Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Seattle to Denmark from $328

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 2/8. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Seattle to Denmark

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
7:00 am - 12:05 pm
SEA
-
BLL
20h 05m2 stops
British Airways Logo
12:10 pm - 11:35 am
BLL
-
SEA
32h 25m1 stop
$489British Airways
Wed, Apr 29 - Wed, May 6
British Airways Logo
1:35 pm - 12:05 pm
SEA
-
BLL
13h 30m1 stop
British Airways Logo
12:10 pm - 11:35 am
BLL
-
SEA
32h 25m1 stop
$491British Airways
Wed, Apr 29 - Wed, May 6
Icelandair Logo
3:35 pm - 11:45 am
SEA
-
CPH
12h 10m1 stop
Icelandair Logo
2:00 pm - 8:40 pm
CPH
-
SEA
15h 40m1 stop
$502Icelandair
Wed, Mar 18 - Thu, Apr 2
Icelandair Logo
3:40 pm - 9:45 pm
SEA
-
CPH
21h 05m1 stop
Icelandair Logo
5:15 pm - 8:40 pm
CPH
-
SEA
12h 25m1 stop
$511Icelandair
Sun, Apr 19 - Thu, Apr 23
Lufthansa Logo
3:40 pm - 6:40 pm
SEA
-
CPH
18h 00m2 stops
Lufthansa Logo
6:40 am - 12:20 pm
CPH
-
SEA
14h 40m1 stop
$515Lufthansa
Fri, Apr 24 - Wed, Apr 29
Lufthansa Logo
10:05 am - 11:05 pm
SEA
-
CPH
28h 00m2 stops
Lufthansa Logo
8:55 am - 2:20 pm
CPH
-
SEA
13h 25m1 stop
$516Lufthansa
Fri, Mar 6 - Wed, Mar 11
Delta Logo
5:25 am - 1:30 pm
SEA
-
BLL
23h 05m2 stops
Delta Logo
6:00 am - 11:19 am
BLL
-
SEA
38h 19m2 stops
$536Delta
Thu, Jan 15 - Mon, Jan 19
Scandinavian Airlines Logo
11:30 am - 2:00 pm
SEA
-
AAL
17h 30m2 stops
Scandinavian Airlines Logo
2:35 pm - 11:22 pm
AAL
-
SEA
41h 47m2 stops
$627Scandinavian Airlines
Fri, Jan 30 - Tue, Feb 3
Scandinavian Airlines Logo
2:02 pm - 9:45 am
SEA
-
AAR
34h 43m2 stops
Scandinavian Airlines Logo
2:30 pm - 11:22 pm
AAR
-
SEA
41h 52m2 stops
$658Scandinavian Airlines
Fri, Jan 30 - Tue, Feb 3
Delta Logo
5:30 pm - 5:45 pm
SEA
-
AAL
15h 15m1 stop
Delta Logo
6:35 am - 7:45 pm
AAL
-
SEA
22h 10m2 stops
$659Delta
Thu, Apr 9 - Sat, Apr 18

United Airlines flights from Seattle to Denmark

Our best United Airlines deals on Seattle to Denmark flight tickets
United Airlines
Apr 20
SEA11:59 pmSeattle/Tacoma Intl
25h 51m
2 stops
CPH10:50 amKastrup Copenhagen
Apr 30
CPH6:10 amKastrup Copenhagen
15h 10m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$525
Find similar
United Airlines
Apr 22
SEA8:55 amSeattle/Tacoma Intl
24h 45m
2 stops
CPH6:40 pmKastrup Copenhagen
May 2
CPH12:45 pmKastrup Copenhagen
39h 15m
2 stops
SEA7:00 pmSeattle/Tacoma Intl
$530
Find similar
United Airlines
Apr 21
SEA7:00 amSeattle/Tacoma Intl
18h 50m
2 stops
CPH10:50 amKastrup Copenhagen
May 1
CPH6:30 amKastrup Copenhagen
22h 15m
2 stops
SEA7:45 pmSeattle/Tacoma Intl
$535
Find similar

