SEA - CPH

C$ 548 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 6/10. 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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Flights 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

Sun, 20 Jul - Mon, 25 Aug
Icelandair Logo
11:30 p.m. - 6:20 a.m.SEA-CPH
21h 50m1 stop
Icelandair Logo
10:35 p.m. - 11:25 a.m.CPH-SEA
21h 50m1 stop
C$ 677Icelandair
Find Deal
Tue, 12 Aug - Fri, 12 Sep
Icelandair Logo
7:00 p.m. - 9:45 p.m.SEA-CPH
17h 45m1 stop
Icelandair Logo
2:00 p.m. - 8:40 p.m.CPH-SEA
15h 40m1 stop
C$ 701Icelandair
Find Deal
Sun, 27 Jul - Tue, 12 Aug
Icelandair Logo
11:30 p.m. - 9:45 p.m.SEA-CPH
13h 15m1 stop
Icelandair Logo
4:45 p.m. - 5:50 p.m.CPH-SEA
34h 05m1 stop
C$ 704Icelandair
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Sun, 6 Jul - Wed, 16 Jul
Scandinavian Airlines Logo
4:00 p.m. - 10:30 a.m.SEA-CPH
9h 30mdirect
Scandinavian Airlines Logo
1:05 p.m. - 1:50 p.m.CPH-SEA
9h 45mdirect
C$ 705Scandinavian Airlines
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Sun, 14 Sep - Mon, 29 Sep
United Airlines Logo
7:15 a.m. - 7:10 a.m.SEA-CPH
14h 55m1 stop
United Airlines Logo
12:25 p.m. - 3:45 p.m.CPH-SEA
36h 20m2 stops
C$ 734United Airlines
Find Deal
Sat, 16 Aug - Mon, 8 Sep
United Airlines Logo
11:48 p.m. - 7:10 a.m.SEA-CPH
22h 22m2 stops
United Airlines Logo
12:25 p.m. - 3:14 p.m.CPH-SEA
35h 49m2 stops
C$ 740United Airlines
Find Deal
Sun, 12 Oct - Thu, 23 Oct
Delta Logo
9:55 p.m. - 6:30 a.m.SEA-CPH
23h 35m1 stop
Delta Logo
6:00 a.m. - 6:30 p.m.CPH-SEA
21h 30m2 stops
C$ 747Delta
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Wed, 2 Jul - Mon, 28 Jul
Scandinavian Airlines Logo
4:00 p.m. - 10:30 a.m.SEA-CPH
9h 30mdirect
Scandinavian Airlines Logo
1:05 p.m. - 1:50 p.m.CPH-SEA
9h 45mdirect
C$ 752Scandinavian Airlines
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Mon, 6 Oct - Wed, 22 Oct
Delta Logo
12:40 a.m. - 10:05 a.m.SEA-CPH
24h 25m1 stop
Delta Logo
12:20 p.m. - 11:32 p.m.CPH-SEA
20h 12m1 stop
C$ 760Delta
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Tue, 7 Oct - Wed, 22 Oct
Finnair Logo
1:30 p.m. - 7:15 p.m.SEA-CPH
20h 45m1 stop
Finnair Logo
8:40 a.m. - 6:54 p.m.CPH-SEA
19h 14m2 stops
C$ 763Finnair
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
Useful Info

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$ 779 (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$ 1,062 and C$ 1,009 respectively.

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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Find deals

Good to know

Low seasonJanuary
High seasonAugust
Cheapest flightC$ 548
Best time to beat the crowds (10% less expensive on average)
Most popular time to fly and prices are also 1% 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$ 401 for a one-way ticket and C$ 495 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, Virgin Atlantic, Delta, Lufthansa, United Airlines, American Airlines, 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.

  • 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.

  • 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$ 739 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?

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
See more nonstop flights

Top airline 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.
7.0
IcelandairOverall score based on 499 reviews
7.1Boarding
7.0Comfort
6.2Food
7.0Entertainment
8.0Crew
Airline reviews

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

4.0 OkaySamuel, Jun 2025BWI - KEF
Read more Icelandair reviews

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset. If there is option to use another company, I suggest to other people use them.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

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

Information on your arrival and departure airports

Seattle (SEA)
Copenhagen (CPH)

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