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Cheap flights from Seattle to Denmark from $271

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 5/10. 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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0 bags

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Find the cheapest flights from Seattle to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
7:10 am - 10:25 am
SEA
-
CPH
18h 15m1 stop
Scandinavian Airlines Logo
12:55 pm - 10:25 pm
CPH
-
SEA
18h 30m1 stop
$490Scandinavian Airlines
Mon, Jan 12 - Tue, Jan 27
Scandinavian Airlines Logo
11:30 am - 2:55 pm
SEA
-
BLL
18h 25m2 stops
Scandinavian Airlines Logo
9:55 am - 8:46 pm
BLL
-
SEA
19h 51m2 stops
$492Scandinavian Airlines
Sat, Jan 24 - Sat, Jan 31
Lufthansa Logo
2:00 pm - 1:20 pm
SEA
-
BLL
14h 20m1 stop
Lufthansa Logo
6:45 am - 12:10 pm
BLL
-
SEA
14h 25m1 stop
$494Lufthansa
Sat, Jan 24 - Sat, Jan 31
Icelandair Logo
3:35 pm - 7:50 pm
SEA
-
CPH
20h 15m1 stop
Icelandair Logo
4:15 pm - 8:45 pm
CPH
-
SEA
12h 30m1 stop
$496Icelandair
Wed, Mar 18 - Fri, Mar 27
Scandinavian Airlines Logo
12:00 pm - 3:10 pm
SEA
-
CPH
18h 10m1 stop
Scandinavian Airlines Logo
1:35 pm - 12:06 am
CPH
-
SEA
19h 31m1 stop
$501Scandinavian Airlines
Sun, Apr 19 - Thu, Apr 23
British Airways Logo
8:04 am - 11:30 am
SEA
-
CPH
18h 26m2 stops
British Airways Logo
10:30 am - 4:55 pm
CPH
-
SEA
15h 25m1 stop
$502British Airways
Tue, Jan 27 - Tue, Feb 10
British Airways Logo
1:25 pm - 11:30 am
SEA
-
CPH
13h 05m1 stop
British Airways Logo
6:25 am - 4:55 pm
CPH
-
SEA
19h 30m1 stop
$504British Airways
Tue, Jan 27 - Tue, Feb 10
Lufthansa Logo
7:00 am - 10:00 am
SEA
-
BLL
18h 00m2 stops
Lufthansa Logo
6:30 am - 8:56 pm
BLL
-
SEA
23h 26m2 stops
$521Lufthansa
Fri, Feb 20 - Sun, Mar 1
Delta Logo
5:35 pm - 5:45 pm
SEA
-
AAL
15h 10m1 stop
Delta Logo
10:30 am - 7:45 pm
AAL
-
SEA
18h 15m2 stops
$657Delta
Thu, Apr 9 - Sat, Apr 18
Delta Logo
11:46 am - 5:45 pm
SEA
-
AAL
20h 59m2 stops
Delta Logo
10:30 am - 7:45 pm
AAL
-
SEA
18h 15m2 stops
$662Delta
Thu, Apr 9 - Sat, Apr 18

SWISS flights from Seattle to Denmark

Our best SWISS deals on Seattle to Denmark flight tickets
SWISS
Feb 14
SEA10:55 amSeattle/Tacoma Intl
61h 05m
2 stops
CPH9:00 amKastrup Copenhagen
Feb 22
CPH7:55 pmKastrup Copenhagen
35h 48m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
$561
Find similar
SWISS
Dec 25
SEA1:35 pmSeattle/Tacoma Intl
20h 30m
2 stops
CPH7:05 pmKastrup Copenhagen
Jan 11
CPH7:55 pmKastrup Copenhagen
35h 48m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
$916
Find similar
SWISS
Dec 25
SEA1:35 pmSeattle/Tacoma Intl
25h 50m
2 stops
CPH12:25 amKastrup Copenhagen
Jan 11
CPH7:55 pmKastrup Copenhagen
35h 48m
2 stops
SEA10:43 pmSeattle/Tacoma Intl
$1,062
Find similar

