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Cheap flights from Seattle to Denmark from $286

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 1/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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.
Icelandair Logo
2:35 pm - 11:45 amSEA-CPH
12h 10m1 stop
Icelandair Logo
8:50 pm - 6:00 pmCPH-SEA
29h 10m1 stop
$447Icelandair
Find Deal
Fri, Mar 6 - Mon, Mar 23
Icelandair Logo
7:00 pm - 12:55 pmSEA-CPH
32h 55m1 stop
Icelandair Logo
10:35 pm - 8:45 pmCPH-SEA
31h 10m1 stop
$449Icelandair
Find Deal
Fri, May 1 - Sun, May 31
Scandinavian Airlines Logo
2:05 pm - 3:25 pmSEA-CPH
16h 20m1 stop
Scandinavian Airlines Logo
12:45 pm - 7:00 pmCPH-SEA
15h 15m1 stop
$465Scandinavian Airlines
Find Deal
Tue, Dec 9 - Sat, Dec 13
Scandinavian Airlines Logo
7:20 am - 10:25 amSEA-CPH
18h 05m1 stop
Scandinavian Airlines Logo
12:45 pm - 7:00 pmCPH-SEA
15h 15m1 stop
$475Scandinavian Airlines
Find Deal
Sun, Dec 7 - Mon, Dec 15
Lufthansa Logo
2:00 pm - 6:15 pmSEA-CPH
19h 15m1 stop
Lufthansa Logo
6:50 am - 12:10 pmCPH-SEA
14h 20m1 stop
$503Lufthansa
Find Deal
Tue, Dec 2 - Tue, Dec 9
British Airways Logo
1:33 pm - 3:25 pmSEA-CPH
16h 52m2 stops
British Airways Logo
10:20 am - 9:46 pmCPH-SEA
20h 26m2 stops
$520British Airways
Find Deal
Tue, Apr 21 - Wed, Apr 29
Lufthansa Logo
3:10 pm - 5:35 pmSEA-CPH
17h 25m1 stop
Lufthansa Logo
6:50 am - 12:10 pmCPH-SEA
14h 20m1 stop
$524Lufthansa
Find Deal
Sun, Nov 16 - Fri, Nov 21
Delta Logo
2:05 pm - 3:30 pmSEA-BLL
16h 25m1 stop
Delta Logo
2:30 pm - 10:25 pmBLL-SEA
40h 55m2 stops
$530Delta
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Fri, Dec 5 - Sun, Dec 14
Delta Logo
9:25 am - 1:45 pmSEA-CPH
19h 20m2 stops
Delta Logo
1:55 pm - 8:24 pmCPH-SEA
15h 29m1 stop
$530Delta
Find Deal
Fri, Jan 16 - Mon, May 18
British Airways Logo
8:20 pm - 4:20 pmSEA-BLL
35h 00m1 stop
British Airways Logo
4:25 pm - 11:35 amBLL-SEA
28h 10m1 stop
$1,858British Airways
Find Deal
Sat, May 2 - Sat, Jun 6

Icelandair flights from Seattle to Denmark

Our best Icelandair deals on Seattle to Denmark flight tickets
Icelandair
Mar 6
SEA2:35 pmSeattle/Tacoma Intl
12h 10m
1 stop
CPH11:45 amKastrup Copenhagen
Mar 23
CPH8:50 pmKastrup Copenhagen
29h 10m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$447
Find similar
Icelandair
May 1
SEA7:00 pmSeattle/Tacoma Intl
32h 55m
1 stop
CPH12:55 pmKastrup Copenhagen
May 31
CPH10:35 pmKastrup Copenhagen
31h 10m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
$449
Find similar
Icelandair
May 3
SEA3:45 pmSeattle/Tacoma Intl
21h 00m
1 stop
CPH9:45 pmKastrup Copenhagen
May 17
CPH7:20 amKastrup Copenhagen
22h 25m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
$460
Find similar

