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Cheap flights from Washington to Denmark from $206

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 4/25. 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
0 bags

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Find the cheapest flights from Washington to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:45 pm - 5:20 am
PDX
-
CPH
29h 35m
1 stop
Icelandair Logo
4:55 pm - 6:00 pm
CPH
-
PDX
34h 05m
1 stop
$361Icelandair
Mon, Mar 16 - Tue, Mar 31
Virgin Atlantic Logo
10:40 pm - 6:45 am
SEA
-
CPH
23h 05m
1 stop
Virgin Atlantic Logo
9:00 am - 10:05 am
CPH
-
SEA
34h 05m
1 stop
$396Virgin Atlantic
Sun, May 3 - Sun, May 10
Icelandair Logo
2:35 pm - 5:20 am
SEA
-
CPH
29h 45m
1 stop
Icelandair Logo
12:55 pm - 5:00 pm
CPH
-
SEA
13h 05m
1 stop
$401Icelandair
Mon, Feb 16 - Wed, Mar 4
Air France Logo
2:15 pm - 11:00 pm
SEA
-
BLL
23h 45m
1 stop
Air France Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$471Air France
Fri, Feb 20 - Sun, Mar 1
Air France Logo
2:15 pm - 11:00 pm
SEA
-
BLL
23h 45m
1 stop
Air France Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$472Air France
Fri, Feb 20 - Sun, Mar 1
Delta Logo
1:45 pm - 10:00 am
SEA
-
AAL
35h 15m
1 stop
Delta Logo
10:30 am - 4:30 pm
AAL
-
SEA
15h 00m
1 stop
$482Delta
Sun, Apr 5 - Thu, Apr 23
Delta Logo
7:10 am - 9:40 am
SEA
-
BLL
17h 30m
2 stops
Delta Logo
6:30 am - 1:05 pm
BLL
-
SEA
15h 35m
1 stop
$484Delta
Fri, Feb 20 - Sun, Mar 1
United Airlines Logo
7:29 pm - 6:10 pm
SEA
-
BLL
37h 41m
2 stops
United Airlines Logo
6:30 am - 10:43 pm
BLL
-
SEA
25h 13m
2 stops
$511United Airlines
Sat, Feb 28 - Tue, Mar 3
British Airways Logo
5:45 pm - 12:30 pm
PDX
-
BLL
33h 45m
1 stop
British Airways Logo
8:45 pm - 12:20 am
BLL
-
PDX
35h 35m
2 stops
$531British Airways
Mon, Mar 2 - Mon, Mar 9
United Airlines Logo
5:30 am - 1:20 pm
PDX
-
BLL
22h 50m
2 stops
United Airlines Logo
2:15 pm - 12:35 am
BLL
-
PDX
18h 20m
2 stops
$554United Airlines
Thu, Mar 5 - Mon, Mar 9

Icelandair flights from State of Washington to Denmark

Our best Icelandair deals on State of Washington to Denmark flight tickets
Icelandair
Mar 16
PDX3:45 pmPortland
29h 35m
1 stop
CPH5:20 amKastrup Copenhagen
Mar 31
CPH4:55 pmKastrup Copenhagen
34h 05m
1 stop
PDX6:00 pmPortland
$361
Icelandair
Feb 16
SEA2:35 pmSeattle/Tacoma Intl
29h 45m
1 stop
CPH5:20 amKastrup Copenhagen
Mar 4
CPH12:55 pmKastrup Copenhagen
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$401
Icelandair
May 3
SEA7:00 pmSeattle/Tacoma Intl
11h 55m
1 stop
CPH3:55 pmKastrup Copenhagen
May 11
CPH2:00 pmKastrup Copenhagen
15h 40m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$418

