SEA - CPH

C$ 612 Find Cheap Flights from Seattle to Copenhagen

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Copenhagen departing on 29/10. 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

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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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

Wed, 29 Oct - Thu, 13 Nov
Icelandair Logo
3:35 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$ 612Icelandair
Find Deal
Wed, 29 Oct - Sun, 16 Nov
Icelandair Logo
3:35 p.m. - 8:35 p.m.SEA-CPH
21h 00m1 stop
Icelandair Logo
9:30 p.m. - 5:00 p.m.CPH-SEA
28h 30m1 stop
C$ 613Icelandair
Find Deal
Wed, 12 Nov - Sun, 16 Nov
Icelandair Logo
2:35 p.m. - 12:00 p.m.SEA-CPH
12h 25m1 stop
Icelandair Logo
9:30 p.m. - 5:00 p.m.CPH-SEA
28h 30m1 stop
C$ 615Icelandair
Find Deal
Sat, 6 Sep - Thu, 18 Sep
Delta Logo
6:10 a.m. - 9:55 a.m.SEA-CPH
18h 45m1 stop
Delta Logo
9:00 a.m. - 8:16 p.m.CPH-SEA
20h 16m1 stop
C$ 653Delta
Find Deal
Thu, 23 Oct - Mon, 3 Nov
Delta Logo
6:00 a.m. - 9:55 a.m.SEA-CPH
18h 55m1 stop
Delta Logo
6:00 a.m. - 4:10 p.m.CPH-SEA
19h 10m2 stops
C$ 660Delta
Find Deal
Tue, 9 Sep - Wed, 17 Sep
United Airlines Logo
7:15 a.m. - 7:30 a.m.SEA-CPH
15h 15m1 stop
United Airlines Logo
12:45 p.m. - 6:49 p.m.CPH-SEA
39h 04m2 stops
C$ 671United Airlines
Find Deal
Mon, 8 Sep - Wed, 17 Sep
United Airlines Logo
12:00 p.m. - 10:50 a.m.SEA-CPH
13h 50m1 stop
United Airlines Logo
12:45 p.m. - 6:49 p.m.CPH-SEA
39h 04m2 stops
C$ 680United Airlines
Find Deal
Wed, 3 Sep - Thu, 18 Sep
Scandinavian Airlines Logo
4:00 p.m. - 10:30 a.m.SEA-CPH
9h 30mdirect
Scandinavian Airlines Logo
2:15 p.m. - 12:24 a.m.CPH-SEA
19h 09m1 stop
C$ 701Scandinavian Airlines
Find Deal
Wed, 24 Sep - Fri, 3 Oct
Scandinavian Airlines Logo
4:20 p.m. - 11:00 a.m.SEA-CPH
9h 40mdirect
Scandinavian Airlines Logo
1:05 p.m. - 2:00 p.m.CPH-SEA
9h 55mdirect
C$ 727Scandinavian Airlines
Find Deal
Tue, 19 Aug - Mon, 25 Aug
SWISS Logo
1:45 p.m. - 11:25 p.m.SEA-CPH
24h 40m2 stops
SWISS Logo
8:10 p.m. - 10:20 p.m.CPH-SEA
35h 10m2 stops
C$ 750SWISS
Find Deal
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
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.

How much is a round-trip flight from Seattle to Copenhagen?

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$ 782 (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$ 1,065 and C$ 995 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$ 682 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 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.


Good to know

Low seasonJanuary
Cheapest flightC$ 612
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly and prices are also 2% lower 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$ 600 for a one-way ticket and C$ 446 for a round-trip.

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

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

  • 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.

  • On which days can I fly direct from Seattle to Copenhagen?

    You can catch a direct flight from Seattle to Copenhagen on on Monday, Wednesday, Friday, Saturday, and Sunday.

  • 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$ 775 and an overall rating of 7.3, Scandinavian Airlines is the most popular choice. Icelandair is also a great choice for the route, with an average price of C$ 758 and an overall rating of 7.0.

  • 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$ 682 or less one-way and C$ 741 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.

Prefer to fly direct from Seattle to Copenhagen?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Kastrup Copenhagen.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Kastrup Copenhagen Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Kastrup Copenhagen

Monday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Wednesday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Friday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Saturday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Sunday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

See more nonstop flights

Direct returns

Kastrup Copenhagen to Seattle/Tacoma Intl

Monday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Wednesday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Friday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Saturday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

Sunday

Delta,Scandinavian Airlines

Delta,Scandinavian Airlines

See more nonstop flights

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.
7.3
Scandinavian AirlinesOverall score based on 1449 reviews
6.6Food
8.0Crew
7.6Boarding
6.6Entertainment
7.3Comfort
Airline reviews

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

10.0 ExcellentAnonymous, Jul 2025WAW - CPH
Read more Scandinavian Airlines reviews

It was great, used to fly them a lot back 20 years ago but since did KLM as my flight route changed, but very happy with my experience and will come again!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I love it the scandavians know hospitality travel and are very friendly peopu

Food could have been better. My pasta was microwaved into a solid block. Inedible.

OK experience except for the fact that I had to pay $100 for one checked in bag in Amsterdam, while it was supposed to be free like it was on the flight from LAX to AMS. I want SAS to reimburse me for this!

Great experience. Typically do klm to Amsterdam but may start taking this flight in future - greatxexperience.

The food was wonderful! The blankets and pillows were a nice touch and the staff were very accommodating, making frequent rounds to offer food, drink, etc. We were also told in advance when to expect meals to arrive, which is thoughtful. I liked the early notification about the lack of headphones as well, although unfortunately I'm not sure we received on for the first leg of the trip, which would have been nice to prepare for. The seats are a bit tight, and the bright monitors on the wall were on during an overnight trip, making it difficult to sleep for those close to them. .

You changed our seats without letting us know. We booked two seats on the side of the plane including an aisle, but you ended up putting us in between two other people in the middle of the plane. My husband is 6' 6" and I'm 5' 11", so we need an aisle seat. We were able to move thankfully because the flight wasn't full, but I had to ask the stewardess. You also didn't give us a meal for several hours on the return flight, and it wasn't great (toast with olive/cheese). Finally, you lost our checked bags in Copenhagen so we had to wait an hour after we arrived before we realized they weren't coming. We put in a claim so hopefully we'll still get them.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

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

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