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Cheap flights from Seattle to Denmark from $246

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 7/14. 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.
United Airlines Logo
8:10 am - 10:20 am
SEA
-
CPH
17h 10m
1 stop
United Airlines Logo
11:35 am - 10:16 pm
CPH
-
SEA
19h 41m
1 stop
$484United Airlines
Sat, Nov 7 - Sun, Nov 15
Multiple Airlines Logo
8:10 am - 9:20 am
SEA
-
CPH
17h 10m
1 stop
Multiple Airlines Logo
6:55 am - 12:10 pm
CPH
-
SEA
14h 15m
1 stop
$486Multiple Airlines
Wed, Oct 28 - Sat, Nov 7
Icelandair Logo
3:40 pm - 9:35 pm
SEA
-
BLL
20h 55m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
BLL
-
SEA
22h 10m
1 stop
$586Icelandair
Thu, May 28 - Mon, Jun 1
Air France Logo
6:50 pm - 10:25 pm
SEA
-
BLL
18h 35m
1 stop
Air France Logo
6:40 am - 11:15 am
BLL
-
SEA
13h 35m
1 stop
$674Air France
Mon, Jun 29 - Thu, Jul 9
Air France Logo
6:40 pm - 10:25 pm
SEA
-
BLL
18h 45m
1 stop
Air France Logo
6:00 am - 11:47 am
BLL
-
SEA
14h 47m
1 stop
$679Air France
Sun, Aug 2 - Sat, Sep 26
Delta Logo
9:10 am - 9:35 am
SEA
-
BLL
15h 25m
2 stops
Delta Logo
6:00 am - 11:37 am
BLL
-
SEA
14h 37m
1 stop
$684Delta
Thu, May 28 - Mon, Jun 1
Delta Logo
9:10 am - 9:35 am
SEA
-
BLL
15h 25m
2 stops
Delta Logo
6:00 am - 4:00 pm
BLL
-
SEA
19h 00m
2 stops
$690Delta
Thu, May 28 - Mon, Jun 1
Icelandair Logo
7:00 pm - 9:35 pm
SEA
-
BLL
17h 35m
1 stop
Icelandair Logo
10:35 pm - 11:45 am
BLL
-
SEA
22h 10m
1 stop
$720Icelandair
Sun, Jun 28 - Wed, Jul 8
Scandinavian Airlines Logo
3:55 pm - 11:55 am
SEA
-
AAL
11h 00m
1 stop
Scandinavian Airlines Logo
7:00 am - 7:52 pm
AAL
-
SEA
21h 52m
2 stops
$797Scandinavian Airlines
Sun, Aug 2 - Tue, Aug 18
Scandinavian Airlines Logo
3:55 pm - 11:55 am
SEA
-
AAL
11h 00m
1 stop
Scandinavian Airlines Logo
7:00 am - 7:52 pm
AAL
-
SEA
21h 52m
2 stops
$803Scandinavian Airlines
Sun, Aug 2 - Tue, Aug 18

Lufthansa flights from Seattle to Denmark

Our best Lufthansa deals on Seattle to Denmark flight tickets
Lufthansa
Aug 11
SEA6:50 pmSeattle/Tacoma Intl
12h 45m
1 stop
CPH4:35 pmKastrup Copenhagen
Aug 26
CPH8:40 amKastrup Copenhagen
17h 19m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$515
Lufthansa
Oct 13
SEA6:50 pmSeattle/Tacoma Intl
12h 45m
1 stop
CPH4:35 pmKastrup Copenhagen
Dec 5
CPH6:55 amKastrup Copenhagen
14h 15m
1 stop
SEA12:10 pmSeattle/Tacoma Intl
$524
Lufthansa
Oct 13
SEA6:50 pmSeattle/Tacoma Intl
12h 45m
1 stop
CPH4:35 pmKastrup Copenhagen
Dec 5
CPH8:55 amKastrup Copenhagen
22h 34m
2 stops
SEA10:29 pmSeattle/Tacoma Intl
$527

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Nov 7
SEA8:10 amSeattle/Tacoma Intl
17h 10m
1 stop
CPH10:20 amKastrup Copenhagen
Nov 15
CPH11:35 amKastrup Copenhagen
19h 41m
1 stop
SEA10:16 pmSeattle/Tacoma Intl
$484
United Airlines
Aug 16
SEA5:26 pmSeattle/Tacoma Intl
32h 24m
2 stops
CPH10:50 amKastrup Copenhagen
Aug 22
CPH12:45 pmKastrup Copenhagen
29h 51m
2 stops
SEA9:36 amSeattle/Tacoma Intl
$498
United Airlines
Aug 12
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Aug 26
CPH8:40 amKastrup Copenhagen
17h 19m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$500

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 May 16, 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 - CPH

SEACPH

Seattle/Tacoma Intl

Sat 11/7

8:10 am-10:20 am

1 stop17h 10m

Kastrup Copenhagen

Sun 11/15

11:35 am-10:16 pm

1 stop19h 41m

$484

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 10/28

8:10 am-9:20 am

1 stop17h 10m

Kastrup Copenhagen

Sat 11/7

6:55 am-12:10 pm

1 stop14h 15m

$486

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 5/28

3:40 pm-9:35 pm

1 stop20h 55m

Billund

Mon 6/1

10:35 pm-11:45 am

1 stop22h 10m

$586

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

6:50 pm-10:25 pm

1 stop18h 35m

Billund

Thu 7/9

6:40 am-11:15 am

1 stop13h 35m

$674

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 8/2

6:40 pm-10:25 pm

1 stop18h 45m

Billund

Sat 9/26

6:00 am-11:47 am

1 stop14h 47m

$679
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 5/28

9:10 am-9:35 am

2 stops15h 25m

Billund

Mon 6/1

6:00 am-11:37 am

1 stop14h 37m

$684

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 5/28

9:10 am-9:35 am

2 stops15h 25m

Billund

Mon 6/1

6:00 am-4:00 pm

2 stops19h 00m

$690

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 6/28

7:00 pm-9:35 pm

1 stop17h 35m

Billund

Wed 7/8

10:35 pm-11:45 am

1 stop22h 10m

$720

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 8/2

3:55 pm-11:55 am

1 stop11h 00m

Aalborg

Tue 8/18

7:00 am-7:52 pm

2 stops21h 52m

$797

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 8/2

3:55 pm-11:55 am

1 stop11h 00m

Aalborg

Tue 8/18

7:00 am-7:52 pm

2 stops21h 52m

$803

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 $650. 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 $758.

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 $604 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 $559 on momondo.

Can stopping save me money on Seattle to Denmark flights?

You could potentially save up to 53% 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

$579

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 $579. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $748.
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
1,586 reviews
Search Air France flights
SWISSPriceFrom $371Free CancellationRating
7.5
1,946 reviews
Search SWISS flights
IcelandairPriceFrom $419Free CancellationRating
7.0
654 reviews
Search Icelandair flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,453 reviews
Search Delta flights
Scandinavian AirlinesPriceFrom $504Free CancellationRating
7.4
1,778 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,982 reviews
Search British Airways flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,004 reviews
Search Lufthansa flights
Air CanadaPriceFrom $515Free CancellationRating
7.1
11,055 reviews
Search Air Canada flights
KLMPriceFrom $528Free CancellationRating
7.8
1,517 reviews
Search KLM flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,730 reviews
Search United Airlines 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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