Icelandair flights from Seattle to Denmark

Our best Icelandair deals on Seattle to Denmark flight tickets
Icelandair
Mar 18
SEA3:35 pmSeattle/Tacoma Intl
20h 15m
1 stop
CPH7:50 pmKastrup Copenhagen
Mar 27
CPH4:15 pmKastrup Copenhagen
12h 30m
1 stop
SEA8:45 pmSeattle/Tacoma Intl
$496
Find similar
Icelandair
Jan 16
SEA2:35 pmSeattle/Tacoma Intl
12h 10m
1 stop
CPH11:45 amKastrup Copenhagen
May 9
CPH2:00 pmKastrup Copenhagen
12h 55m
1 stop
SEA5:55 pmSeattle/Tacoma Intl
$540
Find similar
Icelandair
Mar 22
SEA3:35 pmSeattle/Tacoma Intl
20h 15m
1 stop
CPH7:50 pmKastrup Copenhagen
Mar 29
CPH5:15 pmKastrup Copenhagen
12h 25m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$562
Find similar

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 December 11, 2025.
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

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 1/12

7:10 am-10:25 am

1 stop18h 15m

Kastrup Copenhagen

Tue 1/27

12:55 pm-10:25 pm

1 stop18h 30m

$490

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 1/24

11:30 am-2:55 pm

2 stops18h 25m

Billund

Sat 1/31

9:55 am-8:46 pm

2 stops19h 51m

$492

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Sat 1/24

2:00 pm-1:20 pm

1 stop14h 20m

Billund

Sat 1/31

6:45 am-12:10 pm

1 stop14h 25m

$494

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/18

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

Fri 3/27

4:15 pm-8:45 pm

1 stop12h 30m

$496

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/19

12:00 pm-3:10 pm

1 stop18h 10m

Kastrup Copenhagen

Thu 4/23

1:35 pm-12:06 am

1 stop19h 31m

$501

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 1/27

8:04 am-11:30 am

2 stops18h 26m

Kastrup Copenhagen

Tue 2/10

10:30 am-4:55 pm

1 stop15h 25m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 1/27

1:25 pm-11:30 am

1 stop13h 05m

Kastrup Copenhagen

Tue 2/10

6:25 am-4:55 pm

1 stop19h 30m

$504

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Fri 2/20

7:00 am-10:00 am

2 stops18h 00m

Billund

Sun 3/1

6:30 am-8:56 pm

2 stops23h 26m

$521

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Thu 4/9

5:35 pm-5:45 pm

1 stop15h 10m

Aalborg

Sat 4/18

10:30 am-7:45 pm

2 stops18h 15m

$657

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Thu 4/9

11:46 am-5:45 pm

2 stops20h 59m

Aalborg

Sat 4/18

10:30 am-7:45 pm

2 stops18h 15m

$662

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, October 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 $523. If you aren’t able to travel to Denmark during the month of October, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $545.

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

The cheapest day to depart from Seattle to Denmark is on a Tuesday. Travelers who choose to depart for Denmark on a Tuesday will often find tickets for as low as $659. 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 $744.

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

Flying to Denmark from Seattle 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 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 $626 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 $598 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 50% 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

$407

Fastest flight time

9h 15m

Direct flights

Wed and Sat

Airports in Denmark

19 airports
The best one-way flight to Denmark from Seattle in the past 72 hours is $407. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $611.
The fastest flight from Seattle to Denmark takes 9h 15m
Direct flights go from Seattle to Denmark on Wednesday and Saturday. The only airline offering direct flights is Scandinavian Airlines.
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?

  • 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
Air FrancePriceFrom $418Free CancellationRating
7.4
1,504 reviews
Search Air France flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,007 reviews
Search Delta flights
IcelandairPriceFrom $422Free CancellationRating
7.0
589 reviews
Search Icelandair flights
American AirlinesPriceFrom $492Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $497Free CancellationRating
7.4
1,605 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $528Free CancellationRating
6.7
7,571 reviews
Search British Airways flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,094 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,626 reviews
Search Lufthansa flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,517 reviews
Search Air Canada flights
KLMPriceFrom $540Free CancellationRating
7.7
1,432 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

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Find better results for your trip to Denmark

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