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Cheap flights from Seattle to Copenhagen from C$ 512

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
5 Feb — 12 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap 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 6 January 2026.

Round-trip from

C$ 617

One-way from

C$ 512

Popular in

June

Cheapest in

October

Average price

C$ 738

Good round-trip deal

C$ 669 or less
Icelandair
  • Icelandair
  • 18/2-24/2
  • 2 total stops
  • 25h 15m total
  • Seattle to Copenhagen
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British Airways
  • British Airways
  • 9/2
  • 2 total stops
  • 19h 00m total
  • Seattle to Copenhagen
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Highest demand for flights based on searches. 10% potential increase in price (C$ 134 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 24 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Kastrup Copenhagen.
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Find 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 6 January 2026.

Wed 4/22:35 p.m.SEA - CPH
1 stop12h 10mIcelandair
Tue 10/212:55 p.m.CPH - SEA
1 stop13h 05mIcelandair
Deal found 6/1C$ 617
Mon 2/22:35 p.m.SEA - CPH
1 stop12h 10mIcelandair
Sun 8/29:25 p.m.CPH - SEA
1 stop28h 35mIcelandair
Deal found 6/1C$ 619
Fri 17/47:00 p.m.SEA - CPH
1 stop11h 55mIcelandair
Sun 26/44:55 p.m.CPH - SEA
1 stop12h 45mIcelandair
Deal found 5/1C$ 642
Mon 2/32:35 p.m.SEA - CPH
1 stop12h 10mIcelandair
Sun 8/312:55 p.m.CPH - SEA
1 stop13h 05mIcelandair
Deal found 6/1C$ 648
Tue 17/33:35 p.m.SEA - CPH
1 stop20h 45mIcelandair
Sun 22/39:25 p.m.CPH - SEA
1 stop28h 35mIcelandair
Deal found 6/1C$ 651
Mon 23/33:35 p.m.SEA - CPH
1 stop12h 10mIcelandair
Tue 14/44:55 p.m.CPH - SEA
1 stop12h 45mIcelandair
Deal found 5/1C$ 661
Sun 5/43:40 p.m.SEA - CPH
1 stop12h 15mIcelandair
Tue 14/42:00 p.m.CPH - SEA
1 stop12h 55mIcelandair
Deal found 5/1C$ 673
Sun 8/26:50 p.m.SEA - CPH
1 stop15h 40mBritish Airways
Fri 20/26:55 a.m.CPH - SEA
1 stop13h 35mBritish Airways
Deal found 6/1C$ 677
Mon 16/37:50 p.m.SEA - CPH
1 stop13h 20mBritish Airways
Tue 7/49:45 p.m.CPH - SEA
1 stop22h 50mBritish Airways
Deal found 5/1C$ 679
Wed 2/122:35 p.m.SEA - CPH
1 stop12h 10mIcelandair
Tue 8/121:05 p.m.CPH - SEA
1 stop12h 55mIcelandair
Deal found 6/1C$ 680
Sun 29/310:58 p.m.SEA - CPH
1 stop22h 32mDelta
Sat 4/49:00 a.m.CPH - SEA
1 stop19h 48mDelta
Deal found 6/1C$ 683
Wed 11/28:04 a.m.SEA - CPH
2 stops18h 16mBritish Airways
Tue 17/212:30 p.m.CPH - SEA
1 stop13h 25mBritish Airways
Deal found 6/1C$ 684

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 6 January 2026.
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 8/4

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

1 stop12h 15m

Kastrup Copenhagen

Tue 14/4

4:55 p.m.-8:40 p.m.

1 stop12h 45m

C$ 642

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/4

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

1 stop11h 55m

Kastrup Copenhagen

Fri 17/4

4:55 p.m.-8:40 p.m.

1 stop12h 45m

C$ 642

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/4

6:50 p.m.-11:30 p.m.

1 stop19h 40m

Kastrup Copenhagen

Wed 15/4

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

2 stops36h 52m

C$ 702

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 9/4

6:20 a.m.-10:50 a.m.

2 stops19h 30m

Kastrup Copenhagen

Sun 19/4

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

2 stops36h 52m

C$ 734

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 3/4

7:05 p.m.-10:50 a.m.

2 stops30h 45m

Kastrup Copenhagen

Sun 19/4

12:45 p.m.-10:37 p.m.

2 stops42h 52m

C$ 734

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 9/4

6:20 a.m.-10:50 a.m.

2 stops19h 30m

Kastrup Copenhagen

Tue 14/4

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

2 stops36h 52m

C$ 734

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/4

7:20 a.m.-1:20 p.m.

2 stops21h 00m

Kastrup Copenhagen

Tue 14/4

6:00 a.m.-11:45 a.m.

1 stop14h 45m

C$ 737

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 8/4

7:20 a.m.-1:20 p.m.

2 stops21h 00m

Kastrup Copenhagen

Thu 16/4

11:50 a.m.-11:45 a.m.

1 stop32h 55m

C$ 737

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 7/4

7:20 a.m.-1:20 p.m.

2 stops21h 00m

Kastrup Copenhagen

Mon 13/4

2:45 p.m.-4:30 p.m.

1 stop34h 45m

C$ 737

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 22/1

1:40 p.m.-5:00 p.m.

1 stop18h 20m

Kastrup Copenhagen

Fri 6/2

9:55 a.m.-8:46 p.m.

2 stops19h 51m

C$ 743

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/1

Showing 1-10 of 21 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 2 January 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$ 317). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 745). 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.

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 6 January 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
1,633 reviews
Check prices

Entertainment

6.7

Food

6.7

Crew

8.0

Boarding

7.6

Overall

7.4

Comfort

7.3

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

Food

6.7

Crew

8.0

Boarding

7.6

Overall

7.4

Comfort

7.3

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

Food

6.7

Crew

8.0

Boarding

7.6

Overall

7.4

Comfort

7.3

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$ 705, United Airlines can have you in Copenhagen from Seattle in 12h 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 Icelandair is currently your cheapest option to Copenhagen, with prices starting at C$ 629. Another option worth looking into is Scandinavian Airlines, starting at C$ 636 round trip. These flights start at 27% 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$ 785, our data shows the cheapest flight currently is C$ 475. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 728 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$ 317). Flying from Seattle to Copenhagen in June is currently the most expensive (average of C$ 745). 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 6 January 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 629AverageC$ 761FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 636AverageC$ 778FlexibilityNo 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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