Cheap Flights from Seattle (SEA) to Copenhagen (RKE)

Popular airlines from Seattle-Tacoma International Airport (SEA) to Copenhagen (RKE-Roskilde)

Flights from Seattle (SEA) to Copenhagen (RKE)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Roskilde
Distance
4844 mi

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 . 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 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.

 

Frequently asked questions

How much does a flight from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde) cost?
Grab a cheap one-way flight or cheap return flight from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde)?
The cheapest month to fly from SEA to RKE is , when demand is low. Off-peak months are generally when you'll find lower airfares between these airports.
What is the cheapest airline that flies from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde)?
To find the cheapest airline flying from SEA to RKE, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. 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 Copenhagen (RKE-Roskilde)?
You'll need to hop on a flight with a layover when traveling from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde). There are no daily direct flights on this route. However, just filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from SEA to RKE?
Typically you'll find the widest variety of flight choices on a Friday. Tuesdays tend to be the quietest.* However, this can vary depending on the airline, season and other factors.*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 Copenhagen (RKE-Roskilde)?
To avoid possible delays on the Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde) route, aim to travel before 3 PM. Departures after this time have a 22% higher chance of cancellation.**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 Copenhagen (RKE-Roskilde) last-minute?
Booking your flight from SEA to RKE just before your journey is typically more expensive. However, if you're flexible with your travel times and dates, you could land a cheap last-minute fare.
Can I cancel or change the date of my flight from Seattle - Tacoma Intl. Airport (SEA) to Copenhagen (RKE-Roskilde)?
You can usually reschedule or cancel your SEA to RKE flight. However, for bookings made more than 24 hours ago, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.