What is the cheapest airline that flies from Seattle/Tacoma Intl to Denmark?

Icelandair, KLM, and Air France are the most popular carriers operating from Seattle/Tacoma Intl to Denmark

What airlines fly to Denmark?

Scandinavian Airlines, Icelandair and Delta are the top three most popular airlines that fly to Denmark from Seattle according to our data. Scandinavian Airlines is the first choice among our users, with 47% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 10 different airlines that fly to Denmark on a routine basis, so you have a few additional options to choose from.

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?

There are 10 operators available for flights from Seattle/Tacoma Intl Airport to Denmark as of May 2026.

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.

$194 Cheap Flights from Seattle to Denmark in 2026

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Find the cheapest flights from Seattle to Denmark

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 10:50 am

SEA

CPH

17h 50m

1 stop

12:45 pm - 10:42 pm

CPH

SEA

18h 57m

2 stops

$568Multiple Airlines

Mon, Oct 12 - Tue, Oct 20

8:00 am - 10:50 am

SEA

CPH

17h 50m

1 stop

12:15 pm - 7:07 pm

CPH

SEA

39h 52m

2 stops

$571United Airlines

Fri, Aug 21 - Mon, Aug 31

7:00 pm - 3:55 pm

SEA

CPH

11h 55m

1 stop

4:55 pm - 8:40 pm

CPH

SEA

12h 45m

1 stop

$574Icelandair

Thu, Oct 1 - Sat, Oct 24

11:25 pm - 6:20 am

SEA

CPH

21h 55m

1 stop

4:55 pm - 8:40 pm

CPH

SEA

12h 45m

1 stop

$575Icelandair

Tue, Jun 16 - Tue, Oct 6

1:30 pm - 4:25 pm

SEA

BLL

17h 55m

1 stop

6:00 am - 11:33 am

BLL

SEA

14h 33m

1 stop

$672Air France

Mon, Jun 29 - Thu, Jul 9

6:50 pm - 10:25 pm

SEA

BLL

18h 35m

1 stop

6:40 am - 11:15 am

BLL

SEA

13h 35m

1 stop

$673Air France

Mon, Jun 29 - Thu, Jul 9

7:20 am - 10:00 am

SEA

AAL

17h 40m

2 stops

6:20 am - 11:33 am

AAL

SEA

14h 13m

1 stop

$808Delta

Tue, Jul 14 - Sun, Jul 26

10:05 am - 11:55 am

SEA

AAL

40h 50m

2 stops

2:45 pm - 11:59 pm

AAL

SEA

42h 14m

2 stops

$840Scandinavian Airlines

Tue, Jul 14 - Sun, Jul 26

7:20 am - 11:00 am

SEA

BLL

18h 40m

2 stops

6:40 am - 11:15 am

BLL

SEA

13h 35m

1 stop

$850Delta

Mon, Jun 29 - Thu, Jul 9

3:55 pm - 11:55 am

SEA

AAL

11h 00m

1 stop

6:15 am - 7:52 pm

AAL

SEA

22h 37m

2 stops

$874Scandinavian Airlines

Sun, Aug 2 - Tue, Aug 18

Delta flights from Seattle to Denmark

Our best Delta deals on Seattle to Denmark flight tickets

Delta

Aug 14

SEA6:40 pmSeattle/Tacoma Intl

15h 05m

1 stop

CPH6:45 pmKastrup Copenhagen

Dec 10

CPH9:55 amKastrup Copenhagen

21h 10m

2 stops

SEA10:05 pmSeattle/Tacoma Intl

$600

Delta

Aug 14

SEA6:40 pmSeattle/Tacoma Intl

13h 25m

1 stop

CPH5:05 pmKastrup Copenhagen

Dec 10

CPH9:55 amKastrup Copenhagen

21h 10m

2 stops

SEA10:05 pmSeattle/Tacoma Intl

$613

Delta

Jul 10

SEA7:15 amSeattle/Tacoma Intl

14h 30m

1 stop

CPH6:45 amKastrup Copenhagen

Jul 24

CPH9:00 amKastrup Copenhagen

20h 28m

1 stop

SEA8:28 pmSeattle/Tacoma Intl

$616

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets

United Airlines

Aug 21

SEA8:00 amSeattle/Tacoma Intl

17h 50m

1 stop

CPH10:50 amKastrup Copenhagen

Aug 31

CPH12:15 pmKastrup Copenhagen

39h 52m

2 stops

SEA7:07 pmSeattle/Tacoma Intl

$571

United Airlines

Aug 23

SEA8:00 amSeattle/Tacoma Intl

17h 35m

1 stop

CPH10:35 amKastrup Copenhagen

Sep 1

CPH12:45 pmKastrup Copenhagen

17h 22m

1 stop

SEA9:07 pmSeattle/Tacoma Intl

$589

United Airlines

Aug 18

SEA6:50 pmSeattle/Tacoma Intl

19h 40m

1 stop

CPH11:30 pmKastrup Copenhagen

Aug 28

CPH12:45 pmKastrup Copenhagen

17h 22m

1 stop

SEA9:07 pmSeattle/Tacoma Intl

$604

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 10/12

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Tue 10/20

12:45 pm-10:42 pm

2 stops18h 57m

$568

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 8/21

8:00 am-10:50 am

1 stop17h 50m

Kastrup Copenhagen

Mon 8/31

12:15 pm-7:07 pm

2 stops39h 52m

$571

Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 10/1

7:00 pm-3:55 pm

1 stop11h 55m

Kastrup Copenhagen

Sat 10/24

4:55 pm-8:40 pm

1 stop12h 45m

$574

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 6/16

11:25 pm-6:20 am

1 stop21h 55m

Kastrup Copenhagen

Tue 10/6

4:55 pm-8:40 pm

1 stop12h 45m

$575

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

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

$673

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Tue 7/14

