the cheapest flight ticket from Copenhagen to Seattle

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 Copenhagen and Seattle?

What is the cheapest month to fly to Seattle?

In general, February is the cheapest month to fly from Copenhagen to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $459. If you don’t want to visit Seattle in February, then you should wait until January to fly from Copenhagen, when ticket prices are also cheap, with an average price of $494.

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

On average, the least expensive day to fly to Seattle from Copenhagen is on a Saturday. momondo users have found tickets for Saturday departures for as low as $649. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Copenhagen because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,047.

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

Flying to Seattle from Copenhagen in the evening is the least expensive time of day to depart. momondo users have found prices as low as $563 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $930. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Kastrup Copenhagen to Seattle/Tacoma Intl flight route?

Fly from Kastrup Copenhagen to Seattle/Tacoma Intl for the best Kastrup Copenhagen - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Copenhagen when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $621 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Copenhagen for as low as $577 on momondo.

What cabin class options are available on Kastrup Copenhagen to Seattle/Tacoma Intl flights?

There are 3 cabin classes available to choose from on Kastrup Copenhagen to Seattle/Tacoma Intl 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 Copenhagen to Seattle flights?

You could potentially save up to 26% on your flight if you consider stops on a Copenhagen to Seattle flight.

How have Copenhagen to Seattle flight prices changed over time?

As of September 2025, prices for Copenhagen to Seattle flights are approximately 15% cheaper when compared to flights at the same time last year.

When to book flights from Copenhagen to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Copenhagen to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Copenhagen to Seattle (CPH to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Copenhagen to Seattle

Best Price Found

$776

Fastest flight time

9h 50m

Direct flights

Mon, Thu and Sat

Airports in Seattle

1 airport
The best one-way flight to Seattle from Copenhagen in the past 72 hours is $776. The best round-trip flight deal from Copenhagen to Seattle found on momondo in the last 72 hours is $972.
The fastest flight from Copenhagen to Seattle takes 9h 50m
Direct flights go from Copenhagen to Seattle on Monday, Thursday and Saturday. There are no airlines offering direct flights.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Kastrup Copenhagen to Seattle/Tacoma Intl by plane?

    The straight-line distance from Kastrup Copenhagen to Seattle/Tacoma Intl is 4835.0 mi. Flights usually cover this in 9h 50m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport refresh daily.

  • How many operators does momondo search for flights from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Kastrup Copenhagen Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The required travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Copenhagen to Seattle?

  • What is the most popular airline from Copenhagen to Seattle?

Best airlines flying from Copenhagen to Seattle

Compare and see reviews for airlines that fly from Copenhagen to Seattle with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $430Free CancellationRating
7.0
545 reviews
Search Icelandair flights
American AirlinesPriceFrom $456Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
British AirwaysPriceFrom $463Free CancellationRating
6.7
7,367 reviews
Search British Airways flights
LufthansaPriceFrom $483Free CancellationRating
6.8
7,409 reviews
Search Lufthansa flights
DeltaPriceFrom $498Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $600Free CancellationRating
7.4
1,486 reviews
Search Scandinavian Airlines flights

  • Delta Flights From Copenhagen to Seattle

    The lowest priced Delta flight from Copenhagen to Seattle from the last 72 hours was $498. Generally, Delta has 3 flights on this route every week with an average price of $632. Delta is rated 7.9/10 by our users.

  • Scandinavian Airlines Flights From Copenhagen to Seattle

    Scandinavian Airlines is also a popular choice for this route. Scandinavian Airlines flight deals for Copenhagen to Seattle start from as low as $600 round-trip, depending on your selected dates, with average Scandinavian Airlines deals seen on momondo around $805. Scandinavian Airlines operates 3 flights to Seattle from Copenhagen in an average week. Users have rated it 7.4/10 across 1,486 reviews.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Kirkland
Tukwila
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Copenhagen to Seattle?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seattle from Copenhagen.

Can I find flights from Copenhagen to Seattle with flexible booking policies on momondo?

Flights from Copenhagen to Seattle with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Copenhagen to Seattle?

Once all potential Copenhagen to Seattle flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Copenhagen to Seattle right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Seattle, momondo offers a useful price alert feature which will track prices for flights to Seattle from Copenhagen and alert you when they change.

An easier way to manage your Seattle trip

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