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Cheap flights from Seattle to Copenhagen from C$ 516

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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
25 Jan — 1 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 26 December 2025.

Thu 25/123:05 p.m.SEA - CPH
1 stop16h 30mMultiple Airlines
Sun 11/15:25 p.m.CPH - SEA
1 stop29h 00mMultiple Airlines
Deal found 25/12C$ 762
Sun 28/122:05 p.m.SEA - CPH
1 stop17h 55mDelta
Wed 7/112:05 p.m.CPH - SEA
2 stops35h 44mDelta
Deal found 25/12C$ 923
Tue 30/127:13 a.m.SEA - CPH
2 stops22h 27mDelta
Wed 7/112:05 p.m.CPH - SEA
2 stops35h 44mDelta
Deal found 25/12C$ 930
Thu 25/123:05 p.m.SEA - CPH
1 stop18h 15mDelta
Wed 7/112:05 p.m.CPH - SEA
2 stops35h 44mDelta
Deal found 25/12C$ 941
Sat 27/129:35 a.m.SEA - CPH
2 stops23h 40mDelta
Wed 7/112:05 p.m.CPH - SEA
2 stops35h 44mDelta
Deal found 25/12C$ 948
Sun 28/123:10 p.m.SEA - CPH
1 stop17h 25mUnited Airlines
Mon 5/12:20 p.m.CPH - SEA
2 stops41h 55mUnited Airlines
Deal found 25/12C$ 1,276
Sun 28/123:10 p.m.SEA - CPH
1 stop17h 25mLufthansa
Tue 6/16:20 p.m.CPH - SEA
1 stop28h 00mLufthansa
Deal found 25/12C$ 1,592

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 26 December 2025.

Round-trip from

C$ 611

One-way from

C$ 516

Popular in

June

Cheapest in

October

Average price

C$ 1,028

Good round-trip deal

C$ 665 or less
Icelandair
  • Icelandair
  • 3/2-7/2
  • 2 total stops
  • 33h 20m total
  • Seattle to Copenhagen
Search Deals
Delta
  • Delta
  • 10/5
  • 1 total stop
  • 14h 45m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (C$ 145 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 26 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

Tue 3/2

2:35 p.m.-8:20 p.m.

1 stop20h 45m

Kastrup Copenhagen

Sat 7/2

1:25 p.m.-5:00 p.m.

1 stop12h 35m

C$ 611

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 24/4

7:00 p.m.-4:15 p.m.

1 stop12h 15m

Kastrup Copenhagen

Tue 28/4

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

1 stop12h 55m

C$ 699

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 24/4

3:40 p.m.-12:55 p.m.

1 stop12h 15m

Kastrup Copenhagen

Thu 30/4

2:00 p.m.-8:40 p.m.

1 stop15h 40m

C$ 699

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 20/4

7:00 p.m.-4:15 p.m.

1 stop12h 15m

Kastrup Copenhagen

Thu 30/4

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

1 stop12h 55m

C$ 699

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 19/4

11:59 p.m.-10:50 a.m.

2 stops25h 51m

Kastrup Copenhagen

Sun 26/4

12:45 p.m.-4:37 p.m.

2 stops36h 52m

C$ 700

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 24/4

3:40 p.m.-12:55 p.m.

1 stop12h 15m

Kastrup Copenhagen

Wed 6/5

5:15 p.m.-8:40 p.m.

1 stop12h 25m

C$ 710

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 15/1

2:35 p.m.-7:50 p.m.

1 stop20h 15m

Kastrup Copenhagen

Wed 21/1

6:15 a.m.-5:00 p.m.

1 stop19h 45m

C$ 711

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 18/4

10:40 p.m.-6:30 a.m.

1 stop22h 50m

Kastrup Copenhagen

Sat 25/4

12:20 p.m.-10:03 p.m.

2 stops18h 43m

C$ 721

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 1/5

7:15 a.m.-11:00 a.m.

2 stops18h 45m

Kastrup Copenhagen

Wed 6/5

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

1 stop20h 00m

C$ 721

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 10/5

12:00 p.m.-11:45 a.m.

1 stop14h 45m

C$ 516

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/12

Showing 1-10 of 16 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 19 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$ 314). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 741). 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 26 December 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 51% on flights from Seattle to Copenhagen by exploring options for tickets at noon.

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 26 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
1,627 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

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
1,627 reviews
Scandinavian Airlines
7.4
Good
1,627 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

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
7.0
Good
592 reviews
Scandinavian Airlines
7.4
Good
1,627 reviews
Check prices

Entertainment

6.7

Food

6.7

Boarding

7.6

Crew

8.0

Comfort

7.3

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$ 696, Icelandair can have you in Copenhagen from Seattle in 19h 40m. 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$ 625. Another option worth looking into is Scandinavian Airlines, starting at C$ 632 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$ 770, 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$ 723 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$ 314). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 741). 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 26 December 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 625AverageC$ 756FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 632AverageC$ 772FlexibilityNo 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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