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Cheap flights from Seattle to Copenhagen from C$ 363

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 26/4. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
29 Apr — 6 May1
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 30 March 2026.

Tue 14/48:00 a.m.
SEA
-
CPH
1 stop17h 50m
United Airlines
Wed 22/412:45 p.m.
CPH
-
SEA
2 stops42h 57m
United Airlines
Deal found 27/3C$ 688
Sat 25/43:40 p.m.
SEA
-
CPH
1 stop12h 15m
Icelandair
Wed 29/42:00 p.m.
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 29/3C$ 692
Tue 28/47:00 a.m.
SEA
-
CPH
2 stops18h 50m
United Airlines
Tue 5/512:45 p.m.
CPH
-
SEA
2 stops38h 47m
United Airlines
Deal found 29/3C$ 695
Sat 18/47:37 p.m.
SEA
-
CPH
2 stops54h 13m
United Airlines
Wed 29/412:45 p.m.
CPH
-
SEA
2 stops40h 03m
United Airlines
Deal found 25/3C$ 703
Sat 18/47:00 p.m.
SEA
-
CPH
1 stop11h 55m
Icelandair
Tue 12/52:00 p.m.
CPH
-
SEA
1 stop15h 40m
Icelandair
Deal found 26/3C$ 704
Sun 19/47:00 p.m.
SEA
-
CPH
1 stop17h 45m
Icelandair
Sun 10/510:35 p.m.
CPH
-
SEA
1 stop28h 20m
Icelandair
Deal found 26/3C$ 706
Mon 4/57:00 p.m.
SEA
-
CPH
1 stop11h 55m
Icelandair
Fri 8/52:00 p.m.
CPH
-
SEA
1 stop12h 55m
Icelandair
Deal found 25/3C$ 714
Tue 14/48:42 a.m.
SEA
-
CPH
2 stops17h 08m
United Airlines
Fri 24/412:45 p.m.
CPH
-
SEA
2 stops18h 59m
United Airlines
Deal found 27/3C$ 727

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 30 March 2026.

Round-trip from

C$ 688

One-way from

C$ 363

Popular in

December

Cheapest in

February

Average price

C$ 747

Good round-trip deal

C$ 823 or less
United Airlines
  • United Airlines
  • 14/4-22/4
  • 3 total stops
  • 60h 47m total
  • Seattle to Copenhagen
Search Deals
26/4
  • 26/4
  • 3 total stops
  • 48h 25m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 29 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 30 March 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

Sat 18/4

7:37 p.m.-10:50 a.m.

2 stops54h 13m

Kastrup Copenhagen

Wed 29/4

12:45 p.m.-7:48 p.m.

2 stops40h 03m

C$ 703

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 20/4

8:00 a.m.-10:50 a.m.

1 stop17h 50m

Kastrup Copenhagen

Thu 11/6

12:45 p.m.-9:08 p.m.

1 stop17h 23m

C$ 706
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 4/5

7:00 p.m.-3:55 p.m.

1 stop11h 55m

Kastrup Copenhagen

Fri 8/5

2:00 p.m.-5:55 p.m.

1 stop12h 55m

C$ 714

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 19/4

7:00 p.m.-3:55 p.m.

1 stop11h 55m

Kastrup Copenhagen

Sat 6/6

7:20 a.m.-11:45 a.m.

1 stop13h 25m

C$ 771

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 8/5

4:15 p.m.-6:45 a.m.

1 stop29h 30m

Kastrup Copenhagen

Sun 17/5

9:00 a.m.-8:10 p.m.

1 stop20h 10m

C$ 781

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 8/5

5:40 p.m.-4:20 p.m.

1 stop13h 40m

Kastrup Copenhagen

Tue 19/5

9:00 a.m.-10:29 p.m.

1 stop22h 29m

C$ 806

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 9/5

1:45 p.m.-11:00 a.m.

1 stop12h 15m

Kastrup Copenhagen

Sun 17/5

6:00 a.m.-4:30 p.m.

1 stop19h 30m

C$ 835

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 22/4

10:48 a.m.-5:20 p.m.

2 stops21h 32m

Kastrup Copenhagen

Thu 11/6

12:45 p.m.-9:08 p.m.

1 stop17h 23m

C$ 881

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 24/4

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

1 stop13h 25m

Kastrup Copenhagen

Fri 1/5

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

2 stops19h 15m

C$ 913

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 17/4

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

1 stop13h 25m

Kastrup Copenhagen

Thu 11/6

12:20 p.m.-5:30 p.m.

1 stop14h 10m

C$ 1,057

Flights are sorted by cheapest round-trip flights first.

Deals found on 29/3

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Copenhagen. Price data was last updated on 13 March 2026.

The best time to book flights from Seattle to Copenhagen is 78 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, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 318). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 752). 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?

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 30 March 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
7.3
Good
1,731 reviews
Check prices

Boarding

7.6

Overall

7.3

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2026

OSL - CPH

The flight was very short. The seats were very comfortable. No television or entertainment.
Scandinavian Airlines
7.3
Good
1,731 reviews
Scandinavian Airlines
7.3
Good
1,731 reviews
Check prices

Boarding

7.6

Overall

7.3

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2026

OSL - CPH

The flight was very short. The seats were very comfortable. No television or entertainment.
Icelandair
7.0
Good
627 reviews
Scandinavian Airlines
7.3
Good
1,731 reviews
Check prices

Boarding

7.6

Overall

7.3

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2026

OSL - CPH

The flight was very short. The seats were very comfortable. No television or entertainment.

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.

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 57 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$ 771, United Airlines can have you in Copenhagen from Seattle in 11h 55m. 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$ 622. Another option worth looking into is Scandinavian Airlines, starting at C$ 642 round trip. These flights start at 26% lower than the current average price 3 months from now.

  • What are the cheapest flights from Seattle to Copenhagen?

    While on average a flight from Seattle to Copenhagen is generally C$ 928, our data shows the cheapest flight currently is C$ 790. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 906 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, November is the cheapest month in which you can book a flight from Seattle to Copenhagen (average of C$ 318). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 752). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 30 March 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 622AverageC$ 704FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 642AverageC$ 792FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines 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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