7:20 am-10:00 am

2 stops17h 40m

Aalborg

Sun 7/26

6:20 am-11:33 am

1 stop14h 13m

$808

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Tue 7/14

10:05 am-11:55 am

2 stops40h 50m

Aalborg

Sun 7/26

2:45 pm-11:59 pm

2 stops42h 14m

$840

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

7:20 am-11:00 am

2 stops18h 40m

Billund

Thu 7/9

6:40 am-11:15 am

1 stop13h 35m

$850

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 8/2

3:55 pm-11:55 am

1 stop11h 00m

Aalborg

Tue 8/18

6:15 am-7:52 pm

2 stops22h 37m

$874

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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 $663. 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 $776.

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 $605 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 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	$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 $768.

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?
There are 10 operators available for flights from Seattle/Tacoma Intl Airport to Denmark as of May 2026.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seattle to Denmark is Airbus A350-900 (49.45% of total bookings). The next most popular plane models are Airbus A330-900neo (16.06%), Boeing 787-10 Dreamliner (9.22%), and Boeing 777-300ER (7.66%).

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 France	PriceFrom $332	Free Cancellation	Rating 7.4 1,595 reviews	Search Air France flights
SWISS	PriceFrom $371	Free Cancellation	Rating 7.5 1,964 reviews	Search SWISS flights
Icelandair	PriceFrom $420	Free Cancellation	Rating 7.0 661 reviews	Search Icelandair flights
Delta	PriceFrom $421	Free Cancellation	Rating 7.9 8,420 reviews	Search Delta flights
Scandinavian Airlines	PriceFrom $502	Free Cancellation	Rating 7.4 1,801 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $506	Free Cancellation	Rating 6.7 8,008 reviews	Search British Airways flights
United Airlines	PriceFrom $509	Free Cancellation	Rating 7.4 9,763 reviews	Search United Airlines flights
Lufthansa	PriceFrom $509	Free Cancellation	Rating 6.8 8,032 reviews	Search Lufthansa flights
Air Canada	PriceFrom $515	Free Cancellation	Rating 7.1 11,096 reviews	Search Air Canada flights
KLM	PriceFrom $528	Free Cancellation	Rating 7.8 1,526 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities

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Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $418

Flights to Billundfrom $561

Flights to Aalborgfrom $550

Flights to Aarhusfrom $580

Flights to Sønderborgfrom $1,298

Flights to Karupfrom $1,271

Flights to Esbjergfrom $1,557

Cheap flights from Seattle to Denmark from $194

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 7/4. 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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Delta flights from Seattle to Denmark

Our best Delta deals on Seattle to Denmark flight tickets

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets

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Use the filters below to find and compare flights from Seattle to Denmark that are best for you.

See travel insights to Denmark from

How to get the cheapest flight ticket from Seattle to Denmark

What is the cheapest month to fly to Denmark?

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

What is the cheapest Seattle/Tacoma Intl to Denmark flight route?

How far in advance should I book a flight from Seattle to Denmark?

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

Can stopping save me money on Seattle to Denmark flights?

What is the cheapest airline that flies from Seattle/Tacoma Intl to Denmark?

What airlines fly to Denmark?

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

Fastest flight time

Direct flights

Airports in Denmark

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Denmark trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Denmark

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo

Seattle flight routes

According to popular flight searches on momondo this year

Denmark flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Denmark

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Denmark

List of cabin classes available on flights landing in Denmark. Availability may vary depending on flight origin and airline.

Complete your trip to Denmark

Explore popular destinations other users love

According to popular flight searches on momondo this year