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Cheap flights from Seattle to Denmark from $202

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 8/25. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
1:30 pm - 6:45 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
20h 15m1 stop Paris Charles de Gaulle
Delta Logo
9:00 am - 8:20 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 20m1 stop New York John F Kennedy Intl
$491Delta
Sun, Aug 23 - Wed, Sep 2
Delta Logo
1:30 pm - 6:45 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
20h 15m1 stop Paris Charles de Gaulle
Delta Logo
9:00 am - 11:20 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
23h 20m1 stop New York John F Kennedy Intl
$491Delta
Thu, Aug 27 - Sat, Sep 5
Scandinavian Airlines Logo
3:55 pm - 10:10 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
9h 15mnonstop
Scandinavian Airlines Logo
1:05 pm - 1:45 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
9h 40mnonstop
$491Scandinavian Airlines
Sun, Oct 4 - Fri, Oct 9
Multiple Airlines Logo
1:30 pm - 1:05 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
14h 35m1 stop Paris Charles de Gaulle
Multiple Airlines Logo
1:55 pm - 10:00 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
17h 05m1 stop Minneapolis St Paul
$491Multiple Airlines
Sun, Aug 23 - Mon, Aug 31
Scandinavian Airlines Logo
3:55 pm - 10:10 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
9h 15mnonstop
Scandinavian Airlines Logo
1:05 pm - 1:45 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
9h 40mnonstop
$493Scandinavian Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
7:00 am - 9:05 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
18h 05m2 stops Chicago O'Hare Intl Toronto Pearson Intl
United Airlines Logo
11:35 am - 11:07 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 32m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$496United Airlines
Thu, Oct 29 - Wed, Nov 4
United Airlines Logo
11:15 pm - 9:05 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
25h 50m2 stops Newark Toronto Pearson Intl
United Airlines Logo
11:35 am - 11:07 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
20h 32m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$496United Airlines
Wed, Oct 28 - Wed, Nov 4
Multiple Airlines Logo
6:50 pm - 4:25 pmSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
12h 35m1 stop Munich Franz Josef Strauss
Multiple Airlines Logo
11:35 am - 8:59 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
18h 24m1 stop Toronto Pearson Intl
$497Multiple Airlines
Sun, Oct 11 - Wed, Nov 25
Air Canada Logo
7:05 pm - 10:05 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
54h 00m2 stops Vancouver Intl Toronto Pearson Intl
Air Canada Logo
8:55 am - 6:22 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
18h 27m2 stops Munich Franz Josef Strauss Vancouver Intl
$498Air Canada
Thu, Nov 12 - Thu, Nov 26
Air Canada Logo
7:45 am - 10:20 amSEA  Seattle/Tacoma Intl-CPH Kastrup Copenhagen
17h 35m1 stop Toronto Pearson Intl
Air Canada Logo
8:55 am - 6:22 pmCPH  Kastrup Copenhagen-SEA Seattle/Tacoma Intl
18h 27m2 stops Munich Franz Josef Strauss Vancouver Intl
$498Air Canada
Thu, Dec 3 - Tue, Dec 8

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Lufthansa flights from Seattle to Denmark

Our best Lufthansa deals on Seattle to Denmark flight tickets
Lufthansa
Nov 25
SEA2:50 pmSeattle/Tacoma Intl
23h 20m
1 stop
CPH11:10 pmKastrup Copenhagen
Dec 2
CPH6:20 pmKastrup Copenhagen
48h 07m
2 stops
SEA9:27 amSeattle/Tacoma Intl
$529
Lufthansa
Nov 25
SEA2:50 pmSeattle/Tacoma Intl
18h 35m
2 stops
CPH6:25 pmKastrup Copenhagen
Dec 6
CPH11:35 amKastrup Copenhagen
36h 02m
2 stops
SEA2:37 pmSeattle/Tacoma Intl
$535
Lufthansa
Aug 16
SEA6:50 pmSeattle/Tacoma Intl
19h 40m
1 stop
CPH11:30 pmKastrup Copenhagen
Aug 24
CPH6:45 pmKastrup Copenhagen
26h 10m
1 stop
SEA11:55 amSeattle/Tacoma Intl
$538

