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Cheap flights from Seattle to Denmark from $218

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 8/24. 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
1 adult, Economy, 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.
Delta Logo
9:40 am - 2:35 pm
SEA
-
BLL
19h 55m
2 stops
Delta Logo
6:30 am - 3:21 pm
BLL
-
SEA
17h 51m
1 stop
$556Delta
Tue, Nov 3 - Fri, Nov 13
Multiple Airlines Logo
2:35 pm - 9:40 am
SEA
-
BLL
34h 05m
1 stop
Multiple Airlines Logo
6:30 am - 3:21 pm
BLL
-
SEA
17h 51m
1 stop
$563Multiple Airlines
Tue, Nov 3 - Fri, Nov 13
Delta Logo
9:40 am - 2:35 pm
SEA
-
BLL
19h 55m
2 stops
Delta Logo
6:30 am - 7:23 pm
BLL
-
SEA
21h 53m
2 stops
$566Delta
Tue, Nov 3 - Fri, Nov 13
Lufthansa Logo
10:10 am - 10:20 am
SEA
-
CPH
39h 10m
2 stops
Lufthansa Logo
11:35 am - 2:37 pm
CPH
-
SEA
36h 02m
2 stops
$594Lufthansa
Tue, Nov 10 - Sun, Nov 29
Icelandair Logo
7:00 pm - 3:55 pm
SEA
-
CPH
11h 55m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
CPH
-
SEA
22h 10m
1 stop
$596Icelandair
Sun, Jun 28 - Tue, Aug 4
Icelandair Logo
11:25 pm - 9:45 pm
SEA
-
CPH
13h 20m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
CPH
-
SEA
22h 10m
1 stop
$597Icelandair
Tue, Jul 7 - Tue, Jul 14
Air France Logo
1:50 pm - 1:40 pm
SEA
-
AAL
14h 50m
1 stop
Air France Logo
10:30 am - 11:37 am
AAL
-
SEA
34h 07m
1 stop
$642Air France
Sun, Aug 2 - Tue, Aug 18
Air France Logo
1:30 pm - 4:25 pm
SEA
-
BLL
17h 55m
1 stop
Air France Logo
6:00 am - 11:33 am
BLL
-
SEA
14h 33m
1 stop
$672Air France
Mon, Jun 29 - Thu, Jul 9
Scandinavian Airlines Logo
3:55 pm - 12:00 pm
SEA
-
AAR
11h 05m
1 stop
Scandinavian Airlines Logo
12:30 pm - 8:05 am
AAR
-
SEA
52h 35m
2 stops
$962Scandinavian Airlines
Sun, Jul 5 - Thu, Jul 9
Scandinavian Airlines Logo
2:30 pm - 2:50 pm
SEA
-
AAR
39h 20m
2 stops
Scandinavian Airlines Logo
6:05 pm - 10:26 pm
AAR
-
SEA
37h 21m
2 stops
$980Scandinavian Airlines
Tue, Oct 13 - Sat, Oct 17

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Aug 14
SEA6:50 pmSeattle/Tacoma Intl
19h 40m
1 stop
CPH11:30 pmKastrup Copenhagen
Aug 24
CPH12:15 pmKastrup Copenhagen
36h 24m
2 stops
SEA3:39 pmSeattle/Tacoma Intl
$604
United Airlines
Aug 19
SEA6:50 pmSeattle/Tacoma Intl
19h 40m
1 stop
CPH11:30 pmKastrup Copenhagen
Sep 8
CPH12:40 pmKastrup Copenhagen
13h 19m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$621
United Airlines
Aug 13
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Aug 22
CPH6:40 amKastrup Copenhagen
14h 15m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$622

Icelandair flights from Seattle to Denmark

Our best Icelandair deals on Seattle to Denmark flight tickets
Icelandair
Jun 28
SEA7:00 pmSeattle/Tacoma Intl
11h 55m
1 stop
CPH3:55 pmKastrup Copenhagen
Aug 4
CPH10:35 pmKastrup Copenhagen
22h 10m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$596
Icelandair
Jul 7
SEA11:25 pmSeattle/Tacoma Intl
13h 20m
1 stop
CPH9:45 pmKastrup Copenhagen
Jul 14
CPH10:35 pmKastrup Copenhagen
22h 10m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$597
Icelandair
Jul 14
SEA3:40 pmSeattle/Tacoma Intl
12h 15m
1 stop
CPH12:55 pmKastrup Copenhagen
Aug 25
CPH7:20 amKastrup Copenhagen
13h 25m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$598

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 June 4, 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

Cheapest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 11/3

9:40 am-2:35 pm

2 stops19h 55m

Billund

Fri 11/13

6:30 am-3:21 pm

1 stop17h 51m

$556

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 11/3

2:35 pm-9:40 am

1 stop34h 05m

Billund

Fri 11/13

6:30 am-3:21 pm

1 stop17h 51m

$563

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 11/3

9:40 am-2:35 pm

2 stops19h 55m

Billund

Fri 11/13

6:30 am-7:23 pm

2 stops21h 53m

$566

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 11/10

10:10 am-10:20 am

2 stops39h 10m

Kastrup Copenhagen

Sun 11/29

11:35 am-2:37 pm

2 stops36h 02m

$594

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 6/28

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Tue 8/4

10:35 pm-11:45 am

1 stop22h 10m

$596

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 7/7

11:25 pm-9:45 pm

1 stop13h 20m

Kastrup Copenhagen

Tue 7/14

10:35 pm-11:45 am

1 stop22h 10m

$597

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 8/2

1:50 pm-1:40 pm

1 stop14h 50m

Aalborg

Tue 8/18

10:30 am-11:37 am

1 stop34h 07m

$642
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

1:30 pm-4:25 pm

1 stop17h 55m

Billund

Thu 7/9

6:00 am-11:33 am

1 stop14h 33m

$672

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Sun 7/5

3:55 pm-12:00 pm

1 stop11h 05m

Aarhus

Thu 7/9

12:30 pm-8:05 am

2 stops52h 35m

$962

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Tue 10/13

2:30 pm-2:50 pm

2 stops39h 20m

Aarhus

Sat 10/17

6:05 pm-10:26 pm

2 stops37h 21m

$980

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, November 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 $212. If you aren’t able to travel to Denmark during the month of November, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $332.

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 $654. On the other hand, Thursday 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 $777.

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 from Seattle 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 $606 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 $562 on momondo.

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

There are 3 cabin classes available to choose from on Seattle 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 49% 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

$590

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 $590. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $775.
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

Frequently asked questions about flying from Seattle to Denmark

  • 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 $332Free CancellationRating
7.4
1,595 reviews
Search Air France flights
SWISSPriceFrom $371Free CancellationRating
7.5
1,964 reviews
Search SWISS flights
IcelandairPriceFrom $419Free CancellationRating
7.0
665 reviews
Search Icelandair flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,398 reviews
Search Delta flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,123 reviews
Search Air Canada flights
Scandinavian AirlinesPriceFrom $499Free CancellationRating
7.4
1,804 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
8,020 reviews
Search British Airways flights
United AirlinesPriceFrom $509Free CancellationRating
7.4
9,771 reviews
Search United Airlines flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,036 reviews
Search Lufthansa flights
KLMPriceFrom $528Free CancellationRating
7.8
1,524 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.

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Find better results for your trip to Denmark

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