$370 Cheap Flights from Seattle (SEA) to Copenhagen (CPH)

View $370 flight on Wed, Nov 12, 2025Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Copenhagen Airport, Kastrup (CPH)

Cheap Flights from Seattle to Copenhagen (SEA-CPH)

Prices were available within the past 7 days and start at $370 for one-way flights and $444 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
CPH
Copenhagen
$444 Roundtrip, just found
$444
Roundtrip
just found
Select Icelandair flight, departing Wed, Nov 12 from Seattle to Copenhagen, returning Wed, Nov 19, priced at $444 just found
Icelandair
Wed, Nov 12 - Wed, Nov 19
SEA
Seattle
CPH
Copenhagen
$446 Roundtrip, just found
$446
Roundtrip
just found
Select Icelandair flight, departing Wed, Nov 12 from Seattle to Copenhagen, returning Wed, Nov 19, priced at $446 just found
Scandinavian Airlines
Tue, May 19 - Tue, May 26
SEA
Seattle
CPH
Copenhagen
$465 Roundtrip, found 13 hours ago
$465
Roundtrip
found 13 hours ago
Select Scandinavian Airlines flight, departing Tue, May 19 from Seattle to Copenhagen, returning Tue, May 26, priced at $465 found 13 hours ago
Scandinavian Airlines
Tue, Aug 25 - Tue, Sep 1
SEA
Seattle
CPH
Copenhagen
$481 Roundtrip, found 2 days ago
$481
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Tue, Aug 25 from Seattle to Copenhagen, returning Tue, Sep 1, priced at $481 found 2 days ago
British Airways
Tue, Aug 18 - Tue, Aug 25
SEA
Seattle
CPH
Copenhagen
$496 Roundtrip, found 4 days ago
$496
Roundtrip
found 4 days ago
Select British Airways flight, departing Tue, Aug 18 from Seattle to Copenhagen, returning Tue, Aug 25, priced at $496 found 4 days ago
Virgin Atlantic
Sun, Apr 5 - Tue, Apr 14
SEA
Seattle
CPH
Copenhagen
$503 Roundtrip, found 3 hours ago
$503
Roundtrip
found 3 hours ago
Select Virgin Atlantic flight, departing Sun, Apr 5 from Seattle to Copenhagen, returning Tue, Apr 14, priced at $503 found 3 hours ago
Delta
Tue, Apr 7 - Mon, Apr 20
SEA
Seattle
CPH
Copenhagen
$503 Roundtrip, found 3 days ago
$503
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Apr 7 from Seattle to Copenhagen, returning Mon, Apr 20, priced at $503 found 3 days ago
American Airlines
Tue, Dec 9 - Tue, Dec 16
SEA
Seattle
CPH
Copenhagen
$510 Roundtrip, found 10 hours ago
$510
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Dec 9 from Seattle to Copenhagen, returning Tue, Dec 16, priced at $510 found 10 hours ago
Air Canada
Tue, Aug 18 - Tue, Aug 25
SEA
Seattle
CPH
Copenhagen
$528 Roundtrip, found 4 days ago
$528
Roundtrip
found 4 days ago
Select Air Canada flight, departing Tue, Aug 18 from Seattle to Copenhagen, returning Tue, Aug 25, priced at $528 found 4 days ago
Lufthansa
Wed, Nov 26 - Wed, Dec 3
SEA
Seattle
CPH
Copenhagen
$533 Roundtrip, found 2 hours ago
$533
Roundtrip
found 2 hours ago
Select Lufthansa flight, departing Wed, Nov 26 from Seattle to Copenhagen, returning Wed, Dec 3, priced at $533 found 2 hours ago

Find the cheapest month to fly from Seattle (SEA) to Copenhagen (CPH)

February is typically the cheapest month to fly

From $430 - $910 per traveler.

Alternative airports near Copenhagen

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kastrup CPH. Cheapest and Closest option available. Average driving time to city center is 10 minutes. Flights from $638
CPH
Kastrup
CheapestClosest
Average driving time to city center10 min
Flights from $638

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH) cost?
Lock in a cheap one-way flight from $370 or cheap return flight from $444 from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH)?
The cheapest month to fly from SEA to CPH is November, when there's less demand. Off-peak season is generally when better flight deals are available between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH)?
To find the cheapest airline flying from SEA to CPH, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH)?
Nonstop flights from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SEA to CPH?
Friday is generally the busiest day for flights, while Tuesday tends to be the quietest.* Keep in mind that flight schedules can vary based on various factors, including the airline and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH) route, aim to travel before 3 PM. Flights after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH) last-minute?
Holding off until right before your break to book your flight from SEA to CPH often results in higher prices. While you may find some last-minute offers, they aren't always guaranteed. Keep your travel schedule open to boost your chances of getting a bargain.
Is it cheaper to book a SEA to CPH flight and hotel package?
You'll generally save money by booking a SEA to CPH flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one convenient place. After selecting your ideal accommodations and flights, consider adding extras such as car rentals, tours and activities.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Kastrup Airport (CPH)?
If you reserved your SEA to CPH flight within the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare type you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
Seattle - Tacoma Intl.
Destination airport
Kastrup
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, United, Virgin Atlantic
Roundtrip price
$444
Distance
4852 mi
Average flight time
9 hours 30 mins

Book with confidence

Seattle to Copenhagen Flights

The cheapest times to fly from Seattle to Copenhagen

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Seattle to Copenhagen are during the month of November. You can find some of the cheapest flights from Seattle to Copenhagen with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Seattle to Copenhagen

Sunday is one of the best days to book for cheap flights from Seattle to Copenhagen: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Seattle to Copenhagen

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Seattle to Copenhagen in 2025. You can also book with separate airlines for your outbound and return journeys, from $370 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Seattle to Copenhagen flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Seattle to Copenhagen airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Seattle to Copenhagen Flights

Explore a world of travel with Expedia

*Available to One Key members.