Lufthansa flights from State of Washington to Denmark

Our best Lufthansa deals on State of Washington to Denmark flight tickets
Lufthansa
Mar 25
SEA4:10 pmSeattle/Tacoma Intl
17h 25m
1 stop
CPH5:35 pmKastrup Copenhagen
Apr 15
CPH6:20 amKastrup Copenhagen
15h 00m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$498
Lufthansa
Feb 16
SEA2:00 pmSeattle/Tacoma Intl
13h 00m
1 stop
CPH12:00 pmKastrup Copenhagen
Feb 18
CPH6:50 amKastrup Copenhagen
23h 06m
2 stops
SEA8:56 pmSeattle/Tacoma Intl
$519
Lufthansa
Feb 16
SEA2:00 pmSeattle/Tacoma Intl
14h 35m
1 stop
CPH1:35 pmKastrup Copenhagen
Feb 18
CPH8:55 amKastrup Copenhagen
13h 25m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
$522

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington 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 February 5, 2026.
Use the filters below to find and compare flights from Washington to Denmark that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandCopenhagen

PDX - CPH

PDXCPH

Portland

Mon 3/16

3:45 pm-5:20 am

1 stop29h 35m

Kastrup Copenhagen

Tue 3/31

4:55 pm-6:00 pm

1 stop34h 05m

$361

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 5/3

10:40 pm-6:45 am

1 stop23h 05m

Kastrup Copenhagen

Sun 5/10

9:00 am-10:05 am

1 stop34h 05m

$396

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 2/16

2:35 pm-5:20 am

1 stop29h 45m

Kastrup Copenhagen

Wed 3/4

12:55 pm-5:00 pm

1 stop13h 05m

$401

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

2:15 pm-11:00 pm

1 stop23h 45m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$471

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

2:15 pm-11:00 pm

1 stop23h 45m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$472

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Sun 4/5

1:45 pm-10:00 am

1 stop35h 15m

Aalborg

Thu 4/23

10:30 am-4:30 pm

1 stop15h 00m

$482

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:10 am-9:40 am

2 stops17h 30m

Billund

Sun 3/1

6:30 am-1:05 pm

1 stop15h 35m

$484

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 2/28

7:29 pm-6:10 pm

2 stops37h 41m

Billund

Tue 3/3

6:30 am-10:43 pm

2 stops25h 13m

$511

PortlandBillund

PDX - BLL

PDXBLL

Portland

Mon 3/2

5:45 pm-12:30 pm

1 stop33h 45m

Billund

Mon 3/9

8:45 pm-12:20 am

2 stops35h 35m

$531

PortlandBillund

PDX - BLL

PDXBLL

Portland

Thu 3/5

5:30 am-1:20 pm

2 stops22h 50m

Billund

Mon 3/9

2:15 pm-12:35 am

2 stops18h 20m

$554

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 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?

In general, October 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 $523. If you aren’t able to travel to Denmark during the month of October, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $535.

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 Monday. Travelers who choose to depart for Denmark on a Monday will often find tickets for as low as $655. 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 $737.

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 $617 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 $589 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 39% 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

$506

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 State of Washington in the past 72 hours is $506. The best round-trip flight deal from State of Washington to Denmark found on momondo in the last 72 hours is $552.
The fastest flight from State of Washington to Denmark takes 9h 15m
Direct flights go from State of Washington to Denmark on Monday, Wednesday, Saturday and Sunday. There are no airlines offering direct flights.
There are 19 airports in Denmark. From State of Washington there are direct flights to 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?

  • 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?

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
FinnairPriceFrom $385Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
Air FrancePriceFrom $418Free CancellationRating
7.4
1,532 reviews
Search Air France flights
IcelandairPriceFrom $422Free CancellationRating
7.1
606 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $497Free CancellationRating
7.3
1,677 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
7,716 reviews
Search British Airways flights
KLMPriceFrom $524Free CancellationRating
7.7
1,449 reviews
Search KLM flights
DeltaPriceFrom $531Free CancellationRating
7.9
8,149 reviews
Search Delta flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,761 reviews
Search Lufthansa flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,236 reviews
Search United Airlines flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,690 reviews
Search Air Canada 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.

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