
CA $366 Cheap Flights from Seattle (SEA) to Copenhagen (CPH)
Popular airlines from Seattle-Tacoma International Airport (SEA) to Kastrup Airport (CPH)
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Find the cheapest flights on Expedia from Seattle (SEA) to Copenhagen (CPH). Flight ticket prices change frequently based on availability and demand. We send price‑drop alerts to make air travel simple and flexible. The lowest one-way fare found on Expedia for this route in the past 7 days starts at CA $366 for travel on December 9, 2026.
Cheap Flights from Seattle to Copenhagen (SEA-CPH)
Prices were available within the past 7 days and start at CA $366 for one-way flights and CA $671 for roundtrip, for the period specified. Prices and availability are subject to change.
All deals
One way
Roundtrip
Tue, Nov 17 - Sat, Dec 5 · SEA · CPH · Roundtrip
Thu, Dec 3 - Wed, Dec 9 · SEA · CPH · Roundtrip
Mon, Apr 26 - Thu, May 6 · SEA · CPH · Roundtrip
Thu, Mar 4 - Wed, Mar 17 · SEA · CPH · Roundtrip
Fri, Mar 26 - Sun, Apr 4 · SEA · CPH · Roundtrip
Wed, Dec 30 - Wed, Jan 13 · SEA · CPH · Roundtrip
Mon, Dec 7 - Thu, Dec 24 · SEA · CPH · Roundtrip
Thu, Dec 3 - Wed, Dec 9 · SEA · CPH · Roundtrip
Wed, Mar 17 - Wed, Mar 24 · SEA · CPH · Roundtrip
Sat, Aug 7 - Sat, Aug 21 · SEA · CPH · Roundtrip
Alternative airports near Copenhagen
Prices were available within the past 7 days. Prices and availability are subject to change.
Select flight to Sturup MMX. Average driving time to city centre is 45 minutes.
45 min · Search flights
Select flight to Roskilde RKE. Average driving time to city centre is 32 minutes.
32 min · Search flights
Select flight to Angelholm AGH. Average driving time to city centre is 1 hour 33 minutes.
1 h 33 min · Search flights
Select flight to Kristianstad KID. Average driving time to city centre is 1 hour 29 minutes.
1 h 29 min · Search flights
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Seattle to Copenhagen Flights
The easy way to book your flights from Seattle to Copenhagen
With Expedia, it’s simple to find and book flights to Copenhagen from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 7 airlines that cover this route. There are nonstop flights to Kastrup, too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Copenhagen today, tomorrow, or this week.
Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Kastrup, CPH
Sort your search results by price to find great deals on your flight from Seattle to Copenhagen—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Copenhagen from Seattle currently is just CA $671 rising to CA $823.
Here are more money-saving tips:
- Fly in November when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Copenhagen
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Copenhagen from Seattle
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Copenhagen with Expedia today.
Frequently Asked Questions
How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) cost?
You can find cheap one-way flights from CA $366 and cheap return flights CA $671 SEA to CPH with Expedia. One-way flights typically cost between CA$632 and CA$6452, and return flights often range between CA$1223 and CA$8803. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to CPH ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
The cheapest months to fly from SEA to CPH are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
Only one airline offers direct flights from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH). SAS operates 7 direct flights from Seattle - Tacoma Intl. to Copenhagen every week.
How do I find cheap flights from Seattle, WA (SEA) to Copenhagen (CPH)?
To find a cheap flight from Seattle, WA (SEA) to Copenhagen (CPH), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
The best airline to fly with from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH) will differ from traveler to traveler. If you like to fly early, SAS offers early morning flights. If price is the most important factor, SAS typically offers the lowest fares. Delta offers the most daily flights from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
While there aren't many direct flights, you'll find approximately 87 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH-Kastrup). This gives you plenty of options to choose from. Some common connection points include O'Hare Intl. (ORD), Vancouver Intl. (YVR), and Pearson Intl. (YYZ).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH) typically departs around 12:05 AM local time. This flight is operated by Alaska Airlines. This is a seasonal service, active in June. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
You'll typically find the most flights from Seattle - Tacoma Intl. (SEA) to Copenhagen (CPH) on a Friday, with around 107 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta, United, and Alaska Airlines. Fridays offer notably more flight options compared to other days of the week, making it a great day to consider for your journey.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Kastrup (CPH) are between 12pm and 3pm. Many major carriers, including Lufthansa, Delta and United, offer flights during this window. Many travellers prefer this time as it allows for a morning in Seattle before heading to the airport, and an evening arrival in Copenhagen.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
A nonstop flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) typically takes around 9 hours 18 minutes. This route covers a distance of approximately 7,810 kilometres. If you opt for a flight with one stop, your travel time will be longer, usually around 15 hours 18 minutes. Flights with two or more stops generally take about 18 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and specific routing.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup)?
You can fly business class or first class between SEA and CPH. Airlines that offer business class service on this route include:
* Lufthansa
* Air France
* Turkish Airlines
* Air Canada
* British Airways
* Aer Lingus
* SAS
* Icelandair
* Virgin Atlantic
* Alaska Airlines
* Horizon Air
* Delta
* United
* Singapore Airlines
* Edelweiss Air
* Condor
* Finnair
* American Airlines
First class cabins are available on Alaska Airlines and United.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Copenhagen (CPH) from Seattle, WA (SEA)?
If you're planning to travel to Copenhagen from Seattle - Tacoma Intl. (SEA), you can fly directly into Kastrup (CPH). Some flights may connect through major hubs like O'Hare Intl. (ORD), Vancouver Intl. (YVR), or Washington Dulles Intl. (IAD) before reaching Copenhagen. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Copenhagen (CPH-Kastrup) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Seattle, WA (SEA) to Copenhagen (CPH)?
If you booked your Seattle, WA (SEA) to Copenhagen (CPH) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
| Origin airport | Seattle-Tacoma International Airport |
|---|---|
| Destination airport | Kastrup Airport |
| Distance | 7,808 km away |
| Airlines serving | SAS, Lufthansa, Icelandair, Finnair, British Airways, Brussels Airlines, Turkish Airlines, Air Canada, Swiss International Air Lines, Alaska Airlines, Air France, KLM, Delta, United, Austrian Airlines, American Airlines, Virgin Atlantic, Singapore Airlines, Iberia |
| Popular airline | SAS |
| Roundtrip price | CA $671 |
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