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Cheap flights from Seattle to Denmark from $231

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 12/8. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:40 pm - 9:45 pm
SEA
-
CPH
21h 05m
1 stop
Icelandair Logo
2:00 pm - 5:55 pm
CPH
-
SEA
12h 55m
1 stop
$540Icelandair
Tue, Jul 21 - Thu, Aug 20
Lufthansa Logo
2:10 pm - 6:40 pm
SEA
-
CPH
19h 30m
2 stops
Lufthansa Logo
12:15 pm - 10:42 pm
CPH
-
SEA
19h 27m
2 stops
$541Lufthansa
Sun, Aug 9 - Wed, Aug 26
Lufthansa Logo
7:05 pm - 10:20 am
SEA
-
CPH
30h 15m
2 stops
Lufthansa Logo
11:35 am - 10:29 pm
CPH
-
SEA
19h 54m
2 stops
$543Lufthansa
Fri, Dec 11 - Sat, Jan 9
Air Canada Logo
7:45 am - 9:15 am
SEA
-
CPH
16h 30m
2 stops
Air Canada Logo
9:50 am - 8:59 pm
CPH
-
SEA
20h 09m
2 stops
$547Air Canada
Fri, Dec 11 - Sun, Jan 10
Air France Logo
2:05 pm - 9:45 pm
SEA
-
BLL
22h 40m
1 stop
Air France Logo
6:00 am - 11:47 am
BLL
-
SEA
14h 47m
1 stop
$596Air France
Wed, Nov 4 - Wed, Nov 11
Delta Logo
11:05 am - 2:25 pm
SEA
-
BLL
18h 20m
2 stops
Delta Logo
6:00 am - 11:47 am
BLL
-
SEA
14h 47m
1 stop
$600Delta
Wed, Nov 4 - Wed, Nov 11
Air France Logo
6:40 pm - 10:25 pm
SEA
-
BLL
18h 45m
1 stop
Air France Logo
4:00 pm - 11:37 am
BLL
-
SEA
28h 37m
1 stop
$605Air France
Sun, Aug 16 - Sun, Aug 23
Delta Logo
9:43 am - 2:25 pm
SEA
-
BLL
19h 42m
2 stops
Delta Logo
12:05 pm - 10:05 pm
BLL
-
SEA
19h 00m
2 stops
$610Delta
Wed, Nov 4 - Wed, Nov 11
Scandinavian Airlines Logo
3:55 pm - 8:55 am
SEA
-
AAL
32h 00m
1 stop
Scandinavian Airlines Logo
6:15 am - 1:45 pm
AAL
-
SEA
16h 30m
1 stop
$784Scandinavian Airlines
Fri, Jul 31 - Tue, Aug 11
Scandinavian Airlines Logo
5:40 pm - 2:10 pm
SEA
-
AAL
35h 30m
2 stops
Scandinavian Airlines Logo
7:00 am - 1:45 pm
AAL
-
SEA
15h 45m
1 stop
$830Scandinavian Airlines
Fri, Jul 31 - Tue, Aug 11

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United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Aug 7
SEA5:15 pmSeattle/Tacoma Intl
32h 35m
2 stops
CPH10:50 amKastrup Copenhagen
Aug 17
CPH12:30 pmKastrup Copenhagen
39h 38m
3 stops
SEA7:08 pmSeattle/Tacoma Intl
$583
United Airlines
Aug 9
SEA2:10 pmSeattle/Tacoma Intl
34h 20m
1 stop
CPH9:30 amKastrup Copenhagen
Aug 25
CPH12:45 pmKastrup Copenhagen
17h 22m
1 stop
SEA9:07 pmSeattle/Tacoma Intl
$595
United Airlines
Jul 11
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Jul 23
CPH12:45 pmKastrup Copenhagen
17h 22m
1 stop
SEA9:07 pmSeattle/Tacoma Intl
$703

