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Cheap flights from Seattle to Denmark from $330

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 5/1. 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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Find the cheapest flights from Seattle to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
3:35 pm - 7:50 pmSEA-CPH
20h 15m1 stop
Icelandair Logo
12:55 pm - 6:00 pmCPH-SEA
13h 05m1 stop
$469Icelandair
Find Deal
Sun, Mar 15 - Fri, Mar 20
Icelandair Logo
3:45 pm - 4:15 pmSEA-CPH
15h 30m1 stop
Icelandair Logo
2:00 pm - 8:45 pmCPH-SEA
15h 45m1 stop
$471Icelandair
Find Deal
Tue, May 12 - Tue, May 26
British Airways Logo
6:50 pm - 12:30 pmSEA-BLL
32h 40m1 stop
British Airways Logo
8:45 pm - 11:30 amBLL-SEA
23h 45m1 stop
$492British Airways
Find Deal
Mon, Feb 16 - Mon, Mar 2
British Airways Logo
6:50 pm - 4:55 pmSEA-CPH
13h 05m1 stop
British Airways Logo
7:20 am - 11:35 amCPH-SEA
13h 15m1 stop
$493British Airways
Find Deal
Tue, Jan 13 - Wed, Apr 8
Scandinavian Airlines Logo
7:15 am - 12:00 pmSEA-CPH
19h 45m1 stop
Scandinavian Airlines Logo
12:45 pm - 10:25 pmCPH-SEA
18h 40m1 stop
$501Scandinavian Airlines
Find Deal
Sun, Jan 11 - Mon, Apr 6
Scandinavian Airlines Logo
7:15 am - 12:00 pmSEA-CPH
19h 45m1 stop
Scandinavian Airlines Logo
7:00 am - 10:16 pmCPH-SEA
24h 16m2 stops
$504Scandinavian Airlines
Find Deal
Sun, Jan 11 - Mon, Apr 6
Delta Logo
1:40 pm - 2:35 pmSEA-BLL
15h 55m1 stop
Delta Logo
2:30 pm - 11:40 amBLL-SEA
30h 10m1 stop
$522Delta
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Tue, Feb 17 - Thu, Feb 26
Delta Logo
1:40 pm - 2:35 pmSEA-BLL
15h 55m1 stop
Delta Logo
2:30 pm - 11:40 amBLL-SEA
30h 10m1 stop
$523Delta
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Thu, Feb 19 - Wed, Feb 25
Air France Logo
2:15 pm - 11:00 pmSEA-BLL
23h 45m1 stop
Air France Logo
10:20 am - 11:35 amBLL-SEA
34h 15m1 stop
$525Air France
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Mon, Feb 16 - Sun, Mar 1
Air France Logo
3:05 pm - 1:45 pmSEA-AAL
13h 40m1 stop
Air France Logo
6:00 am - 11:50 amAAL-SEA
14h 50m1 stop
$629Air France
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Fri, Dec 5 - Tue, Dec 9

Lufthansa flights from Seattle to Denmark

Our best Lufthansa deals on Seattle to Denmark flight tickets
Lufthansa
Mar 5
SEA10:05 amSeattle/Tacoma Intl
16h 55m
2 stops
CPH12:00 pmKastrup Copenhagen
Mar 17
CPH6:50 amKastrup Copenhagen
14h 20m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$520
Find similar
Lufthansa
Jan 9
SEA3:10 pmSeattle/Tacoma Intl
17h 25m
1 stop
CPH5:35 pmKastrup Copenhagen
Jan 16
CPH6:50 amKastrup Copenhagen
21h 26m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$528
Find similar
Lufthansa
Jan 9
SEA2:10 pmSeattle/Tacoma Intl
18h 25m
2 stops
CPH5:35 pmKastrup Copenhagen
Jan 16
CPH6:50 amKastrup Copenhagen
21h 26m
2 stops
SEA7:16 pmSeattle/Tacoma Intl
$533
Find similar

