SEA - CPH

C$ 494 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 10/5. 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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Everything you should know

Cheapest round-trip
C$ 608
Overall average: C$ 721
Icelandair
Mon 9/2Fri 13/2
SEA - CPH • 1 stop
Cheapest direct flights
C$ 968
Scandinavian Airlines
Sun 5/7Tue 21/7
SEA - CPH • Direct
Our travellers' advice
AI-powered summary based on content written by travel experts. AI can make mistakes.
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$ 608 (round-trip)
Scandinavian Airlines
Best reviews • 7.3 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 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
October
Cheapest • 16% price drop
August
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Expert advice
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, 9 Feb - Fri, 13 Feb
Icelandair Logo
2:35 p.m. - 11:45 a.m.
SEA
-
CPH
12h 10m
1 stop
Icelandair Logo
12:55 p.m. - 5:00 p.m.
CPH
-
SEA
13h 05m
1 stop
C$ 608Icelandair
Sun, 12 Apr - Fri, 17 Apr
Delta Logo
10:58 p.m. - 6:45 a.m.
SEA
-
CPH
22h 47m
1 stop
Delta Logo
9:00 a.m. - 7:59 p.m.
CPH
-
SEA
19h 59m
1 stop
C$ 614Delta
Mon, 9 Feb - Fri, 13 Feb
Icelandair Logo
2:35 p.m. - 11:45 a.m.
SEA
-
CPH
12h 10m
1 stop
Icelandair Logo
12:55 p.m. - 5:00 p.m.
CPH
-
SEA
13h 05m
1 stop
C$ 616Icelandair
Mon, 9 Feb - Fri, 13 Feb
Icelandair Logo
2:35 p.m. - 11:45 a.m.
SEA
-
CPH
12h 10m
1 stop
Icelandair Logo
12:55 p.m. - 5:00 p.m.
CPH
-
SEA
13h 05m
1 stop
C$ 622Icelandair
Wed, 11 Mar - Sun, 12 Apr
Icelandair Logo
3:35 p.m. - 7:50 p.m.
SEA
-
CPH
20h 15m
1 stop
Icelandair Logo
10:35 p.m. - 8:40 p.m.
CPH
-
SEA
31h 05m
1 stop
C$ 643Icelandair
Tue, 14 Apr - Mon, 20 Apr
Delta Logo
10:40 p.m. - 6:45 a.m.
SEA
-
CPH
23h 05m
1 stop
Delta Logo
6:00 a.m. - 5:16 p.m.
CPH
-
SEA
20h 16m
2 stops
C$ 654Delta
Mon, 30 Mar - Wed, 8 Apr
Delta Logo
7:20 a.m. - 6:45 a.m.
SEA
-
CPH
14h 25m
1 stop
Delta Logo
6:00 a.m. - 6:26 p.m.
CPH
-
SEA
21h 26m
2 stops
C$ 656Delta
Mon, 13 Apr - Mon, 20 Apr
Delta Logo
7:15 a.m. - 11:05 a.m.
SEA
-
CPH
18h 50m
2 stops
Delta Logo
9:00 a.m. - 10:31 p.m.
CPH
-
SEA
22h 31m
1 stop
C$ 657Delta
Wed, 25 Feb - Wed, 4 Mar
Delta Logo
2:15 p.m. - 5:00 p.m.
SEA
-
CPH
17h 45m
1 stop
Delta Logo
6:45 a.m. - 4:48 p.m.
CPH
-
SEA
19h 03m
2 stops
C$ 673Delta
Mon, 16 Feb - Tue, 3 Mar
Delta Logo
2:15 p.m. - 5:00 p.m.
SEA
-
CPH
17h 45m
1 stop
Delta Logo
6:45 a.m. - 8:46 p.m.
CPH
-
SEA
23h 01m
2 stops
C$ 676Delta
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 October, where tickets cost C$ 701 (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$ 1,034 and C$ 1,034 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$ 688 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 6 weeks before departure.

Expert advice

Expert advice for your flight from Seattle to Copenhagen

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Chris Dong

Chris Dong

Expert on CPH

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.

Harriet Baskas

Harriet Baskas

Expert on SEA

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.

Good to know

Low seasonJanuary
Cheapest flightC$ 494
Best time to beat the crowds (13% less 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$ 494 for a one-way ticket and C$ 608 for a round-trip.

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

    Lufthansa, United Airlines, Air France, Virgin Atlantic, and American 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.

  • 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$ 767 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$ 749 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$ 715 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.
7.3
Scandinavian AirlinesOverall score based on 1672 reviews
6.7Food
6.6Entertainment
8.0Crew
7.3Comfort
7.6Boarding
Airline reviews

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

10.0 ExcellentAnonymous, Jan 2026
SFO - CPH
Read more Scandinavian Airlines reviews

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

in Austria they made me check in my carry on luggage, and it never arrived in JFK... I had medication there on ice that is useless now, I filed a report and they still cant licate my luggage? what kind of joke is this?

The crew was friendly, the flight was pleasant. Thank you for your service!

Our originating flight into Copenhagen was an hour delayed, causing us to miss our main flight from Copenhagen to the US. There had been snow and we needed to be de-iced, but they seemed very slow getting the flight ready, with no explanation. The delay caused us to be put in with thousands stuck at the airport with an all day wait to get rebooked on a flight 2 days out.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

One of our bags was never put on the flight in Copenhagen. Now that we're home in the USA, my wife is still without most of her clothes and personal items as she returns to work this week. Hoping for a quick resolution, but there seems to be little chance of speaking with an actual person in the process.

really nothing ...uncomfortable seating, cramped ....no better than a US short hopper flight.. never again

Amazing! Everyone was so nice and the food was so good!!

Cut out the nickel and dime pricing for "seat selection" and baggage, To do this on an international flight is just mind boggling. Seriously, why treat customers this way??? Nobody wants these hidden extra fees and everybody hates them. Also plane was too warm and no air vent, and water dripped from the ceiling at one point,

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

Again, we paid $ 328.00 for specific seats are were assigned those seats.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

Iceland air transfer was bad. They lost my luggage and I just received it 11/1

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

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

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

Information on your arrival and departure airports