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Cheap flights from Seattle to Denmark from $265

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 3/11. 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

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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
7:00 pm - 3:55 pm
SEA
-
CPH
11h 55m
1 stop
Icelandair Logo
2:00 pm - 5:55 pm
CPH
-
SEA
12h 55m
1 stop
$413Icelandair
Thu, Apr 23 - Tue, Apr 28
Icelandair Logo
2:35 pm - 5:20 am
SEA
-
CPH
29h 45m
1 stop
Icelandair Logo
12:55 pm - 5:00 pm
CPH
-
SEA
13h 05m
1 stop
$416Icelandair
Mon, Feb 16 - Tue, Mar 3
Delta Logo
5:30 am - 2:35 pm
SEA
-
BLL
24h 05m
2 stops
Delta Logo
6:30 am - 1:20 pm
BLL
-
SEA
15h 50m
1 stop
$478Delta
Tue, Feb 17 - Wed, Feb 25
United Airlines Logo
12:15 pm - 1:30 pm
SEA
-
BLL
40h 15m
2 stops
United Airlines Logo
6:30 am - 12:10 pm
BLL
-
SEA
14h 40m
1 stop
$505United Airlines
Sat, Feb 28 - Tue, Mar 3
United Airlines Logo
7:29 pm - 6:10 pm
SEA
-
BLL
37h 41m
2 stops
United Airlines Logo
6:30 am - 9:01 pm
BLL
-
SEA
23h 31m
3 stops
$509United Airlines
Sat, Feb 28 - Tue, Mar 3
Delta Logo
6:10 am - 11:20 am
SEA
-
BLL
20h 10m
2 stops
Delta Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$535Delta
Fri, Feb 20 - Sun, Mar 1
Scandinavian Airlines Logo
9:50 am - 9:20 am
SEA
-
AAL
38h 30m
2 stops
Scandinavian Airlines Logo
5:40 pm - 1:45 pm
AAL
-
SEA
29h 05m
1 stop
$779Scandinavian Airlines
Sat, May 16 - Mon, May 25
KLM Logo
5:30 pm - 10:00 am
SEA
-
AAL
31h 30m
1 stop
KLM Logo
6:20 am - 11:42 am
AAL
-
SEA
14h 22m
1 stop
$805KLM
Sat, May 16 - Mon, May 25
Scandinavian Airlines Logo
9:50 am - 7:50 am
SEA
-
AAL
37h 00m
2 stops
Scandinavian Airlines Logo
6:50 pm - 1:45 pm
AAL
-
SEA
27h 55m
1 stop
$806Scandinavian Airlines
Sat, May 16 - Mon, May 25
KLM Logo
1:45 pm - 10:40 pm
SEA
-
AAL
23h 55m
1 stop
KLM Logo
6:20 am - 11:42 am
AAL
-
SEA
14h 22m
1 stop
$873KLM
Sat, May 16 - Mon, May 25

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Feb 28
SEA12:15 pmSeattle/Tacoma Intl
40h 15m
2 stops
BLL1:30 pmBillund
Mar 3
BLL6:30 amBillund
14h 40m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$505
United Airlines
Apr 1
SEA6:50 pmSeattle/Tacoma Intl
14h 50m
1 stop
CPH6:40 pmKastrup Copenhagen
Apr 14
CPH12:45 pmKastrup Copenhagen
36h 52m
2 stops
SEA4:37 pmSeattle/Tacoma Intl
$509
United Airlines
Apr 2
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Apr 8
CPH12:45 pmKastrup Copenhagen
38h 15m
2 stops
SEA6:00 pmSeattle/Tacoma Intl
$511

Icelandair flights from Seattle to Denmark

Our best Icelandair deals on Seattle to Denmark flight tickets
Icelandair
Apr 23
SEA7:00 pmSeattle/Tacoma Intl
11h 55m
1 stop
CPH3:55 pmKastrup Copenhagen
Apr 28
CPH2:00 pmKastrup Copenhagen
12h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$413
Icelandair
Feb 16
SEA2:35 pmSeattle/Tacoma Intl
29h 45m
1 stop
CPH5:20 amKastrup Copenhagen
Mar 3
CPH12:55 pmKastrup Copenhagen
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$416
Icelandair
Apr 14
SEA7:00 pmSeattle/Tacoma Intl
11h 55m
1 stop
CPH3:55 pmKastrup Copenhagen
Apr 20
CPH4:55 pmKastrup Copenhagen
12h 45m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$421

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 January 28, 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

Thu 4/23

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Tue 4/28

2:00 pm-5:55 pm

1 stop12h 55m

$413

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-5:20 am

1 stop29h 45m

Kastrup Copenhagen

Tue 3/3

12:55 pm-5:00 pm

1 stop13h 05m

$416

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 2/17

5:30 am-2:35 pm

2 stops24h 05m

Billund

Wed 2/25

6:30 am-1:20 pm

1 stop15h 50m

$478

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

12:15 pm-1:30 pm

2 stops40h 15m

Billund

Tue 3/3

6:30 am-12:10 pm

1 stop14h 40m

$505

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

7:29 pm-6:10 pm

2 stops37h 41m

Billund

Tue 3/3

6:30 am-9:01 pm

3 stops23h 31m

$509

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

6:10 am-11:20 am

2 stops20h 10m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$535

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

9:50 am-9:20 am

2 stops38h 30m

Aalborg

Mon 5/25

5:40 pm-1:45 pm

1 stop29h 05m

$779

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

5:30 pm-10:00 am

1 stop31h 30m

Aalborg

Mon 5/25

6:20 am-11:42 am

1 stop14h 22m

$805

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

9:50 am-7:50 am

2 stops37h 00m

Aalborg

Mon 5/25

6:50 pm-1:45 pm

1 stop27h 55m

$806

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

1:45 pm-10:40 pm

1 stop23h 55m

Aalborg

Mon 5/25

6:20 am-11:42 am

1 stop14h 22m

$873

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, October 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 $516. If you aren’t able to travel to Denmark during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $531.

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 $656. 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 $738.

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 $614 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 $589 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

$506

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 $506. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $537.
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
1,356 reviews
Search Finnair flights
Air FrancePriceFrom $418Free CancellationRating
7.4
1,528 reviews
Search Air France flights
IcelandairPriceFrom $422Free CancellationRating
7.1
605 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $497Free CancellationRating
7.3
1,672 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,705 reviews
Search British Airways flights
KLMPriceFrom $524Free CancellationRating
7.7
1,443 reviews
Search KLM flights
DeltaPriceFrom $531Free CancellationRating
7.9
8,124 reviews
Search Delta flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,752 reviews
Search Lufthansa flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,213 reviews
Search United Airlines flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,666 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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