Icelandair flights from Seattle to Denmark

Our best Icelandair deals on Seattle to Denmark flight tickets
Icelandair
Jul 21
SEA3:40 pmSeattle/Tacoma Intl
21h 05m
1 stop
CPH9:45 pmKastrup Copenhagen
Aug 20
CPH2:00 pmKastrup Copenhagen
12h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$540
Icelandair
Jul 28
SEA11:25 pmSeattle/Tacoma Intl
21h 55m
1 stop
CPH6:20 amKastrup Copenhagen
Aug 17
CPH10:35 pmKastrup Copenhagen
22h 10m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$544
Icelandair
Jul 28
SEA11:25 pmSeattle/Tacoma Intl
21h 55m
1 stop
CPH6:20 amKastrup Copenhagen
Aug 17
CPH10:35 pmKastrup Copenhagen
22h 10m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$545

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 July 3, 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

Tue 7/21

3:40 pm-9:45 pm

1 stop21h 05m

Kastrup Copenhagen

Thu 8/20

2:00 pm-5:55 pm

1 stop12h 55m

$540

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 8/9

2:10 pm-6:40 pm

2 stops19h 30m

Kastrup Copenhagen

Wed 8/26

12:15 pm-10:42 pm

2 stops19h 27m

$541

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 12/11

7:05 pm-10:20 am

2 stops30h 15m

Kastrup Copenhagen

Sat 1/9

11:35 am-10:29 pm

2 stops19h 54m

$543

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 12/11

7:45 am-9:15 am

2 stops16h 30m

Kastrup Copenhagen

Sun 1/10

9:50 am-8:59 pm

2 stops20h 09m

$547

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 11/4

2:05 pm-9:45 pm

1 stop22h 40m

Billund

Wed 11/11

6:00 am-11:47 am

1 stop14h 47m

$596
Quickest round-trip

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 11/4

11:05 am-2:25 pm

2 stops18h 20m

Billund

Wed 11/11

6:00 am-11:47 am

1 stop14h 47m

$600

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sun 8/16

6:40 pm-10:25 pm

1 stop18h 45m

Billund

Sun 8/23

4:00 pm-11:37 am

1 stop28h 37m

$605

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 11/4

9:43 am-2:25 pm

2 stops19h 42m

Billund

Wed 11/11

12:05 pm-10:05 pm

2 stops19h 00m

$610

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Fri 7/31

3:55 pm-8:55 am

1 stop32h 00m

Aalborg

Tue 8/11

6:15 am-1:45 pm

1 stop16h 30m

$784

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Fri 7/31

5:40 pm-2:10 pm

2 stops35h 30m

Aalborg

Tue 8/11

7:00 am-1:45 pm

1 stop15h 45m

$830

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 October 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 $690. 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 $806.

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 $616 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 $576 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 58% 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

$539

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 $539. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $777.
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
SWISSPriceFrom $371Free CancellationRating
7.5
1,988 reviews
Search SWISS flights
IcelandairPriceFrom $419Free CancellationRating
7.0
699 reviews
Search Icelandair flights
DeltaPriceFrom $421Free CancellationRating
7.8
8,454 reviews
Search Delta flights
Air FrancePriceFrom $469Free CancellationRating
7.5
1,618 reviews
Search Air France flights
Air CanadaPriceFrom $482Free CancellationRating
7.1
11,293 reviews
Search Air Canada flights
United AirlinesPriceFrom $482Free CancellationRating
7.4
9,931 reviews
Search United Airlines flights
Scandinavian AirlinesPriceFrom $501Free CancellationRating
7.4
1,862 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $506Free CancellationRating
6.7
8,094 reviews
Search British Airways flights
LufthansaPriceFrom $509Free CancellationRating
6.8
8,108 reviews
Search Lufthansa flights
KLMPriceFrom $528Free CancellationRating
7.8
1,533 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.

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Find better results for your trip to Denmark

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