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Cheap flights from Seattle to Denmark 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 Denmark 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.
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0 bags

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Find the cheapest flights from Seattle to Denmark

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
KLM Logo
1:45 pm - 10:40 pm
SEA
-
AAL
23h 55m
1 stop
KLM Logo
10:30 am - 4:30 pm
AAL
-
SEA
15h 00m
1 stop
$481KLM
Tue, Apr 14 - Wed, Apr 29
Delta Logo
4:36 pm - 5:45 pm
SEA
-
AAL
16h 09m
2 stops
Delta Logo
6:20 am - 4:30 pm
AAL
-
SEA
19h 10m
1 stop
$486Delta
Wed, Apr 15 - Wed, Apr 29
Delta Logo
5:30 pm - 5:45 pm
SEA
-
AAL
15h 15m
1 stop
Delta Logo
10:30 am - 10:39 pm
AAL
-
SEA
21h 09m
2 stops
$491Delta
Mon, Apr 27 - Mon, May 11
United Airlines Logo
5:20 pm - 1:30 pm
SEA
-
BLL
35h 10m
2 stops
United Airlines Logo
6:30 am - 12:10 pm
BLL
-
SEA
14h 40m
1 stop
$506United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
5:20 pm - 1:30 pm
SEA
-
BLL
35h 10m
2 stops
United Airlines Logo
6:30 am - 9:01 pm
BLL
-
SEA
23h 31m
3 stops
$510United Airlines
Sat, Feb 28 - Tue, Mar 3
Scandinavian Airlines Logo
7:10 am - 9:45 am
SEA
-
AAR
41h 35m
2 stops
Scandinavian Airlines Logo
6:40 pm - 10:10 pm
AAR
-
SEA
35h 30m
2 stops
$853Scandinavian Airlines
Thu, Mar 5 - Mon, Mar 9

KLM flights from Seattle to Denmark

Our best KLM deals on Seattle to Denmark flight tickets
KLM
Apr 14
SEA1:45 pmSeattle/Tacoma Intl
23h 55m
1 stop
AAL10:40 pmAalborg
Apr 29
AAL10:30 amAalborg
15h 00m
1 stop
SEA4:30 pmSeattle/Tacoma Intl
$481
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

Scandinavian Airlines flights from Seattle to Denmark

Our best Scandinavian Airlines deals on Seattle to Denmark flight tickets
Scandinavian Airlines
Apr 9
SEA10:58 pmSeattle/Tacoma Intl
22h 47m
1 stop
CPH6:45 amKastrup Copenhagen
May 22
CPH9:00 amKastrup Copenhagen
22h 29m
1 stop
SEA10:29 pmSeattle/Tacoma Intl
$451
Scandinavian Airlines
Mar 17
SEA5:40 pmSeattle/Tacoma Intl
19h 50m
1 stop
CPH9:30 pmKastrup Copenhagen
Mar 30
CPH9:00 amKastrup Copenhagen
22h 24m
1 stop
SEA10:24 pmSeattle/Tacoma Intl
$467
Scandinavian Airlines
Mar 28
SEA9:45 pmSeattle/Tacoma Intl
26h 45m
1 stop
CPH9:30 amKastrup Copenhagen
Apr 13
CPH9:00 amKastrup Copenhagen
22h 31m
1 stop
SEA10:31 pmSeattle/Tacoma Intl
$470

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Denmark 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 Denmark 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

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Tue 4/14

1:45 pm-10:40 pm

1 stop23h 55m

Aalborg

Wed 4/29

10:30 am-4:30 pm

1 stop15h 00m

$481

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Wed 4/15

4:36 pm-5:45 pm

2 stops16h 09m

Aalborg

Wed 4/29

6:20 am-4:30 pm

1 stop19h 10m

$486

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Mon 4/27

5:30 pm-5:45 pm

1 stop15h 15m

Aalborg

Mon 5/11

10:30 am-10:39 pm

2 stops21h 09m

$491

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

5:20 pm-1:30 pm

2 stops35h 10m

Billund

Tue 3/3

6:30 am-12:10 pm

1 stop14h 40m

$506

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

5:20 pm-1:30 pm

2 stops35h 10m

Billund

Tue 3/3

6:30 am-9:01 pm

3 stops23h 31m

$510

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Thu 3/5

7:10 am-9:45 am

2 stops41h 35m

Aarhus

Mon 3/9

6:40 pm-10:10 pm

2 stops35h 30m

$853

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 Denmark from

How to get the cheapest flight ticket from Seattle to Denmark

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 Denmark?

In general, February is the cheapest month to fly from Seattle to Denmark. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $447. If you aren’t able to travel to Denmark 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 Denmark?

The cheapest day to depart from Seattle to Denmark is on a Monday. Travelers who choose to depart for Denmark on a Monday will often find tickets for as low as $653. On the other hand, Saturday is the most expensive day to depart from Seattle because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $737.

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

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

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

You are more likely to see cheaper flights to Denmark from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $605 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from Seattle for as low as $615 on momondo.

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

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

You could potentially save up to 46% on your flight if you consider stops on a Seattle to Denmark flight.

Cheap Seattle to Denmark flight deals and tips

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

Best Price Found

$459

Fastest flight time

9h 15m

Direct flights

Mon, Wed, Sat and Sun

Airports in Denmark

19 airports
The best one-way flight to Denmark from Seattle in the past 72 hours is $459. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $559.
The fastest flight from Seattle to Denmark takes 9h 15m
Direct flights go from Seattle to Denmark on Monday, Wednesday, Saturday and Sunday. There are no airlines offering direct flights.
There are 19 airports in Denmark. From Seattle there are direct flights to Kastrup Copenhagen (CPH).
Search flight deals

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

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

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

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

    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 Denmark.

  • What documentation or ID do you need to fly to Denmark?

    The necessary travel and health documents for your Denmark 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 Denmark?

Best airlines flying from Seattle to Denmark

Compare and see reviews for airlines that fly from Seattle to Denmark 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
7,731 reviews
Search British Airways flights
KLMPriceFrom $524Free CancellationRating
7.7
1,451 reviews
Search KLM flights
DeltaPriceFrom $531Free CancellationRating
7.9
8,175 reviews
Search Delta flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,275 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,779 reviews
Search Lufthansa flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,708 reviews
Search Air Canada flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Denmark. momondo saves you time and could save you money on your trip.

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

All flight searches from Seattle to Denmark on momondo can be filtered to show those which offer flexible booking policies.

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

Once all potential Seattle to Denmark 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 Seattle to Denmark right now. Can momondo alert me if prices change?

Price alerts on flights to Denmark from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Denmark trip

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