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Cheap flights from Seattle to Copenhagen from C$ 342

SEA — CPH
26 Nov — 3 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Copenhagen

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Copenhagen

Wed 28/103:50 p.m. -
1 stop12h 35m
Sat 21/117:15 a.m. -
1 stop13h 45m
Deal found 25/10C$ 726
Sat 31/1010:50 a.m. -
2 stops22h 40m
Sun 15/116:05 a.m. -
1 stop15h 55m
Deal found 26/10C$ 727
Wed 18/116:30 a.m. -
2 stops42h 50m
Fri 27/116:05 a.m. -
2 stops23h 54m
Deal found 27/10C$ 729
Sun 8/112:50 p.m. -
1 stop12h 35m
Tue 8/128:55 a.m. -
2 stops20h 52m
Deal found 23/10C$ 730
Fri 4/122:50 p.m. -
1 stop17h 45m
Tue 8/121:10 p.m. -
1 stop32h 50m
Deal found 24/10C$ 732
Fri 6/113:49 p.m. -
2 stops22h 21m
Tue 17/118:55 a.m. -
2 stops20h 52m
Deal found 23/10C$ 736
Fri 30/1010:50 a.m. -
2 stops16h 35m
Thu 26/117:15 a.m. -
1 stop13h 45m
Deal found 27/10C$ 737
Fri 30/1010:50 a.m. -
2 stops16h 35m
Tue 24/111:10 p.m. -
1 stop32h 50m
Deal found 27/10C$ 741
Fri 30/1010:56 p.m. -
2 stops34h 34m
Sun 22/118:55 a.m. -
1 stop13h 05m
Deal found 25/10C$ 743
Sun 1/117:04 p.m. -
2 stops32h 21m
Tue 17/118:55 a.m. -
2 stops18h 02m
Deal found 26/10C$ 744
Mon 2/111:50 p.m. -
1 stop13h 10m
Fri 27/118:55 a.m. -
1 stop13h 05m
Deal found 27/10C$ 746
Fri 6/113:49 p.m. -
2 stops16h 46m
Sun 15/117:15 a.m. -
2 stops24h 52m
Deal found 23/10C$ 747

Find flight deals from Seattle to Copenhagen

Round-trip from

C$ 725

One-way from

C$ 342

Popular in

December

Cheapest in

February

Average price

C$ 833
United Airlines
  • United Airlines
  • 3/3-28/3
  • 2 total stops
  • 30h 20m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 9/12-31/12
  • 1 total stop
  • 20h 10m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (C$ 40 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 41 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Wed 9/12

6:45 p.m.-2:35 p.m.

1 stop34h 50m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 694

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Tue 17/11

5:05 a.m.-10:20 a.m.

2 stops20h 15m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 698

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 16/11

7:35 p.m.-12:25 p.m.

3 stops31h 50m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 719

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sat 12/12

7:30 p.m.-11:10 p.m.

2 stops42h 40m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 723

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 4/12

2:50 p.m.-11:10 p.m.

1 stop23h 20m

Kastrup Copenhagen

Sat 12/12

7:15 a.m.-12:00 p.m.

1 stop13h 45m

C$ 726

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Mon 7/12

2:30 p.m.-11:50 a.m.

3 stops36h 20m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 729

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 4/12

2:50 p.m.-5:35 p.m.

1 stop17h 45m

Kastrup Copenhagen

Tue 8/12

1:10 p.m.-1:00 p.m.

1 stop32h 50m

C$ 732

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Wed 25/11

2:50 p.m.-12:25 p.m.

1 stop12h 35m

Kastrup Copenhagen

Wed 2/12

1:10 p.m.-8:59 p.m.

2 stops40h 49m

C$ 741

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Sun 15/11

12:28 p.m.-10:20 a.m.

3 stops60h 52m

Kastrup Copenhagen

Wed 31/12

12:00 a.m.-3:00 p.m.

Nonstop0h 00m

C$ 743

SeattleCopenhagen

SEA Seattle/Tacoma Intl - CPH Kastrup Copenhagen

SEACPH

Seattle/Tacoma Intl

Fri 4/12

7:00 a.m.-10:20 a.m.

2 stops18h 20m

Kastrup Copenhagen

Sun 6/12

2:15 p.m.-12:00 p.m.

1 stop30h 45m

C$ 757

Flights are sorted by cheapest round-trip flights first.

Deals found on 24/10

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Copenhagen

Have a flexible travel schedule? Discover the best time to fly to Copenhagen from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Copenhagen

How far ahead should I book a flight from Seattle to Copenhagen?

The best time to book flights from Seattle to Copenhagen is 76 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Seattle to Copenhagen?

Currently, February is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 702). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Copenhagen?

Airfare is below average for this route at the moment.

Seattle to Copenhagen flights typically cost between C$ 737 and C$ 932 in March.
The cheapest round-trip price found within the last 5 days was C$ 725 on United Airlines (3 Mar-28 Mar).

Reviews of airlines servicing Copenhagen

Check out reviews from past customers who have flown with Scandinavian Airlines,Icelandair, andLufthansa from Seattle to Copenhagen to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
2,027 reviews
Check prices

Food

6.8

Overall

7.4

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Scandinavian Airlines
7.4
Good
2,027 reviews
Scandinavian Airlines
7.4
Good
2,027 reviews
Check prices

Food

6.8

Overall

7.4

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Icelandair
7.0
Good
766 reviews
Scandinavian Airlines
7.4
Good
2,027 reviews
Check prices

Food

6.8

Overall

7.4

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Lufthansa
6.8
Okay
8,292 reviews
Scandinavian Airlines
7.4
Good
2,027 reviews
Check prices

Food

6.8

Overall

7.4

Boarding

7.7

Comfort

7.4

Entertainment

6.8

Crew

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

Related info for your journey

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 10 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Copenhagen?

    For as low as C$ 872, United Airlines can have you in Copenhagen from Seattle in 17h. There are 7805 km between Seattle and Copenhagen. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines flying from Seattle to Copenhagen round-trip?

    Flying on Icelandair is currently your cheapest option to Copenhagen, with prices starting at C$ 670. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and Lufthansa, with the lowest prices starting at C$ 683 and C$ 719, respectively. These flights start at 25% lower than the current average price 3 months from now.

  • What are the most reliable airlines from Seattle to Copenhagen?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Copenhagen on time: Air France (73%), Scandinavian Airlines (73%), Delta (73%).

  • Can I find deals for flights from Seattle to Copenhagen that include hotel bookings?

    Yes. In addition to deals on Seattle to Copenhagen flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Copenhagen?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Copenhagen.

  • Can I find deals for business class flights from Seattle to Copenhagen?

    Yes. Cheapflights offers flight deals from Seattle to Copenhagen by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Copenhagen?

    Currently, February is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 702). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,218). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Top 3 airlines flying from Seattle to Copenhagen

AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 670AverageC$ 823FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 683AverageC$ 1,087FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
LufthansaCheapestC$ 719AverageC$ 720FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Seattle to Copenhagen. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Seattle to Copenhagen?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Seattle to Copenhagen.

Can Cheapflights find flights from Seattle to Copenhagen with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Seattle to Copenhagen flexibly with Cheapflights today.

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Yes, Cheapflights offers price alerts on Seattle to Copenhagen flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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