Air Canada flights from Seattle to Denmark

Our best Air Canada deals on Seattle to Denmark flight tickets
Air Canada
Apr 6
SEA8:00 pmSeattle/Tacoma Intl
29h 50m
2 stops
CPH10:50 amKastrup Copenhagen
Apr 11
CPH10:10 amKastrup Copenhagen
32h 23m
2 stops
SEA9:33 amSeattle/Tacoma Intl
$526
Find similar
Air Canada
Apr 2
SEA5:50 amSeattle/Tacoma Intl
20h 00m
2 stops
CPH10:50 amKastrup Copenhagen
Apr 9
CPH6:40 amKastrup Copenhagen
21h 38m
2 stops
SEA7:18 pmSeattle/Tacoma Intl
$535
Find similar
Air Canada
Apr 6
SEA8:00 amSeattle/Tacoma Intl
17h 50m
1 stop
CPH10:50 amKastrup Copenhagen
Apr 11
CPH10:10 amKastrup Copenhagen
18h 08m
2 stops
SEA7:18 pmSeattle/Tacoma Intl
$536
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 November 20, 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

Sun 3/15

3:35 pm-7:50 pm

1 stop20h 15m

Kastrup Copenhagen

Fri 3/20

12:55 pm-6:00 pm

1 stop13h 05m

$469

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 5/12

3:45 pm-4:15 pm

1 stop15h 30m

Kastrup Copenhagen

Tue 5/26

2:00 pm-8:45 pm

1 stop15h 45m

$471

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/16

6:50 pm-12:30 pm

1 stop32h 40m

Billund

Mon 3/2

8:45 pm-11:30 am

1 stop23h 45m

$492

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 1/13

6:50 pm-4:55 pm

1 stop13h 05m

Kastrup Copenhagen

Wed 4/8

7:20 am-11:35 am

1 stop13h 15m

$493

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 1/11

7:15 am-12:00 pm

1 stop19h 45m

Kastrup Copenhagen

Mon 4/6

12:45 pm-10:25 pm

1 stop18h 40m

$501

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 1/11

7:15 am-12:00 pm

1 stop19h 45m

Kastrup Copenhagen

Mon 4/6

7:00 am-10:16 pm

2 stops24h 16m

$504

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Tue 2/17

1:40 pm-2:35 pm

1 stop15h 55m

Billund

Thu 2/26

2:30 pm-11:40 am

1 stop30h 10m

$522

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 2/19

1:40 pm-2:35 pm

1 stop15h 55m

Billund

Wed 2/25

2:30 pm-11:40 am

1 stop30h 10m

$523

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Mon 2/16

2:15 pm-11:00 pm

1 stop23h 45m

Billund

Sun 3/1

10:20 am-11:35 am

1 stop34h 15m

$525

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Fri 12/5

3:05 pm-1:45 pm

1 stop13h 40m

Aalborg

Tue 12/9

6:00 am-11:50 am

1 stop14h 50m

$629

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 January is also cheap. Prices for this month can be found on momondo for an average of $568.

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 $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 $746.

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 $624 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 $588 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 44% 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

$456

Direct flights

None
The best one-way flight to Denmark from Seattle in the past 72 hours is $456. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $568.
There are no direct flights from Seattle to Denmark. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Kastrup Copenhagen Airport.
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
1,493 reviews
Search Air France flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,002 reviews
Search Delta flights
IcelandairPriceFrom $424Free CancellationRating
7.0
581 reviews
Search Icelandair flights
American AirlinesPriceFrom $492Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
Scandinavian AirlinesPriceFrom $495Free CancellationRating
7.4
1,584 reviews
Search Scandinavian Airlines flights
FinnairPriceFrom $504Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
British AirwaysPriceFrom $528Free CancellationRating
6.7
7,533 reviews
Search British Airways flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,463 reviews
Search Air Canada flights
United AirlinesPriceFrom $560Free CancellationRating
7.4
9,029 reviews
Search United Airlines flights
KLMPriceFrom $582Free CancellationRating
7.7
1,414 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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