SEA - CPH

C$ 506 Find Cheap Flights from Seattle to Copenhagen

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Copenhagen departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Copenhagen

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Copenhagen, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Copenhagen, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Seattle to Copenhagen (SEA-CPH)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Copenhagen that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Copenhagen

Mon, 10 Nov - Fri, 14 Nov
Icelandair Logo
2:35 p.m. - 11:45 a.m.SEA-CPH
12h 10m1 stop
Icelandair Logo
1:05 p.m. - 5:00 p.m.CPH-SEA
12h 55m1 stop
C$ 622Icelandair
Find Deal
Mon, 30 Mar - Tue, 28 Apr
Icelandair Logo
3:45 p.m. - 4:15 p.m.SEA-CPH
15h 30m1 stop
Icelandair Logo
5:15 p.m. - 8:45 p.m.CPH-SEA
12h 30m1 stop
C$ 623Icelandair
Find Deal
Mon, 30 Mar - Fri, 1 May
Icelandair Logo
7:00 p.m. - 4:15 p.m.SEA-CPH
12h 15m1 stop
Icelandair Logo
2:00 p.m. - 5:50 p.m.CPH-SEA
12h 50m1 stop
C$ 633Icelandair
Find Deal
Sun, 7 Dec - Tue, 13 Jan
Scandinavian Airlines Logo
7:35 a.m. - 7:00 a.m.SEA-CPH
14h 25m1 stop
Scandinavian Airlines Logo
12:50 p.m. - 10:25 p.m.CPH-SEA
42h 35m2 stops
C$ 660Scandinavian Airlines
Find Deal
Wed, 22 Apr - Mon, 27 Apr
Scandinavian Airlines Logo
12:00 p.m. - 3:10 p.m.SEA-CPH
18h 10m1 stop
Scandinavian Airlines Logo
9:25 p.m. - 10:16 p.m.CPH-SEA
33h 51m2 stops
C$ 687Scandinavian Airlines
Find Deal
Wed, 18 Mar - Wed, 25 Mar
British Airways Logo
7:50 p.m. - 7:00 p.m.SEA-CPH
15h 10m1 stop
British Airways Logo
12:15 p.m. - 12:49 a.m.CPH-SEA
20h 34m2 stops
C$ 722British Airways
Find Deal
Wed, 18 Mar - Wed, 25 Mar
British Airways Logo
7:50 p.m. - 7:00 p.m.SEA-CPH
15h 10m1 stop
British Airways Logo
12:15 p.m. - 12:49 a.m.CPH-SEA
20h 34m2 stops
C$ 724British Airways
Find Deal
Wed, 18 Mar - Wed, 25 Mar
Finnair Logo
10:01 a.m. - 12:15 p.m.SEA-CPH
18h 14m2 stops
Finnair Logo
8:40 a.m. - 9:10 p.m.CPH-SEA
20h 30m2 stops
C$ 729Finnair
Find Deal
Tue, 31 Mar - Wed, 29 Apr
Delta Logo
9:55 p.m. - 6:30 a.m.SEA-CPH
23h 35m1 stop
Delta Logo
6:00 a.m. - 4:18 p.m.CPH-SEA
19h 18m2 stops
C$ 741Delta
Find Deal
Mon, 9 Mar - Sun, 15 Mar
Delta Logo
7:20 a.m. - 1:10 p.m.SEA-CPH
21h 50m2 stops
Delta Logo
2:15 p.m. - 12:35 p.m.CPH-SEA
30h 20m1 stop
C$ 752Delta
Find Deal

Everything you should know

Our travellers' advice
AI-generated summary based on content written by travel experts
Use SEA Spot Saver for faster security at Seattle.
Take the regional train to CPH in 13 minutes.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Icelandair
Cheapest • from C$ 622 (round-trip)
Scandinavian Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 13% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
C$ 622
Overall average: C$ 816
Icelandair
Mon 10/11Fri 14/11
SEA - CPH • 1 stop
Cheapest one-way flights
C$ 506
Typical prices: C$ 741-C$ 1,639
Multiple Airlines
Thu 11/12
SEA - CPH • 2 stops
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you love your trip to Copenhagen!
Booking Insights

KAYAK's insights & trends for Seattle to Copenhagen flights

Get data-powered insights and trends into flights from Seattle to Copenhagen to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Copenhagen?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Copenhagen, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Copenhagen is February, where tickets cost C$ 760 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is C$ 1,069 and C$ 988 respectively.

