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Cheap flights from Seattle to Copenhagen from C$ 504

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 13/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
30 Jan — 6 Feb1
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 31 December 2025.

Tue 30/1211:59 p.m.SEA - CPH
2 stops27h 26mUnited Airlines
Tue 13/18:55 a.m.CPH - SEA
2 stops22h 21mUnited Airlines
Deal found 29/12C$ 754
Tue 30/1211:59 p.m.SEA - CPH
2 stops38h 06mUnited Airlines
Sun 4/12:30 p.m.CPH - SEA
2 stops41h 42mUnited Airlines
Deal found 29/12C$ 1,934
Tue 30/126:00 a.m.SEA - CPH
3 stops47h 20mCathay Pacific
Tue 13/16:55 a.m.CPH - SEA
3 stops46h 39mCathay Pacific
Deal found 29/12C$ 16,447

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 31 December 2025.

Round-trip from

C$ 645

One-way from

C$ 504

Popular in

June

Cheapest in

October

Average price

C$ 1,029

Good round-trip deal

C$ 665 or less
Icelandair
  • Icelandair
  • 15/3-19/3
  • 2 total stops
  • 33h 20m total
  • Seattle to Copenhagen
Search Deals
13/2
  • 13/2
  • 3 total stops
  • 38h 45m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 147 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 26 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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 31 December 2025.
Use the filters below to find and compare flights from Seattle to Copenhagen that are best for you.

Fly from

Seattle

Fly to

Copenhagen

Route

Depart

Return

Price

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 21/1

10:58 a.m.-12:25 p.m.

2 stops16h 27m

Kastrup Copenhagen

Fri 23/1

6:50 a.m.-9:12 p.m.

3 stops23h 22m

C$ 706

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 19/3

10:31 a.m.-12:15 p.m.

2 stops17h 44m

Kastrup Copenhagen

Wed 25/3

8:40 a.m.-9:16 p.m.

2 stops20h 36m

C$ 738

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 19/3

10:25 p.m.-1:10 p.m.

2 stops30h 45m

Kastrup Copenhagen

Wed 25/3

6:00 a.m.-7:59 p.m.

2 stops21h 59m

C$ 754

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 19/3

7:15 a.m.-11:05 p.m.

2 stops31h 50m

Kastrup Copenhagen

Mon 23/3

6:55 a.m.-10:16 p.m.

2 stops23h 21m

C$ 754

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 19/3

7:15 a.m.-11:05 p.m.

2 stops31h 50m

Kastrup Copenhagen

Sun 22/3

10:05 a.m.-1:10 p.m.

1 stop35h 05m

C$ 773

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 18/1

7:00 a.m.-11:25 a.m.

2 stops19h 25m

Kastrup Copenhagen

Wed 21/1

10:05 a.m.-9:12 p.m.

3 stops44h 07m

C$ 789

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 7/6

7:20 p.m.-11:40 a.m.

2 stops31h 20m

Kastrup Copenhagen

Thu 18/6

12:40 p.m.-10:59 p.m.

2 stops19h 19m

C$ 858

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 19/3

8:10 a.m.-11:05 p.m.

2 stops30h 55m

Kastrup Copenhagen

Thu 26/3

7:05 a.m.-1:10 p.m.

1 stop14h 05m

C$ 884

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 16/6

7:15 a.m.-8:55 a.m.

1 stop16h 40m

Kastrup Copenhagen

Thu 30/7

12:45 p.m.-10:32 a.m.

1 stop30h 47m

C$ 906

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 28/6

6:50 p.m.-6:40 p.m.

1 stop14h 50m

Kastrup Copenhagen

Wed 5/8

12:25 p.m.-7:46 p.m.

1 stop16h 21m

C$ 908

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/12

Showing 1-10 of 23 results
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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
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 26 December 2025.

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$ 315). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 742). 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 31 December 2025.
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
1,633 reviews
Check prices

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that
Scandinavian Airlines
7.4
Good
1,633 reviews
Scandinavian Airlines
7.4
Good
1,633 reviews
Check prices

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that
Icelandair
7.1
Good
593 reviews
Scandinavian Airlines
7.4
Good
1,633 reviews
Check prices

Entertainment

6.7

Comfort

7.3

Crew

8.0

Food

6.7

Boarding

7.6

Overall

7.4

Reviews

1 / 20
2.0
Mediocre

Anonymous,Dec 2025

SFO - CPH

Flight was changed causing 5 hour layover in Copenhagen And no accommodations were made to account for this at the lounge or anything like that

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 58 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$ 706, United Airlines can have you in Copenhagen from Seattle in 16h 27m. 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$ 626. Another option worth looking into is Scandinavian Airlines, starting at C$ 633 round trip. These flights start at 26% 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 (75%), Scandinavian Airlines (75%), Delta (75%).

  • What are the cheapest flights from Seattle to Copenhagen?

    While on average a flight from Seattle to Copenhagen is generally C$ 780, our data shows the cheapest flight currently is C$ 472. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 724 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$ 315). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 742). 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 31 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 626AverageC$ 757FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 633AverageC$ 773FlexibilityNo 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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