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Cheap flights from Seattle to Copenhagen from C$ 430

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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — CPH
8 Aug — 15 Aug1
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 9 July 2026.

Fri 21/811:25 p.m.
SEA
-
CPH
1 stop13h 20m
Icelandair
Sun 30/82:00 p.m.
CPH
-
SEA
1 stop12h 55m
Icelandair
Deal found 8/7C$ 763
Sat 22/83:40 p.m.
SEA
-
CPH
1 stop29h 40m
Icelandair
Tue 1/910:35 p.m.
CPH
-
SEA
1 stop31h 05m
Icelandair
Deal found 4/7C$ 767
Thu 13/82:10 p.m.
SEA
-
CPH
2 stops24h 20m
United Airlines
Fri 21/812:15 p.m.
CPH
-
SEA
3 stops32h 11m
United Airlines
Deal found 6/7C$ 774
Sun 13/126:57 a.m.
SEA
-
CPH
2 stops26h 28m
United Airlines
Mon 21/126:00 a.m.
CPH
-
SEA
2 stops26h 21m
United Airlines
Deal found 9/7C$ 778
Thu 20/82:10 p.m.
SEA
-
CPH
1 stop19h 15m
United Airlines
Wed 26/810:10 a.m.
CPH
-
SEA
2 stops20h 48m
United Airlines
Deal found 8/7C$ 784
Thu 27/83:40 p.m.
SEA
-
CPH
1 stop15h 15m
Icelandair
Sun 6/910:35 p.m.
CPH
-
SEA
1 stop22h 10m
Icelandair
Deal found 6/7C$ 798
Mon 17/88:00 a.m.
SEA
-
CPH
1 stop17h 50m
United Airlines
Fri 28/812:15 p.m.
CPH
-
SEA
2 stops36h 55m
United Airlines
Deal found 8/7C$ 807
Tue 28/711:25 p.m.
SEA
-
CPH
1 stop21h 55m
Icelandair
Fri 7/87:20 a.m.
CPH
-
SEA
1 stop19h 35m
Icelandair
Deal found 8/7C$ 811
Fri 31/711:25 p.m.
SEA
-
CPH
1 stop21h 55m
Icelandair
Wed 12/87:20 a.m.
CPH
-
SEA
1 stop13h 25m
Icelandair
Deal found 4/7C$ 814
Fri 4/95:13 p.m.
SEA
-
CPH
2 stops32h 37m
United Airlines
Fri 18/912:45 p.m.
CPH
-
SEA
2 stops36h 29m
United Airlines
Deal found 4/7C$ 819
Tue 8/95:13 p.m.
SEA
-
CPH
2 stops32h 37m
United Airlines
Tue 15/912:45 p.m.
CPH
-
SEA
2 stops35h 07m
United Airlines
Deal found 7/7C$ 821
Sun 16/88:00 a.m.
SEA
-
CPH
1 stop17h 35m
United Airlines
Sat 29/812:45 p.m.
CPH
-
SEA
1 stop17h 22m
United Airlines
Deal found 8/7C$ 832

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 9 July 2026.

Round-trip from

C$ 763

One-way from

C$ 430

Popular in

December

Cheapest in

February

Average price

C$ 1,143

Good round-trip deal

C$ 868 or less
Icelandair
  • Icelandair
  • 21/8-26/8
  • 2 total stops
  • 25h 10m total
  • Seattle to Copenhagen
Search Deals
Icelandair
  • Icelandair
  • 12/9
  • 1 total stop
  • 13h 20m total
  • Seattle to Copenhagen
Search Deals
Highest demand for flights based on searches. 1% potential increase in price (C$ 21 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 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 9 July 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

Fri 28/8

12:15 p.m.-4:10 p.m.

2 stops36h 55m

C$ 807

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 24/8

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

1 stop17h 50m

Kastrup Copenhagen

Sat 5/9

12:45 p.m.-11:32 a.m.

2 stops31h 47m

C$ 814

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Fri 4/9

5:13 p.m.-10:50 a.m.

