SEA - CPH

C$ 298 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 11/8. 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$ 853
Typical prices: C$ 1,075-C$ 757
United Airlines
Wed 2/9Sat 12/9
SEA - CPH • 2 stops
Cheapest direct flights
C$ 1,033
Scandinavian Airlines
Sun 12/7Tue 21/7
SEA - CPH • Direct
Direct flights
Tue, Fri, Sat, Sun
You can fly direct with Scandinavian Airlines. Average duration is 9h 15m
Direct flights
Direct flights
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Direct flights
Direct flights
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Top airlines
Cheapest • from C$ 852 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
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Airline reviews
Airline reviews
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Top layover airports
Cheapest • Avg C$ 722 (round-trip)
Shortest trip • 13h 05m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travellers who book at least 3 weeks in advance save around 14% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 27% price drop
Most popular
Good to know
Good to know
+1
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Good to know
Good to know
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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

Wed, 2 Sep - Sat, 12 Sep
United Airlines Logo
11:00 p.m. - 10:50 a.m.
SEA
-
CPH
26h 50m
2 stops
United Airlines Logo
8:40 a.m. - 4:59 p.m.
CPH
-
SEA
17h 19m
1 stop
C$ 853United Airlines
Sun, 30 Aug - Tue, 8 Sep
Delta Logo
9:45 p.m. - 6:45 a.m.
SEA
-
CPH
24h 00m
2 stops
Delta Logo
6:00 a.m. - 11:47 a.m.
CPH
-
SEA
14h 47m
1 stop
C$ 854Delta
Fri, 7 Aug - Sun, 16 Aug
Delta Logo
6:05 a.m. - 11:45 a.m.
SEA
-
CPH
20h 40m
1 stop
Delta Logo
6:05 a.m. - 11:15 a.m.
CPH
-
SEA
14h 10m
1 stop
C$ 855Delta
Fri, 7 Aug - Sun, 16 Aug
Delta Logo
6:05 a.m. - 11:45 a.m.
SEA
-
CPH
20h 40m
1 stop
Delta Logo
6:05 a.m. - 11:15 a.m.
CPH
-
SEA
14h 10m
1 stop
C$ 857Delta
Thu, 27 Aug - Tue, 8 Sep
Delta Logo
11:59 p.m. - 11:45 a.m.
SEA
-
CPH
26h 46m
1 stop
Delta Logo
6:00 a.m. - 11:47 a.m.
CPH
-
SEA
14h 47m
1 stop
C$ 858Delta
Fri, 28 Aug - Mon, 7 Sep
Delta Logo
1:30 p.m. - 11:25 a.m.
SEA
-
CPH
12h 55m
1 stop
Delta Logo
2:45 p.m. - 11:47 a.m.
CPH
-
SEA
30h 02m
1 stop
C$ 859Delta
Mon, 31 Aug - Sun, 13 Sep
Delta Logo
9:45 p.m. - 9:35 p.m.
SEA
-
CPH
14h 50m
1 stop
Delta Logo
12:20 p.m. - 5:43 p.m.
CPH
-
SEA
14h 23m
1 stop
C$ 861Delta
Sat, 25 Jul - Tue, 4 Aug
Delta Logo
10:40 p.m. - 6:45 a.m.
SEA
-
CPH
23h 05m
1 stop
Delta Logo
9:00 a.m. - 11:20 p.m.
CPH
-
SEA
23h 20m
1 stop
C$ 862Delta
Mon, 3 Aug - Mon, 10 Aug
Delta Logo
1:50 p.m. - 6:15 p.m.
SEA
-
CPH
19h 25m
1 stop
Delta Logo
9:00 a.m. - 8:20 p.m.
CPH
-
SEA
20h 20m
1 stop
C$ 864Delta
Wed, 2 Sep - Mon, 14 Sep
United Airlines Logo
11:00 p.m. - 10:50 a.m.
SEA
-
CPH
26h 50m
2 stops
United Airlines Logo
6:40 a.m. - 2:22 p.m.
CPH
-
SEA
16h 42m
2 stops
C$ 865United Airlines
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?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Seattle to Copenhagen departing in September.