Air France flights from Seattle to Denmark

Our best Air France deals on Seattle to Denmark flight tickets
Air France
Oct 13
SEA7:15 amSeattle/Tacoma Intl
14h 30m
1 stop
CPH6:45 amKastrup Copenhagen
Oct 18
CPH6:05 amKastrup Copenhagen
14h 10m
1 stop
SEA11:15 amSeattle/Tacoma Intl
$552
Air France
Aug 22
SEA1:50 pmSeattle/Tacoma Intl
12h 05m
1 stop
BLL10:55 amBillund
Aug 31
BLL10:15 amBillund
15h 12m
1 stop
SEA4:27 pmSeattle/Tacoma Intl
$566
Air France
Aug 21
SEA1:50 pmSeattle/Tacoma Intl
19h 05m
1 stop
BLL5:55 pmBillund
Aug 31
BLL10:15 amBillund
15h 12m
1 stop
SEA4:27 pmSeattle/Tacoma Intl
$574

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 August 7, 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

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 8/23

1:30 pm-6:45 pm

1 stop20h 15m

Kastrup Copenhagen

Wed 9/2

9:00 am-8:20 pm

1 stop20h 20m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 8/27

1:30 pm-6:45 pm

1 stop20h 15m

Kastrup Copenhagen

Sat 9/5

9:00 am-11:20 pm

1 stop23h 20m

$491
Quickest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 10/4

3:55 pm-10:10 am

Nonstop9h 15m

Kastrup Copenhagen

Fri 10/9

1:05 pm-1:45 pm

Nonstop9h 40m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 8/23

1:30 pm-1:05 pm

1 stop14h 35m

Kastrup Copenhagen

Mon 8/31

1:55 pm-10:00 pm

1 stop17h 05m

$491

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 9/22

3:55 pm-10:10 am

Nonstop9h 15m

Kastrup Copenhagen

Tue 9/29

1:05 pm-1:45 pm

Nonstop9h 40m

$493

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 10/29

7:00 am-9:05 am

2 stops18h 05m

Kastrup Copenhagen

Wed 11/4

11:35 am-11:07 pm

2 stops20h 32m

$496

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Wed 10/28

11:15 pm-9:05 am

2 stops25h 50m

Kastrup Copenhagen

Wed 11/4

11:35 am-11:07 pm

2 stops20h 32m

$496

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 10/11

6:50 pm-4:25 pm

1 stop12h 35m

Kastrup Copenhagen

Wed 11/25

11:35 am-8:59 pm

1 stop18h 24m

$497

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 11/12

7:05 pm-10:05 am

2 stops54h 00m

Kastrup Copenhagen

Thu 11/26

8:55 am-6:22 pm

2 stops18h 27m

$498

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Thu 12/3

7:45 am-10:20 am

1 stop17h 35m

Kastrup Copenhagen

Tue 12/8

8:55 am-6:22 pm

2 stops18h 27m

$498

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 $462. If you aren’t able to travel to Denmark during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $515.

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

The cheapest day to depart from Seattle to Denmark is on a Sunday. Travelers who choose to depart for Denmark on a Sunday will often find tickets for as low as $746. 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 $829.

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 $623 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 $613 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 58% 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

$527

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 $527. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $621.
The fastest flight from Seattle to Denmark takes 9h 15m
Direct flights go from Seattle to Denmark on Monday, Wednesday, Saturday and Sunday. The only airline offering direct flights is Scandinavian Airlines.
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
SWISSPriceFrom $371Free CancellationRating
7.5
2,028 reviews
Search SWISS flights
IcelandairPriceFrom $419Free CancellationRating
7.0
721 reviews
Search Icelandair flights
DeltaPriceFrom $421Free CancellationRating
7.8
8,506 reviews
Search Delta flights
Air FrancePriceFrom $469Free CancellationRating
7.5
1,637 reviews
Search Air France flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,437 reviews
Search Air Canada flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
10,083 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $503Free CancellationRating
7.4
1,929 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
8,151 reviews
Search British Airways flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,177 reviews
Search Lufthansa flights
KLMPriceFrom $540Free CancellationRating
7.8
1,555 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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