What is the cheapest airline that flies from Washington to Denmark?

Icelandair, Delta, and British Airways are the most popular carriers operating from Washington to Denmark

How many flights depart from State of Washington to Denmark on average per week?

6 flights are operational weekly from State of Washington to Denmark as of September 2025. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

What airlines fly to Denmark?

Icelandair, Scandinavian Airlines and Delta are the top three most popular airlines that fly to Denmark from State of Washington according to our data. Icelandair is the first choice among our users, with 45% 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.

How long is the flight from State of Washington to Denmark?

Average flight duration from State of Washington to Denmark depends on which airport you fly into and out of. Flying from Seattle to Copenhagen is 9h 30m on average, while flying from Spokane to Copenhagen is 20h 41m on average. Copenhagen is the most popular airport in Denmark.

When did momondo last update prices for flights from Washington to Denmark?

Prices for flights from Washington to Denmark refresh daily.

How many operators does momondo search for flights from Washington to Denmark?

As of September 2025, there are 11 operators available to choose from for flights from Washington to Denmark.

How old do you have to be to fly from Washington to Denmark?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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.

$281 Cheap Flights from Washington to Denmark in 2025/26

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Find the cheapest flights from Washington to Denmark

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:35 pm - 8:35 pmSEA-CPH

21h 00m1 stop

12:55 pm - 5:00 pmCPH-SEA

13h 05m1 stop

$433Icelandair

Find Deal

mié., nov. 5 - jue., nov. 27

2:35 pm - 11:45 amSEA-CPH

12h 10m1 stop

12:55 pm - 5:00 pmCPH-SEA

13h 05m1 stop

$440Icelandair

Find Deal

mar., dic. 2 - mié., dic. 10

2:35 pm - 11:45 amSEA-CPH

12h 10m1 stop

7:20 am - 5:50 pmCPH-SEA

19h 30m1 stop

$441Icelandair

Find Deal

mié., nov. 26 - mié., abr. 15

7:30 am - 7:00 amSEA-CPH

14h 30m1 stop

2:20 pm - 10:59 pmCPH-SEA

17h 39m1 stop

$462Scandinavian Airlines

Find Deal

mar., nov. 11 - mar., nov. 25

11:15 am - 10:25 amSEA-CPH

14h 10m1 stop

2:20 pm - 10:59 pmCPH-SEA

17h 39m1 stop

$463Scandinavian Airlines

Find Deal

lun., nov. 17 - jue., nov. 20

9:59 pm - 6:30 amSEA-CPH

23h 31m1 stop

9:00 am - 11:54 pmCPH-SEA

23h 54m2 stops

$507Delta

Find Deal

sáb., oct. 11 - mar., oct. 21

2:20 pm - 5:20 pmSEA-CPH

18h 00m2 stops

10:30 am - 4:55 pmCPH-SEA

15h 25m1 stop

$519British Airways

Find Deal

mié., nov. 5 - jue., nov. 27

1:25 pm - 11:30 amSEA-CPH

13h 05m1 stop

12:15 pm - 11:38 pmCPH-SEA

20h 23m2 stops

$524British Airways

Find Deal

mar., dic. 2 - mié., dic. 10

9:59 pm - 6:30 amSEA-CPH

23h 31m1 stop

12:05 pm - 11:45 amCPH-SEA

32h 40m1 stop

$525Delta

Find Deal

lun., oct. 20 - dom., nov. 2

10:01 am - 12:15 pmSEA-CPH

18h 14m2 stops

8:40 am - 9:10 pmCPH-SEA

20h 30m2 stops

$531Finnair

Find Deal

mié., mar. 18 - mié., mar. 25

Icelandair flights from State of Washington to Denmark

Our best Icelandair deals on State of Washington to Denmark flight tickets

Icelandair

Nov 5

SEA2:35 pmSeattle/Tacoma Intl

21h 00m

1 stop

CPH8:35 pmKastrup Copenhagen

Nov 27

CPH12:55 pmKastrup Copenhagen

13h 05m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$433

Find similar

Icelandair

Dec 2

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

Dec 10

CPH12:55 pmKastrup Copenhagen

13h 05m

1 stop

SEA5:00 pmSeattle/Tacoma Intl

$440

Find similar

Icelandair

Nov 26

SEA2:35 pmSeattle/Tacoma Intl

12h 10m

1 stop

CPH11:45 amKastrup Copenhagen

Apr 15

CPH7:20 amKastrup Copenhagen

19h 30m

1 stop

SEA5:50 pmSeattle/Tacoma Intl

$441

Find similar

British Airways flights from State of Washington to Denmark

Our best British Airways deals on State of Washington to Denmark flight tickets

British Airways

Nov 5

SEA2:20 pmSeattle/Tacoma Intl

18h 00m

2 stops

CPH5:20 pmKastrup Copenhagen

Nov 27

CPH10:30 amKastrup Copenhagen

15h 25m

1 stop

SEA4:55 pmSeattle/Tacoma Intl

$519

Find similar

British Airways

Dec 2

SEA1:25 pmSeattle/Tacoma Intl

13h 05m

1 stop

CPH11:30 amKastrup Copenhagen

Dec 10

CPH12:15 pmKastrup Copenhagen

20h 23m

2 stops

SEA11:38 pmSeattle/Tacoma Intl

$524

Find similar

