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

Icelandair, British Airways, and United Airlines 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 51% of people opting to fly with this airline when traveling to Denmark. Keep in mind that there are 11 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 11 operators available for flights from Seattle/Tacoma Intl Airport to Denmark as of March 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.

$188 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.

7:00 pm - 9:45 pm

SEA

CPH

17h 45m

1 stop

10:35 pm - 5:55 pm

CPH

SEA

28h 20m

1 stop

$438Icelandair

Thu, Apr 30 - Mon, May 11

7:00 pm - 9:45 pm

SEA

CPH

17h 45m

1 stop

10:35 pm - 8:40 pm

CPH

SEA

31h 05m

1 stop

$443Icelandair

Sun, Apr 12 - Mon, Apr 27

2:10 pm - 5:55 pm

SEA

BLL

18h 45m

1 stop

6:05 am - 12:20 pm

BLL

SEA

15h 15m

1 stop

$708United Airlines

Tue, May 5 - Tue, May 12

5:05 am - 2:10 pm

SEA

BLL

24h 05m

2 stops

6:00 am - 12:20 pm

BLL

SEA

15h 20m

1 stop

$712United Airlines

Mon, May 4 - Mon, May 11

6:50 pm - 10:25 pm

SEA

BLL

18h 35m

1 stop

10:15 am - 4:20 pm

BLL

SEA

15h 05m

1 stop

$719Air France

Mon, Jun 29 - Thu, Jul 9

1:55 pm - 1:30 pm

SEA

BLL

14h 35m

1 stop

6:00 am - 11:33 am

BLL

SEA

14h 33m

1 stop

$730Air France

Tue, Jun 30 - Tue, Jul 7

3:55 pm - 4:40 pm

SEA

BLL

15h 45m

1 stop

5:15 pm - 10:17 pm

BLL

SEA

38h 02m

2 stops

$802Scandinavian Airlines

Tue, Jun 30 - Mon, Jul 6

3:55 pm - 11:55 am

SEA

AAL

11h 00m

1 stop

6:55 pm - 12:22 am

AAL

SEA

38h 27m

2 stops

$826Scandinavian Airlines

Sun, Jun 28 - Wed, Jul 8

5:40 pm - 10:00 am

SEA

AAL

31h 20m

1 stop

6:15 pm - 11:42 am

AAL

SEA

26h 27m

1 stop

$860KLM

Sat, May 16 - Mon, May 25

5:40 pm - 1:40 pm

SEA

AAL

35h 00m

1 stop

2:15 pm - 4:30 pm

AAL

SEA

35h 15m

1 stop

$1,130KLM

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

Apr 14

SEA8:00 amSeattle/Tacoma Intl

17h 50m

1 stop

CPH10:50 amKastrup Copenhagen

Apr 24

CPH12:45 pmKastrup Copenhagen

43h 42m

3 stops

SEA11:27 pmSeattle/Tacoma Intl

$495

United Airlines

Apr 14

SEA8:42 amSeattle/Tacoma Intl

17h 08m

2 stops

CPH10:50 amKastrup Copenhagen

Apr 24

CPH12:45 pmKastrup Copenhagen

43h 42m

3 stops

SEA11:27 pmSeattle/Tacoma Intl

$500

United Airlines

May 5

SEA2:10 pmSeattle/Tacoma Intl

18h 45m

1 stop

BLL5:55 pmBillund

May 12

BLL6:05 amBillund

15h 15m

1 stop

SEA12:20 pmSeattle/Tacoma Intl

$708

Lufthansa flights from Seattle to Denmark

Our best Lufthansa deals on Seattle to Denmark flight tickets

Lufthansa

May 6

SEA6:50 pmSeattle/Tacoma Intl

12h 35m

1 stop

CPH4:25 pmKastrup Copenhagen

May 13

CPH12:40 pmKastrup Copenhagen

13h 19m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$497

Lufthansa

May 3

SEA6:50 pmSeattle/Tacoma Intl

12h 35m

1 stop

CPH4:25 pmKastrup Copenhagen

May 13

CPH6:00 amKastrup Copenhagen

19h 59m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$498

Lufthansa

May 6

SEA6:50 pmSeattle/Tacoma Intl

12h 35m

1 stop

CPH4:25 pmKastrup Copenhagen

May 13

CPH8:40 amKastrup Copenhagen

17h 19m

1 stop

SEA4:59 pmSeattle/Tacoma Intl

$501

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 4/30

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Mon 5/11

10:35 pm-5:55 pm

1 stop28h 20m

$438

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/12

7:00 pm-9:45 pm

1 stop17h 45m

Kastrup Copenhagen

Mon 4/27

10:35 pm-8:40 pm

1 stop31h 05m

$443

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 5/5

2:10 pm-5:55 pm

1 stop18h 45m

Billund

Tue 5/12

6:05 am-12:20 pm

1 stop15h 15m

$708

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 5/4

5:05 am-2:10 pm

2 stops24h 05m

Billund

Mon 5/11

6:00 am-12:20 pm

1 stop15h 20m

$712

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 6/29

6:50 pm-10:25 pm