2 stops32h 37m

Kastrup Copenhagen

Fri 18/9

12:45 p.m.-4:14 p.m.

2 stops36h 29m

C$ 819

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 24/8

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

1 stop17h 50m

Kastrup Copenhagen

Wed 26/8

12:25 p.m.-11:55 a.m.

1 stop32h 30m

C$ 896

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sun 13/9

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

1 stop20h 45m

Kastrup Copenhagen

Sat 26/9

9:00 a.m.-11:20 p.m.

1 stop23h 20m

C$ 912

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Thu 20/8

2:10 p.m.-6:25 p.m.

1 stop19h 15m

Kastrup Copenhagen

Tue 1/9

10:10 a.m.-11:25 a.m.

3 stops34h 15m

C$ 950

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Wed 16/9

7:15 a.m.-8:30 a.m.

2 stops16h 15m

Kastrup Copenhagen

Wed 23/9

9:00 a.m.-11:20 p.m.

1 stop23h 20m

C$ 954
Quickest round-trip

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 3/8

5:45 p.m.-6:15 p.m.

1 stop15h 30m

Kastrup Copenhagen

Mon 10/8

10:10 a.m.-8:03 p.m.

2 stops18h 53m

C$ 1,019

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Sat 1/8

11:25 p.m.-6:20 a.m.

1 stop21h 55m

Kastrup Copenhagen

Wed 12/8

10:35 p.m.-11:45 a.m.

1 stop22h 10m

C$ 1,035

SeattleCopenhagen

SEA - CPH

SEACPH

Seattle/Tacoma Intl

Mon 27/7

2:10 p.m.-11:30 p.m.

2 stops24h 20m

Kastrup Copenhagen

Wed 12/8

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

1 stop13h 19m

C$ 1,116

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/7

Showing 1-10 of 20 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?

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$ 634). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,151). 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 9 July 2026.

When flying from Seattle to Copenhagen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 9 July 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
1,874 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.0

Entertainment

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Scandinavian Airlines
7.4
Good
1,874 reviews
Scandinavian Airlines
7.4
Good
1,874 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.0

Entertainment

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Icelandair
7.0
Good
702 reviews
Scandinavian Airlines
7.4
Good
1,874 reviews
Check prices

Food

6.7

Overall

7.4

Boarding

7.7

Comfort

7.3

Crew

8.0

Entertainment

6.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

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.

  • What airports do I use to fly from Seattle to Copenhagen?

    To fly from Seattle to Copenhagen, you need to book a flight from Seattle/Tacoma Intl (SEA) to Kastrup Copenhagen (CPH). Nonstop flights to Kastrup Copenhagen from Seattle/Tacoma Intl take 9h 15m on average. When it comes time to book airfare, you have a few options: there is 1 outbound flight from Seattle/Tacoma Intl to Kastrup Copenhagen offered by 2 different airlines.

  • How popular is this Seattle to Copenhagen flight route?

    The Seattle/Tacoma Intl to Kastrup Copenhagen flight path was viewed by 6 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$ 807, United Airlines can have you in Copenhagen from Seattle in 17h 50m. 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 Scandinavian Airlines is currently your cheapest option to Copenhagen, with prices starting at C$ 617. Another option worth looking into is Icelandair, starting at C$ 634 round trip. These flights start at 29% 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 (74%), Scandinavian Airlines (74%), Delta (74%).

  • What are the cheapest flights from Seattle to Copenhagen?

    While on average a flight from Seattle to Copenhagen is generally C$ 1,125, our data shows the cheapest flight currently is C$ 839. When looking at the most popular route, (Seattle/Tacoma Intl - Kastrup Copenhagen), you can expect to pay C$ 982 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$ 634). Flying from Seattle to Copenhagen in December is currently the most expensive (average of C$ 1,151). 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 9 July 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapestC$ 617AverageC$ 947FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
IcelandairCheapestC$ 634AverageC$ 720FlexibilityNo cancel feeOn-time76%
Search Icelandair 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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