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$ 626 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is C$ 1,137 and C$ 1,088 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$ 882 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 3 weeks before departure, which saves you about 14% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 4 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$ 298
Best time to beat the crowds (13% less expensive on average)
Most popular time to fly (5% 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 5 days, the lowest price for a flight from Seattle to Copenhagen was C$ 298 for a one-way ticket and C$ 852 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, Delta, United Airlines, Virgin Atlantic, American Airlines, Air Canada, and Air Europa.

  • 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 Tuesday, 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$ 791 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$ 711 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$ 900 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

Tuesday

Scandinavian Airlines

Scandinavian Airlines

Friday

Scandinavian Airlines

Scandinavian Airlines

Saturday

Scandinavian Airlines

Scandinavian Airlines

Sunday

Scandinavian Airlines

Scandinavian Airlines

See more nonstop flights

Direct returns

Kastrup Copenhagen to Seattle/Tacoma Intl

Tuesday

Scandinavian Airlines

Scandinavian Airlines

Friday

Scandinavian Airlines

Scandinavian Airlines

Saturday

Scandinavian Airlines

Scandinavian Airlines

Sunday

Scandinavian Airlines

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.
7.4
Scandinavian AirlinesOverall score based on 1828 reviews
7.3Comfort
6.7Food
6.7Entertainment
7.7Boarding
8.0Crew
Airline reviews

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

8.0 ExcellentAndrew, Jun 2026
JFK - CPH
Read more Scandinavian Airlines reviews

Upon departing and landing, the man seating in front of me had his seat leaning back. Taking off nobody told him anything. Landing someone from the crew said something but the passenger ignored him and nobody followed up. Felt a bit unsecured. If this that is some of the basics are missed, what else was overlooked?

On time, reasonably comfortable for economy, decent food. All in all a very good experience.

Every flight got canceled or delayed. Customer service was awful.

They lost my luggage and can’t find it. My trip is ruined. Online tracking of lost luggage doesn’t work

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

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..

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

We paid for saga class, which is the business class for international. My seat was broken and did not recline and my monitor for in-flight entertainment was broken.

I liked the crew but not the uncomfortable seats and lack of movie and tv selection.

They cancelled our connecting flight resulting in another layover reaching our final destination 8 hours later than scheduled.

Awful. The Iceland airport was a complete mess. Boarding was a chaotic, the seats were awful, there was a group of rowdy 20 something men in our row hooting and hollering, ordering alcoholic drink after drink. Yelling and laughing at the top of their lungs and the crew just went along with it. Passengers complained to the men, asking if they could keep it down (it was a night time flight so people wanted to sleep). They never listened crew continued to laugh with them, flirt with them and serve them more drinks. No free food or snacks, seats were horribly uncomfortable. Worst flight I've had in a long time

Repurchased food and it was moldy and expensive. But I figured it was bad luck so I purchased a cup-o-noodles, halfway through them we hit turbulence and the flight attendant was passing with the garbage, it would have been two seconds to grab it, but he was snarky grabbed someone else’s plastic cups and went to buckle up… I used the puke bags to secure the soup before it became an accessory. When he finally came around he gave me a face like a petulant child as I handed him the soup neatly wrapped in the paper then plastic bag. I watched a movie in silence as the rental or headphones was ridiculous at 4€ for those .10€ cheap plastic toys. No English subtitles on an American movie… crazy. I disliked the whinny little tourist trap and now I hope that it sinks into the ocean or erupts in a catastrophic eruption for their beloved “I live on an active volcano” pride.

The Check-in process at CDG was confusing and the crew was not helpful. But the flight was on-time and that is most important to me.

At least one soda free, felt like I was nickeled to death.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

The Icelandair crew was so kind!!! Thank you for making my first trip to Paris a great one!

I am not going to fillo this out for each leg of my trip. My first review holds for the experience

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

Information on your arrival and departure airports