1 stop18h 35m

Billund

Thu 7/9

10:15 am-4:20 pm

1 stop15h 05m

$719

Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 6/30

1:55 pm-1:30 pm

1 stop14h 35m

Billund

Tue 7/7

6:00 am-11:33 am

1 stop14h 33m

$730

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 6/30

3:55 pm-4:40 pm

1 stop15h 45m

Billund

Mon 7/6

5:15 pm-10:17 pm

2 stops38h 02m

$802

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 6/28

3:55 pm-11:55 am

1 stop11h 00m

Aalborg

Wed 7/8

6:55 pm-12:22 am

2 stops38h 27m

$826

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

5:40 pm-10:00 am

1 stop31h 20m

Aalborg

Mon 5/25

6:15 pm-11:42 am

1 stop26h 27m

$860

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sat 5/16

5:40 pm-1:40 pm

1 stop35h 00m

Aalborg

Mon 5/25

2:15 pm-4:30 pm

1 stop35h 15m

$1,130

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, 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 $447. If you aren’t able to travel to Denmark during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $523.

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 $646. 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 $724.

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 $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 $603 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 62% 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	$389
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 $389. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $600.

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?
There are 11 operators available for flights from Seattle/Tacoma Intl Airport to Denmark as of March 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 (39.90% of total bookings). The next most popular plane models are Airbus A330-900neo (18.03%), Boeing 787-9 Dreamliner (10.18%), and Boeing 787-10 Dreamliner (7.85%).

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
Finnair	PriceFrom $385	Free Cancellation	Rating 7.7 1,374 reviews	Search Finnair flights
Icelandair	PriceFrom $419	Free Cancellation	Rating 7.0 625 reviews	Search Icelandair flights
Delta	PriceFrom $421	Free Cancellation	Rating 7.9 8,314 reviews	Search Delta flights
Air France	PriceFrom $469	Free Cancellation	Rating 7.4 1,547 reviews	Search Air France flights
Scandinavian Airlines	PriceFrom $498	Free Cancellation	Rating 7.3 1,720 reviews	Search Scandinavian Airlines flights
British Airways	PriceFrom $506	Free Cancellation	Rating 6.7 7,807 reviews	Search British Airways flights
KLM	PriceFrom $528	Free Cancellation	Rating 7.8 1,477 reviews	Search KLM flights
Lufthansa	PriceFrom $530	Free Cancellation	Rating 6.8 7,860 reviews	Search Lufthansa flights
United Airlines	PriceFrom $535	Free Cancellation	Rating 7.4 9,455 reviews	Search United Airlines flights
Air Canada	PriceFrom $536	Free Cancellation	Rating 7.1 10,830 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

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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Complete your trip

Feeling lucky

Popular cities in Denmark

Flights to Copenhagenfrom $380

Flights to Billundfrom $432

Flights to Aalborgfrom $511

Flights to Aarhusfrom $423

Flights to Sønderborgfrom $991

Flights to Karupfrom $760

Flights to Esbjergfrom $1,311

Cheap flights from Seattle to Denmark from $188

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 5/4. 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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United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets

Lufthansa flights from Seattle to Denmark

Our best Lufthansa 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 to Denmark?

What cabin class options are available on Seattle/Tacoma Intl 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

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