Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Seattle to Copenhagen from C$ 362

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 30/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
9 Jun — 16 Jun1
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 10 May 2026.

Sat 15/84:34 p.m.
SEA
-
CPH
2 stops57h 16m
United Airlines
Mon 24/812:15 p.m.
CPH
-
SEA
2 stops36h 24m
United Airlines
Deal found 8/5C$ 643
Sat 7/118:10 a.m.
SEA
-
CPH
1 stop17h 10m
United Airlines
Sun 15/1111:35 a.m.
CPH
-
SEA
1 stop19h 41m
United Airlines
Deal found 8/5C$ 662
Wed 11/1111:50 p.m.
SEA
-
CPH
2 stops25h 30m
United Airlines
Thu 26/1111:35 a.m.
CPH
-
SEA
1 stop19h 41m
United Airlines
Deal found 6/5C$ 667
Sat 15/84:34 p.m.
SEA
-
CPH
2 stops33h 01m
United Airlines
Sat 22/812:15 p.m.
CPH
-
SEA
2 stops30h 21m
United Airlines
Deal found 9/5C$ 675
Sun 15/113:10 p.m.
SEA
-
CPH
1 stop22h 55m
United Airlines
Thu 19/1111:35 a.m.
CPH
-
SEA
1 stop19h 41m
United Airlines
Deal found 7/5C$ 682
Fri 13/118:00 a.m.
SEA
-
CPH
2 stops18h 25m
United Airlines
Thu 26/1111:35 a.m.
CPH
-
SEA
1 stop19h 41m
United Airlines
Deal found 6/5C$ 693
Sat 7/118:10 a.m.
SEA
-
CPH
1 stop17h 10m
United Airlines
Sat 14/116:55 a.m.
CPH
-
SEA
1 stop14h 15m
United Airlines
Deal found 7/5C$ 696
Tue 13/1010:58 p.m.
SEA
-
CPH
2 stops26h 52m
United Airlines
Tue 10/116:55 a.m.
CPH
-
SEA
1 stop14h 15m
United Airlines
Deal found 7/5C$ 701
Sun 11/106:50 p.m.
SEA
-
CPH
1 stop19h 40m
United Airlines
Wed 11/116:00 a.m.
CPH
-
SEA
1 stop16h 20m
United Airlines
Deal found 7/5C$ 706

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 10 May 2026.

Round-trip from

C$ 643

One-way from

C$ 362

Popular in

December

Cheapest in

February

Average price

C$ 870

Good round-trip deal

C$ 785 or less
United Airlines
  • United Airlines
  • 15/8-24/8
  • 4 total stops
  • 93h 40m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 30/5
  • 1 total stop
  • 21h 55m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 10 May 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

Mon 17/8

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

1 stop17h 50m

Kastrup Copenhagen

Mon 24/8

12:30 p.m.-9:07 p.m.

1 stop17h 37m

C$ 662

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 16/8

8:00 a.m.-10:35 a.m.

1 stop17h 35m

Kastrup Copenhagen

Sun 30/8

12:45 p.m.-9:07 p.m.

1 stop17h 22m

C$ 805
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 10/7

7:15 a.m.-6:45 a.m.

1 stop14h 30m

Kastrup Copenhagen

Wed 26/8

9:00 a.m.-8:20 p.m.

1 stop20h 20m

C$ 892

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 2/9

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

1 stop17h 50m

Kastrup Copenhagen

Thu 17/9

6:10 a.m.-10:42 p.m.

2 stops25h 32m

C$ 894

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 2/9

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

1 stop17h 50m

Kastrup Copenhagen

Sat 19/9

6:40 a.m.-6:32 p.m.

2 stops20h 52m

C$ 894

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 29/6

6:05 a.m.-8:30 a.m.

2 stops17h 25m

Kastrup Copenhagen

Mon 20/7

9:00 a.m.-11:08 p.m.

1 stop23h 08m

C$ 934

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 28/8

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

1 stop17h 50m

Kastrup Copenhagen

Tue 8/9

12:45 p.m.-4:15 p.m.

2 stops36h 30m

C$ 934

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

6:00 a.m.-4:13 p.m.

2 stops19h 13m

C$ 937

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 23/9

7:20 a.m.-11:05 a.m.

2 stops18h 45m

Kastrup Copenhagen

Sat 17/10

9:00 a.m.-10:12 p.m.

1 stop22h 12m

C$ 941

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 31/5

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

1 stop19h 40m

Kastrup Copenhagen

Tue 16/6

6:20 a.m.-2:20 p.m.

2 stops17h 00m

C$ 1,026

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/5

Showing 1-10 of 23 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?

The best time to book flights from Seattle to Copenhagen is 25 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$ 611). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,056). 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 10 May 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
1,771 reviews
Check prices

Entertainment

6.7

Food

6.7

Comfort

7.3

Boarding

7.6

Crew

8.0

Overall

7.4

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
7.4
Good
1,771 reviews
Scandinavian Airlines
7.4
Good
1,771 reviews
Check prices

Entertainment

6.7

Food

6.7

Comfort

7.3

Boarding

7.6

Crew

8.0

Overall

7.4

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
653 reviews
Scandinavian Airlines
7.4
Good
1,771 reviews
Check prices

Entertainment

6.7

Food

6.7

Comfort

7.3

Boarding

7.6

Crew

8.0

Overall

7.4

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 53 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$ 892, United Airlines can have you in Copenhagen from Seattle in 14h 30m. 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$ 656 round trip. These flights start at 24% 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$ 1,928, our data shows the cheapest flight currently is C$ 744. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 807 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$ 611). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,056). 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 10 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 625AverageC$ 694FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 656AverageC$ 779FlexibilityNo 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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.