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Cheap flights from Seattle to Copenhagen from C$ 272

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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
22 May — 29 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 22 April 2026.

Sun 16/88:00 a.m.
SEA
-
CPH
1 stop17h 35m
United Airlines
Mon 24/812:30 p.m.
CPH
-
SEA
2 stops39h 38m
United Airlines
Deal found 21/4C$ 643
Sun 3/56:50 p.m.
SEA
-
CPH
1 stop12h 35m
Lufthansa
Sun 10/56:05 a.m.
CPH
-
SEA
1 stop19h 54m
Lufthansa
Deal found 21/4C$ 647
Mon 27/47:00 a.m.
SEA
-
CPH
2 stops18h 50m
United Airlines
Tue 5/512:45 p.m.
CPH
-
SEA
2 stops36h 03m
United Airlines
Deal found 20/4C$ 648
Fri 1/56:50 p.m.
SEA
-
CPH
1 stop19h 40m
Lufthansa
Mon 11/56:40 a.m.
CPH
-
SEA
1 stop14h 40m
Lufthansa
Deal found 21/4C$ 659
Sat 7/118:10 a.m.
SEA
-
CPH
1 stop17h 05m
United Airlines
Sun 15/1111:45 a.m.
CPH
-
SEA
1 stop19h 31m
United Airlines
Deal found 20/4C$ 661
Sun 26/411:59 p.m.
SEA
-
CPH
2 stops25h 51m
United Airlines
Thu 7/512:45 p.m.
CPH
-
SEA
1 stop17h 23m
United Airlines
Deal found 21/4C$ 662
Mon 27/47:00 a.m.
SEA
-
CPH
2 stops18h 50m
United Airlines
Sun 3/512:45 p.m.
CPH
-
SEA
2 stops20h 14m
United Airlines
Deal found 21/4C$ 669
Tue 28/47:00 p.m.
SEA
-
CPH
1 stop17h 45m
Icelandair
Wed 6/54:55 p.m.
CPH
-
SEA
1 stop12h 45m
Icelandair
Deal found 21/4C$ 676
Fri 24/46:50 p.m.
SEA
-
CPH
1 stop19h 40m
United Airlines
Sun 3/512:45 p.m.
CPH
-
SEA
1 stop17h 23m
United Airlines
Deal found 21/4C$ 683

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 22 April 2026.

Round-trip from

C$ 643

One-way from

C$ 272

Popular in

December

Cheapest in

February

Average price

C$ 718

Good round-trip deal

C$ 890 or less
United Airlines
  • United Airlines
  • 16/8-24/8
  • 3 total stops
  • 57h 13m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 6/5
  • 1 total stop
  • 12h 15m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 26 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 April 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 22 April 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
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 5/5

2:10 p.m.-1:55 p.m.

1 stop14h 45m

Kastrup Copenhagen

Sat 9/5

6:40 a.m.-12:20 p.m.

1 stop14h 40m

C$ 747

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Tue 22/9

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

1 stop11h 55m

Kastrup Copenhagen

Thu 5/11

8:15 a.m.-5:00 p.m.

1 stop17h 45m

C$ 815

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 21/9

7:00 p.m.-9:45 p.m.

1 stop17h 45m

Kastrup Copenhagen

Fri 6/11

12:55 p.m.-5:00 p.m.

1 stop13h 05m

C$ 815

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 26/9

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

1 stop12h 15m

Kastrup Copenhagen

Wed 4/11

5:05 p.m.-5:00 p.m.

1 stop32h 55m

C$ 818

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

6:00 a.m.-4:59 p.m.

1 stop19h 59m

C$ 829

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 3/5

10:53 p.m.-10:50 a.m.

2 stops26h 57m

Kastrup Copenhagen

Fri 15/5

12:40 p.m.-4:59 p.m.

1 stop13h 19m

C$ 896

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 16/8

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

1 stop17h 35m

Kastrup Copenhagen

Fri 28/8

12:15 p.m.-7:07 p.m.

3 stops39h 52m

C$ 915

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 25/9

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

2 stops26h 00m

Kastrup Copenhagen

Wed 4/11

11:45 a.m.-10:16 p.m.

1 stop19h 31m

C$ 930

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 25/9

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

2 stops26h 00m

Kastrup Copenhagen

Sun 1/11

11:45 a.m.-10:16 p.m.

1 stop19h 31m

C$ 930
Cheapest one-way

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 6/5

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

1 stop20h 45m

C$ 287

Flights are sorted by cheapest round-trip flights first.

Deals found on 21/4

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

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 17 April 2026.

The best time to book flights from Seattle to Copenhagen is 26 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$ 610). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,054). 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 22 April 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
1,751 reviews
Check prices

Overall

7.3

Crew

8.0

Food

6.7

Entertainment

6.7

Boarding

7.6

Comfort

7.3

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
1,751 reviews
Scandinavian Airlines
7.3
Good
1,751 reviews
Check prices

Overall

7.3

Crew

8.0

Food

6.7

Entertainment

6.7

Boarding

7.6

Comfort

7.3

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
639 reviews
Scandinavian Airlines
7.3
Good
1,751 reviews
Check prices

Overall

7.3

Crew

8.0

Food

6.7

Entertainment

6.7

Boarding

7.6

Comfort

7.3

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 56 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$ 815, 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$ 624. Another option worth looking into is Scandinavian Airlines, starting at C$ 631 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$ 1,038, our data shows the cheapest flight currently is C$ 743. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 830 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$ 610). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,054). 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 22 April 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapestC$ 624AverageC$ 693FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Scandinavian AirlinesCheapestC$ 631AverageC$ 783FlexibilityNo 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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