British Airways

Mar 18

SEA7:50 pmSeattle/Tacoma Intl

13h 30m

1 stop

CPH5:20 pmKastrup Copenhagen

Mar 25

CPH12:15 pmKastrup Copenhagen

20h 34m

2 stops

SEA12:49 amSeattle/Tacoma Intl

$526

Find similar

Fly from

Fly to

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 11/5

2:35 pm-8:35 pm

1 stop21h 00m

Kastrup Copenhagen

jue. 11/27

12:55 pm-5:00 pm

1 stop13h 05m

$433

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mar. 12/2

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

mié. 12/10

12:55 pm-5:00 pm

1 stop13h 05m

$440

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 11/26

2:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

mié. 4/15

7:20 am-5:50 pm

1 stop19h 30m

$441

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mar. 11/11

7:30 am-7:00 am

1 stop14h 30m

Kastrup Copenhagen

mar. 11/25

2:20 pm-10:59 pm

1 stop17h 39m

$462

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

lun. 11/17

11:15 am-10:25 am

1 stop14h 10m

Kastrup Copenhagen

jue. 11/20

2:20 pm-10:59 pm

1 stop17h 39m

$463

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

sáb. 10/11

9:59 pm-6:30 am

1 stop23h 31m

Kastrup Copenhagen

mar. 10/21

9:00 am-11:54 pm

2 stops23h 54m

$507

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 11/5

2:20 pm-5:20 pm

2 stops18h 00m

Kastrup Copenhagen

jue. 11/27

10:30 am-4:55 pm

1 stop15h 25m

$519

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mar. 12/2

1:25 pm-11:30 am

1 stop13h 05m

Kastrup Copenhagen

mié. 12/10

12:15 pm-11:38 pm

2 stops20h 23m

$524

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

lun. 10/20

9:59 pm-6:30 am

1 stop23h 31m

Kastrup Copenhagen

dom. 11/2

12:05 pm-11:45 am

1 stop32h 40m

$525

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

mié. 3/18

10:01 am-12:15 pm

2 stops18h 14m

Kastrup Copenhagen

mié. 3/25

8:40 am-9:10 pm

2 stops20h 30m

$531

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 State of Washington 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

Other information

What is the cheapest month to fly to Denmark?

In general, February is the cheapest month to fly from State of Washington to Denmark. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $545. If you aren’t able to travel to Denmark during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $570.

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

The cheapest day to depart from State of Washington to Denmark is on a Tuesday. Travelers who choose to depart for Denmark on a Tuesday will often find tickets for as low as $664. On the other hand, Saturday is the most expensive day to depart from State of Washington because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $748.

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

Flying to Denmark from State of Washington in the evening is the least expensive time of day to depart. momondo users have found prices as low as $632 when looking at flights departing in the evening. In the morning is when there is more demand to fly to Denmark, so prices are often more expensive at around $782 per ticket.

What is the cheapest Washington to Denmark flight route?

Fly from Seattle/Tacoma Intl to Kastrup Copenhagen for the best Washington - 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 State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Denmark for around $624 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denmark from State of Washington for as low as $567 on momondo.

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

There are 3 cabin classes available to choose from on Washington 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 State of Washington to Denmark flights?

You could potentially save up to 24% on your flight if you consider stops on a State of Washington to Denmark flight.

Cheap State of Washington to Denmark flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Denmark

Best Price Found	$397
Fastest flight time	9h 30m
Direct flights	Mon, Thu and Sat
Airports in Denmark	1 airport

The best one-way flight to Denmark from State of Washington in the past 72 hours is $397. The best round-trip flight deal from State of Washington to Denmark found on momondo in the last 72 hours is $539.

The fastest flight from State of Washington to Denmark takes 9h 30m

Direct flights go from State of Washington to Denmark on Monday, Thursday and Saturday. There are no airlines offering direct flights.

