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Cheap flights from Seattle to Copenhagen from C$ 437

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/8. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
31 Aug — 7 Sep1
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
Explore the most affordable flight options available from Seattle to Copenhagen. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 1 August 2026.

Wed 19/86:50 p.m.
SEA
-
CPH
1 stop19h 40m
United Airlines
Tue 25/812:45 p.m.
CPH
-
SEA
1 stop17h 22m
United Airlines
Deal found 30/7C$ 695
Wed 14/1011:13 p.m.
SEA
-
CPH
2 stops26h 37m
United Airlines
Fri 13/1111:35 a.m.
CPH
-
SEA
2 stops20h 24m
United Airlines
Deal found 28/7C$ 701
Sun 11/106:50 p.m.
SEA
-
CPH
1 stop19h 40m
United Airlines
Wed 25/1111:35 a.m.
CPH
-
SEA
1 stop18h 24m
United Airlines
Deal found 29/7C$ 702
Sat 7/118:30 a.m.
SEA
-
CPH
3 stops41h 55m
United Airlines
Sun 15/1111:35 a.m.
CPH
-
SEA
2 stops40h 42m
United Airlines
Deal found 31/7C$ 704
Tue 27/107:45 a.m.
SEA
-
CPH
1 stop17h 20m
United Airlines
Sat 14/119:50 a.m.
CPH
-
SEA
2 stops19h 57m
United Airlines
Deal found 31/7C$ 705
Tue 18/82:10 p.m.
SEA
-
CPH
1 stop12h 25m
United Airlines
Tue 25/812:45 p.m.
CPH
-
SEA
3 stops39h 23m
United Airlines
Deal found 29/7C$ 707
Tue 11/811:25 p.m.
SEA
-
CPH
1 stop13h 20m
Icelandair
Mon 25/112:55 p.m.
CPH
-
SEA
1 stop13h 05m
Icelandair
Deal found 27/7C$ 709
Thu 22/108:00 a.m.
SEA
-
CPH
1 stop17h 50m
United Airlines
Sat 31/101:10 p.m.
CPH
-
SEA
1 stop32h 50m
United Airlines
Deal found 29/7C$ 711
Mon 12/108:00 a.m.
SEA
-
CPH
1 stop17h 50m
United Airlines
Sat 14/117:10 a.m.
CPH
-
SEA
1 stop13h 50m
United Airlines
Deal found 28/7C$ 715
Wed 19/86:50 p.m.
SEA
-
CPH
1 stop19h 40m
Multiple Airlines
Wed 26/86:00 a.m.
CPH
-
SEA
1 stop19h 59m
Multiple Airlines
Deal found 30/7C$ 718
Tue 13/1011:13 p.m.
SEA
-
CPH
2 stops26h 37m
United Airlines
Sat 14/117:10 a.m.
CPH
-
SEA
1 stop13h 50m
United Airlines
Deal found 28/7C$ 721

Find flight deals from Seattle to Copenhagen

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Copenhagen (CPH). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 1 August 2026.

Round-trip from

C$ 695

One-way from

C$ 437

Popular in

December

Cheapest in

February

Average price

C$ 969

Good round-trip deal

C$ 830 or less
United Airlines
  • United Airlines
  • 19/8-25/8
  • 2 total stops
  • 37h 02m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 11/8
  • 1 total stop
  • 13h 20m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (C$ 7 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (C$ 38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
Search Deals
Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kastrup Copenhagen.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Copenhagen 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, Cheapflights users made 629,999 searches. Data last updated 1 August 2026.
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 - CPH

SEACPH

Seattle/Tacoma Intl

Tue 27/10

7:45 a.m.-9:05 a.m.

1 stop17h 20m

Kastrup Copenhagen

Sat 14/11

7:10 a.m.-12:00 p.m.

1 stop13h 50m

C$ 715

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 19/10

10:59 p.m.-6:45 a.m.

1 stop22h 46m

Kastrup Copenhagen

Sat 24/10

9:00 a.m.-11:04 p.m.

1 stop23h 04m

C$ 743

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 30/8

6:05 a.m.-11:45 a.m.

1 stop20h 40m

Kastrup Copenhagen

Thu 17/9

9:00 a.m.-11:20 p.m.