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Mar 5
SEA9:19 amSeattle/Tacoma Intl
18h 06m
2 stops
CPH12:25 pmKastrup Copenhagen
Mar 19
CPH7:05 amKastrup Copenhagen
14h 05m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$540
Find similar
United Airlines
Nov 19
SEA6:03 amSeattle/Tacoma Intl
21h 22m
2 stops
CPH12:25 pmKastrup Copenhagen
Nov 22
CPH2:30 pmKastrup Copenhagen
34h 45m
2 stops
SEA4:15 pmSeattle/Tacoma Intl
$547
Find similar
United Airlines
Nov 14
SEA12:35 pmSeattle/Tacoma Intl
20h 40m
2 stops
CPH6:15 pmKastrup Copenhagen
Dec 2
CPH1:10 pmKastrup Copenhagen
33h 10m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$556
Find similar

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 November 6, 2025.
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

Fri 3/6

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Mon 3/23

8:50 pm-6:00 pm

1 stop29h 10m

$447

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 5/1

7:00 pm-12:55 pm

1 stop32h 55m

Kastrup Copenhagen

Sun 5/31

10:35 pm-8:45 pm

1 stop31h 10m

$449

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 12/9

2:05 pm-3:25 pm

1 stop16h 20m

Kastrup Copenhagen

Sat 12/13

12:45 pm-7:00 pm

1 stop15h 15m

$465

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 12/7

7:20 am-10:25 am

1 stop18h 05m

Kastrup Copenhagen

Mon 12/15

12:45 pm-7:00 pm

1 stop15h 15m

$475

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 12/2

2:00 pm-6:15 pm

1 stop19h 15m

Kastrup Copenhagen

Tue 12/9

6:50 am-12:10 pm

1 stop14h 20m

$503

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 4/21

1:33 pm-3:25 pm

2 stops16h 52m

Kastrup Copenhagen

Wed 4/29

10:20 am-9:46 pm

2 stops20h 26m

$520

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 11/16

3:10 pm-5:35 pm

1 stop17h 25m

Kastrup Copenhagen

Fri 11/21

6:50 am-12:10 pm

1 stop14h 20m

$524

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 12/5

2:05 pm-3:30 pm

1 stop16h 25m

Billund

Sun 12/14

2:30 pm-10:25 pm

2 stops40h 55m

$530

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 1/16

9:25 am-1:45 pm

2 stops19h 20m

Kastrup Copenhagen

Mon 5/18

1:55 pm-8:24 pm

1 stop15h 29m

$530

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 5/2

8:20 pm-4:20 pm

1 stop35h 00m

Billund

Sat 6/6

4:25 pm-11:35 am

1 stop28h 10m

$1,858

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 $544. If you aren’t able to travel to Denmark during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $573.

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

The cheapest day to depart from Seattle to Denmark is on a Tuesday. Travelers who choose to depart for Denmark on a Tuesday will often find tickets for as low as $646. 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 $746.

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

Flying to Denmark 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. In the morning is when there is more demand to fly to Denmark, so prices are often more expensive at around $782 per ticket.

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 $628 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 $576 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 44% 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

$456

Direct flights

None
The best one-way flight to Denmark from Seattle in the past 72 hours is $456. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $568.
There are no direct flights from Seattle to Denmark. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kastrup Copenhagen Airport.
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
Air FrancePriceFrom $418Free CancellationRating
7.4
1,484 reviews
Search Air France flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,001 reviews
Search Delta flights
IcelandairPriceFrom $424Free CancellationRating
7.1
572 reviews
Search Icelandair flights
American AirlinesPriceFrom $492Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $495Free CancellationRating
7.4
1,561 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $504Free CancellationRating
7.6
1,335 reviews
Search Finnair flights
British AirwaysPriceFrom $528Free CancellationRating
6.7
7,500 reviews
Search British Airways flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,415 reviews
Search Air Canada flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,004 reviews
Search United Airlines flights
KLMPriceFrom $582Free CancellationRating
7.7
1,405 reviews
Search KLM 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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