Can I save money by flying with a layover from Seattle to Copenhagen?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 608 on average.

How far in advance should I book a flight from Seattle to Copenhagen?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Copenhagen, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Copenhagen, you should book around 4 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Copenhagen

 
Snippets provided in this section are AI-generated based on a summarisation of KAYAK-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Airports
SEA

Use the SEA Spot Saver for free expedited security screening from 4 a.m. to 10 p.m. at Checkpoints 2, 3, and 5.

Read more about SEAby Harriet Baskas
CPH

Take the regional train from Copenhagen Central Station to CPH in 13 minutes, offering comfortable seating and air conditioning.

Read more about CPHby Chris Dong
Our travel experts
Chris Dong

Chris Dong

Expert on CPH

Chris Dong

Chris Dong

Chris is a consumer travel reporter covering aviation, trending travel news, hotels, and loyalty programs—all for leading global publications like Travel + Leisure, The Washington Post, AFAR, and more. In addition to writing, Chris is a video host for Travel + Leisure, giving consumers an inside look at the latest in air travel.

Read more
Harriet Baskas

Harriet Baskas

Expert on SEA

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more

Good to know

Low seasonJanuary
Cheapest flightC$ 506
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (22% more expensive on average)
Flight from Seattle to Copenhagen

When to book flights from Seattle to Copenhagen

Are your dates flexible? Find out the best times to travel from Seattle to Copenhagen based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Copenhagen

  • Which airlines have hubs at Seattle-Tacoma International Airport?

    Seattle-Tacoma International Airport serves as a hub for both Alaska and Delta Airlines. Alaska Airlines departs via Concourse C, while Delta Airlines operates through Concourse A. Flying aboard these airlines guarantees accelerated services during check-in, excellent amenities, and a wide range of flights to Copenhagen.

  • What is the carry-on limit on airlines flying between Seattle and Copenhagen?

    Various airlines have different hand luggage weight limits, so checking with your preferred airline before traveling is important. For instance, KLM passengers are allowed one carry-on luggage with a maximum size of 23 x 14 x 10 in and a weight of up to 26 lbs. On the other hand, the hand luggage dimensions on American Airlines should not exceed 18 x 14 x 8 in.

  • Are pets allowed on flights between Seattle and Copenhagen?

    You won’t have challenges tagging with your four-legged friends from Seattle (SEA) to Copenhagen (CPH), as most airlines allow cats and dogs into the cabin. Still, checking the updated pet policy with your carrier might be a great idea. You may be asked to present recent health records and medical documentation.

  • Which airlines offer seat upgrades between Seattle and Copenhagen?

    Most airlines flying from Seattle to Copenhagen offer seat upgrades, including British Airways, KLM, Delta, and Air France. Usually, this option is available during seat reservation, check-in, and as you enter the boarding gate. Nevertheless, you can check with the airline in advance on the availability of this service.

  • What is the cheapest flight from Seattle to Copenhagen?

    In the last 3 days, the lowest price for a flight from Seattle to Copenhagen was C$ 506 for a one-way ticket and C$ 622 for a round-trip.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Copenhagen?

    All the following airlines offer inflight Wi-Fi service on the Seattle to Copenhagen flight route: Air France, Lufthansa, Virgin Atlantic, United Airlines, American Airlines, Delta, and KLM.

  • Which aircraft models fly most regularly from Seattle to Copenhagen?

    The Airbus A350-900 is the aircraft model that flies most regularly on the Seattle to Copenhagen flight route.

  • Which airline alliances offer flights from Seattle to Copenhagen?

    SkyTeam is the only airline alliance operating flights between Seattle and Copenhagen.

  • Which is the best airline for flights from Seattle to Copenhagen, Scandinavian Airlines or Icelandair?

    The two airlines most popular with KAYAK users for flights from Seattle to Copenhagen are Scandinavian Airlines and Icelandair. With an average price for the route of C$ 789 and an overall rating of 7.4, Scandinavian Airlines is the most popular choice. Icelandair is also a great choice for the route, with an average price of C$ 772 and an overall rating of 7.1.