1 stop23h 20m

C$ 744

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 22/9

3:55 p.m.-10:10 a.m.

Nonstop9h 15m

Kastrup Copenhagen

Tue 29/9

9:55 a.m.-11:20 p.m.

2 stops22h 25m

C$ 796

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 20/9

3:55 p.m.-10:10 a.m.

Nonstop9h 15m

Kastrup Copenhagen

Wed 30/9

9:55 a.m.-11:20 p.m.

2 stops22h 25m

C$ 796

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 24/8

5:45 p.m.-6:15 p.m.

1 stop15h 30m

Kastrup Copenhagen

Mon 31/8

11:50 a.m.-10:05 p.m.

2 stops19h 15m

C$ 822

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 16/9

1:50 p.m.-6:15 p.m.

1 stop19h 25m

Kastrup Copenhagen

Mon 21/9

1:55 p.m.-11:55 p.m.

1 stop19h 00m

C$ 843

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 13/8

6:40 p.m.-5:05 p.m.

1 stop13h 25m

Kastrup Copenhagen

Tue 18/8

6:05 a.m.-5:34 p.m.

1 stop20h 29m

C$ 871

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 16/10

5:10 p.m.-10:50 a.m.

2 stops32h 40m

Kastrup Copenhagen

Sun 25/10

6:05 a.m.-12:59 a.m.

2 stops26h 54m

C$ 873

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 10/8

1:50 p.m.-6:15 p.m.

1 stop19h 25m

Kastrup Copenhagen

Thu 7/1

6:45 a.m.-10:12 p.m.

2 stops24h 27m

C$ 901

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

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

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
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

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 51 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$ 627). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,154). 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.

What is the cheapest time of day to fly from SEA to CPH?

Find hourly flight availability from Seattle to Copenhagen. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2026.

When flying from Seattle to Copenhagen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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$ 789 and C$ 1,172 in August.
The cheapest round-trip price found within the last 5 days was C$ 695 on United Airlines (19 Aug-25 Aug).

Reviews of airlines servicing Copenhagen

Get insights into the airlines that provide service to Copenhagen. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Copenhagen. Reviews last updated 1 August 2026.
Check out reviews from past customers who have flown with Scandinavian Airlines and Icelandair 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
1,912 reviews
Check prices

Comfort

7.3

Crew

8.0

Entertainment

6.8

Overall

7.4

Boarding

7.7

Food

6.8

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
1,912 reviews
Scandinavian Airlines
7.4
Good
1,912 reviews
Check prices

Comfort

7.3

Crew

8.0

Entertainment

6.8

Overall

7.4

Boarding

7.7

Food

6.8

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
716 reviews
Scandinavian Airlines
7.4
Good
1,912 reviews
Check prices

Comfort

7.3

Crew

8.0

Entertainment

6.8

Overall

7.4

Boarding

7.7

Food

6.8

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

Find useful and relevant information for your journey from Seattle to Copenhagen. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Copenhagen?

    To fly from Seattle to Copenhagen, you need to book a flight from Seattle/Tacoma Intl (SEA) to Kastrup Copenhagen (CPH). Nonstop flights to Kastrup Copenhagen from Seattle/Tacoma Intl take 9h 15m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Seattle/Tacoma Intl to Kastrup Copenhagen offered by 2 different airlines.

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 9 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$ 796, United Airlines can have you in Copenhagen from Seattle in 9h 15m. 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 Scandinavian Airlines is currently your cheapest option to Copenhagen, with prices starting at C$ 610. Another option worth looking into is Icelandair, starting at C$ 668 round trip. These flights start at 29% 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%).

  • What are the cheapest flights from Seattle to Copenhagen?

    While on average a flight from Seattle to Copenhagen is generally C$ 1,049, our data shows the cheapest flight currently is C$ 777. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 972 for that flight.

  • 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$ 627). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,154). 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

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Top 2 airlines flying from Seattle to Copenhagen

Discover the top 2 airlines that operate flights from Seattle to Copenhagen. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 1 August 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapestC$ 610AverageC$ 937FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapestC$ 668AverageC$ 823FlexibilityNo cancel feeOn-time76%
Search Icelandair flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Seattle to Copenhagen?

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.

Can Cheapflights notify me if prices for flights from Seattle to Copenhagen become cheaper?

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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