There is 1 airport near Denmark: Kastrup Copenhagen (CPH)

Search flight deals

When did momondo last update prices for flights from Washington to Denmark?
Prices for flights from Washington to Denmark refresh daily.
How many operators does momondo search for flights from Washington to Denmark?
As of September 2025, there are 11 operators available to choose from for flights from Washington to Denmark.
How old do you have to be to fly from Washington to Denmark?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington 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 State of Washington to Denmark?
Based on momondo bookings for flights between State of Washington and Denmark, the leading plane model is Airbus A350-900, making up 49.52% of the total bookings. Other popular models include Airbus A330-300 with 27.16%, Airbus A330-900neo with 6.25%, and Boeing 787-10 Dreamliner with 4.57%.

Best airlines flying from State of Washington to Denmark

Compare and see reviews for airlines that fly from State of Washington to Denmark with momondo

Airline	Rating	Free Cancellation	Price
Air France	PriceFrom $418	Free Cancellation	Rating 7.4 1,465 reviews	Search Air France flights
Delta	PriceFrom $421	Free Cancellation	Rating 7.9 7,973 reviews	Search Delta flights
Icelandair	PriceFrom $421	Free Cancellation	Rating 7.0 545 reviews	Search Icelandair flights
Finnair	PriceFrom $476	Free Cancellation	Rating 7.6 1,326 reviews	Search Finnair flights
American Airlines	PriceFrom $486	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
British Airways	PriceFrom $493	Free Cancellation	Rating 6.7 7,399 reviews	Search British Airways flights
Scandinavian Airlines	PriceFrom $497	Free Cancellation	Rating 7.4 1,493 reviews	Search Scandinavian Airlines flights
Air Canada	PriceFrom $536	Free Cancellation	Rating 7.1 10,000 reviews	Search Air Canada flights
United Airlines	PriceFrom $553	Free Cancellation	Rating 7.4 8,928 reviews	Search United Airlines flights
Lufthansa	PriceFrom $553	Free Cancellation	Rating 6.8 7,424 reviews	Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Denmark?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington to Denmark for you.

Can I find flights from Washington to Denmark with flexible booking policies on momondo?

All flight searches from Washington to Denmark on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington to Denmark?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Denmark from Washington.

I’m not ready to book a flight from Washington to Denmark right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Washington to Denmark now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Denmark and let you know when they change.

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.

Start using Trips

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Find better results for your trip to Denmark

Popular cities in Denmark

Flights to Copenhagenfrom $362

Flights to Billundfrom $422

Flights to Aalborgfrom $392

Flights to Aarhusfrom $456

Flights to Sønderborgfrom $744

Flights to Karupfrom $760

Flights to Esbjergfrom $1,311

Cheap flights from Washington to Denmark from $281

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Denmark departing on 10/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

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Find the cheapest flights from Washington to Denmark

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

Icelandair flights from State of Washington to Denmark

Our best Icelandair deals on State of Washington to Denmark flight tickets

British Airways flights from State of Washington to Denmark

Our best British Airways deals on State of Washington to Denmark flight tickets

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How to get the cheapest flight ticket from State of Washington 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?

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

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

What is the cheapest Washington to Denmark flight route?

Fly from Seattle/Tacoma Intl to Kastrup Copenhagen for the best Washington - Denmark flight prices

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

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

There are 3 cabin classes available to choose from on Washington 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 State of Washington to Denmark flights?

You could potentially save up to 24% on your flight if you consider stops on a State of Washington to Denmark flight.

What is the cheapest airline that flies from Washington to Denmark?

Icelandair, Delta, and British Airways are the most popular carriers operating from Washington to Denmark

What airlines fly to Denmark?

How many flights depart from State of Washington to Denmark on average per week?

6 flights are operational weekly from State of Washington to Denmark as of September 2025. The most popular departure day for this route is Wed, with 33% of flights per week taking off on this day.

How long is the flight from State of Washington to Denmark?

Average flight duration from State of Washington to Denmark depends on which airport you fly into and out of. Flying from Seattle to Copenhagen is 9h 30m on average, while flying from Spokane to Copenhagen is 20h 41m on average. Copenhagen is the most popular airport in Denmark.

Cheap State of Washington to Denmark flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from State of Washington to Denmark

Best Price Found

Fastest flight time

Direct flights

Airports in Denmark

When did momondo last update prices for flights from Washington to Denmark?

How many operators does momondo search for flights from Washington to Denmark?

How old do you have to be to fly from Washington to Denmark?

What documentation or ID do you need to fly to Denmark?

What is the most popular plane model from State of Washington to Denmark?

Best airlines flying from State of Washington to Denmark

Compare and see reviews for airlines that fly from State of Washington to Denmark with momondo

Why use momondo?

Why should I use momondo to find a flight deal from Washington to Denmark?

Can I find flights from Washington to Denmark with flexible booking policies on momondo?

How can momondo help me find flights from Washington to Denmark?

I’m not ready to book a flight from Washington to Denmark right now. Can momondo alert me if prices change?

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