  • How does KAYAK find such low prices on flights from Seattle to Copenhagen?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Copenhagen.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Copenhagen?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Copenhagen from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Copenhagen?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Copenhagen with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Copenhagen?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Copenhagen from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Seattle to Copenhagen

  • Looking for a cheap flight? 25% of our users found flights on this route for C$ 472 or less round-trip.
  • When traveling with your family from Seattle-Tacoma International Airport (SEA) to Copenhagen Airport, Kastrup (CPH), consider flying aboard British Airways, KLM, Delta, or Air France. These carriers are the parents’ favorites as they offer spacious seats with extra legroom, making it easy to turn and stretch. Also, they feature kid-friendly entertainment and children’s menus for the young ones to enjoy.
  • Plan and fly business- or first-class- for a comfortable and luxurious voyage from Seattle (SEA) to Copenhagen Airport, Kastrup (CPH). These cabins guarantee a wide range of entertainment options in addition to diverse foods and drinks. Also, the crew will provide you with bedding and pillows for a nap on the lie-flat seats.
  • If you are departing from Seattle-Tacoma International Airport (SEA), you will transit via other cities before landing at Copenhagen Airport, Kastrup (CPH). Popular layover cities along this route include Frankfurt (FRA), Helsinki (HEL), Paris (CDG), Minneapolis (MSP), Amsterdam (AMS), and Zurich (ZRH).
  • Upon landing at Copenhagen Airport, Kastrup (CPH) from Seattle (SEA), you can easily visit many other towns and cities in the neighborhood. If you want to explore destinations about an hour’s drive from CPH, consider Hornbaek, Koiland, Kärnan, or Helsingborg. Taxis, buses, car rentals, and town cars provide reliable transfers.
  • All carriers operating between Seattle-Tacoma International Airport (SEA) and Copenhagen Airport, Kastrup (CPH), offer accessible services to passengers with disabilities and travelers with limited mobility. At SEA you will find friendly staff ready to provide cab-to-craft services. Also, upon landing in Copenhagen (CPH), well-trained staff are on standby to help you deplane.

Reviews of the top airlines flying from Seattle to Copenhagen

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Copenhagen. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Copenhagen? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1545 reviews
8.0Crew
7.3Comfort
6.6Entertainment
7.6Boarding
6.6Food
Airline reviews

first of all, the grand person that I tried to upgrade to Business told me there were no seats available. I don't think she really knew how to use the system at all. They were lying to me then I went and sat at my assigned seat and I asked them again if they had seats in business class one of the hostesses proceeded to tell me now the flight is full. The flight was pretty full, but after we took off, there were at least 10 seats in business that they were not occupied so they lied to me basically and I'm really upset about that.

2.0 MediocreAnonymous, Oct 2025ATH - CPH
Read more Scandinavian Airlines reviews

first of all, the grand person that I tried to upgrade to Business told me there were no seats available. I don't think she really knew how to use the system at all. They were lying to me then I went and sat at my assigned seat and I asked them again if they had seats in business class one of the hostesses proceeded to tell me now the flight is full. The flight was pretty full, but after we took off, there were at least 10 seats in business that they were not occupied so they lied to me basically and I'm really upset about that.

The flight was cancelled without explanation, and the replacement flight was late

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

1) SAS sent me emails that i could check in but that was just a waste of time because traveling to the us i actually had to check-in at the airport. 2) SAS evidently does not care about vegetarians as it does not offer regular veggie alternatives in the transcontinental flights.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

SAS has too many other airliners. They don't need to exist.

Only one choice for meal seats had no leg room

I didn't book special seats but the ones I got were great. The food wasn't good but on par with other airlines

Will not recommend SAS for business travel. Food was so-so. Service was very good. First leg was very good. Second leg from Copenhagen to Barcelona was terrible. We paid a LOT for business class and to have seats worse than most coach seats with no entertainment and no charging available for 1/3rd of the whole trip was not acceptable. Very disappointing. I thought they were coming back in the U.S. with style, NOT YET.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

Everything you need to know for your flight from Seattle to Copenhagen

Information on your arrival and departure airports

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