Air Canada flights from Seattle to Denmark

Our best Air Canada deals on Seattle to Denmark flight tickets
Air Canada
Apr 24
SEA8:00 pmSeattle/Tacoma Intl
29h 50m
2 stops
CPH10:50 amKastrup Copenhagen
Apr 29
CPH12:45 pmKastrup Copenhagen
18h 06m
1 stop
SEA9:51 pmSeattle/Tacoma Intl
$520
Find similar
Air Canada
Mar 18
SEA8:10 amSeattle/Tacoma Intl
21h 55m
2 stops
CPH2:05 pmKastrup Copenhagen
Mar 31
CPH12:45 pmKastrup Copenhagen
29h 48m
2 stops
SEA9:33 amSeattle/Tacoma Intl
$523
Find similar
Air Canada
Mar 19
SEA8:10 amSeattle/Tacoma Intl
20h 15m
2 stops
CPH12:25 pmKastrup Copenhagen
Mar 31
CPH12:45 pmKastrup Copenhagen
18h 06m
1 stop
SEA9:51 pmSeattle/Tacoma Intl
$528
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 18, 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

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 4/29

7:00 am-12:05 pm

2 stops20h 05m

Billund

Wed 5/6

12:10 pm-11:35 am

1 stop32h 25m

$489

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Wed 4/29

1:35 pm-12:05 pm

1 stop13h 30m

Billund

Wed 5/6

12:10 pm-11:35 am

1 stop32h 25m

$491

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 3/18

3:35 pm-11:45 am

1 stop12h 10m

Kastrup Copenhagen

Thu 4/2

2:00 pm-8:40 pm

1 stop15h 40m

$502

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 4/19

3:40 pm-9:45 pm

1 stop21h 05m

Kastrup Copenhagen

Thu 4/23

5:15 pm-8:40 pm

1 stop12h 25m

$511

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 4/24

3:40 pm-6:40 pm

2 stops18h 00m

Kastrup Copenhagen

Wed 4/29

6:40 am-12:20 pm

1 stop14h 40m

$515

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 3/6

10:05 am-11:05 pm

2 stops28h 00m

Kastrup Copenhagen

Wed 3/11

8:55 am-2:20 pm

1 stop13h 25m

$516

SeattleBillund

SEA - BLL

SEABLL

Seattle/Tacoma Intl

Thu 1/15

5:25 am-1:30 pm

2 stops23h 05m

Billund

Mon 1/19

6:00 am-11:19 am

2 stops38h 19m

$536

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Fri 1/30

11:30 am-2:00 pm

2 stops17h 30m

Aalborg

Tue 2/3

2:35 pm-11:22 pm

2 stops41h 47m

$627

SeattleAarhus

SEA - AAR

SEAAAR

Seattle/Tacoma Intl

Fri 1/30

2:02 pm-9:45 am

2 stops34h 43m

Aarhus

Tue 2/3

2:30 pm-11:22 pm

2 stops41h 52m

$658

SeattleAalborg

SEA - AAL

SEAAAL

Seattle/Tacoma Intl

Thu 4/9

5:30 pm-5:45 pm

1 stop15h 15m

Aalborg

Sat 4/18

6:35 am-7:45 pm

2 stops22h 10m

$659

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $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 $742.

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 $625 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 51% 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

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 $407. The best round-trip flight deal from Seattle to Denmark found on momondo in the last 72 hours is $617.
The fastest flight from Seattle to Denmark takes 9h 15m
Direct flights go from Seattle to Denmark on Monday, Wednesday, Saturday and Sunday. 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
1,507 reviews
Search Air France flights
DeltaPriceFrom $421Free CancellationRating
7.9
8,005 reviews
Search Delta flights
IcelandairPriceFrom $423Free CancellationRating
7.0
591 reviews
Search Icelandair flights
Scandinavian AirlinesPriceFrom $498Free CancellationRating
7.4
1,607 reviews
Search Scandinavian Airlines flights
United AirlinesPriceFrom $535Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
LufthansaPriceFrom $535Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights
Air CanadaPriceFrom $536Free CancellationRating
7.1
10,534 reviews
Search Air Canada flights
KLMPriceFrom $540Free CancellationRating
7.7
1,428 reviews
Search KLM flights
British AirwaysPriceFrom $544Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
FinnairPriceFrom $580Free CancellationRating
7.6
1,338 reviews
Search Finnair 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

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
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sat 1/17
Sat 1/24
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Denmark

Popular cities in Denmark

Popular flights according to clicks in the last 7 days on momondo
Flights to Copenhagenfrom $361
Flights to Billundfrom $389
Flights to Aalborgfrom $424
Flights to Aarhusfrom $452
Flights to Sønderborgfrom $964
Flights to Karupfrom $760
Flights to Esbjergfrom $1,311