$282 Find Cheap Flights from Seattle to Denmark

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 Denmark departing on 3/5. 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

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Cheap Flights from Seattle to Denmark

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Copenhagen
Copenhagen1 stop$454
Aalborg
Aalborg2 stops$496
Aarhus
Aarhus2 stops$552
Copenhagen
Copenhagen1 stop$454
Aalborg
Aalborg2 stops$496
Aarhus
Aarhus2 stops$552

Book Cheap Seattle to Denmark Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Denmark 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 Denmark

Tue, Oct 14 - Wed, Oct 22
Icelandair Logo
3:45 pm - 12:55 pmSEA-CPH
12h 10m1 stop
Icelandair Logo
4:45 pm - 8:40 pmCPH-SEA
12h 55m1 stop
$454Icelandair
Find Deal
Sat, Oct 11 - Mon, Oct 20
Icelandair Logo
7:00 pm - 9:45 pmSEA-CPH
17h 45m1 stop
Icelandair Logo
10:35 pm - 5:50 pmCPH-SEA
28h 15m1 stop
$456Icelandair
Find Deal
Wed, Nov 26 - Wed, Dec 3
Icelandair Logo
2:35 pm - 8:35 pmSEA-CPH
21h 00m1 stop
Icelandair Logo
12:55 pm - 5:00 pmCPH-SEA
13h 05m1 stop
$458Icelandair
Find Deal
Mon, Oct 13 - Fri, Oct 17
Scandinavian Airlines Logo
12:45 pm - 3:10 pmSEA-CPH
17h 25m1 stop
Scandinavian Airlines Logo
1:10 pm - 2:00 pmCPH-SEA
9h 50mnonstop
$462Scandinavian Airlines
Find Deal
Tue, Oct 28 - Tue, Nov 4
Scandinavian Airlines Logo
7:50 am - 7:00 amSEA-CPH
15h 10m1 stop
Scandinavian Airlines Logo
12:50 pm - 10:27 pmCPH-SEA
42h 37m2 stops
$471Scandinavian Airlines
Find Deal
Wed, Oct 15 - Thu, Oct 23
Delta Logo
7:19 am - 6:30 amSEA-CPH
14h 11m1 stop
Delta Logo
9:00 am - 8:16 pmCPH-SEA
20h 16m1 stop
$485Delta
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Wed, Oct 15 - Thu, Oct 23
Delta Logo
7:19 am - 6:30 amSEA-CPH
14h 11m1 stop
Delta Logo
9:00 am - 10:22 pmCPH-SEA
22h 22m1 stop
$494Delta
Find Deal
Wed, Dec 3 - Thu, Dec 11
British Airways Logo
9:00 am - 11:20 amSEA-CPH
17h 20m2 stops
British Airways Logo
10:30 am - 4:55 pmCPH-SEA
15h 25m1 stop
$509British Airways
Find Deal
Wed, Dec 3 - Thu, Dec 11
British Airways Logo
2:19 pm - 5:20 pmSEA-CPH
18h 01m2 stops
British Airways Logo
12:15 pm - 11:01 pmCPH-SEA
19h 46m2 stops
$519British Airways
Find Deal
Wed, Dec 3 - Thu, Dec 11
Lufthansa Logo
3:10 pm - 5:35 pmSEA-CPH
17h 25m1 stop
Lufthansa Logo
6:00 am - 10:28 pmCPH-SEA
25h 28m2 stops
$524Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for Seattle to Denmark flights

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

What is the cheapest Seattle to Denmark flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Denmark from Seattle found in the last 72 hours was to Copenhagen, at $445 round-trip. The most popular route is from Seattle (SEA) to Copenhagen (CPH), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $445.

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

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.

No, with an average price for the route of $601, prices are generally cheapest when you fly direct.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Denmark, 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 Denmark is February, when tickets cost $575 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $769 and $706 respectively.

What’s the cheapest day of the week to fly from Seattle to Denmark?

The average price of all round-trip flights from Seattle to Denmark clicked on KAYAK for each day over the last 12 months.

For Seattle to Denmark, Tuesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Denmark back to Seattle, the best deals are generally found on Saturday, with Sunday being the most expensive.

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

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 Denmark, 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 Denmark, you should book around 4 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 6 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$282
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 6% increase in price.
Flight from Seattle to Copenhagen

FAQs - booking Denmark flights

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

    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 Denmark.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Seattle to Denmark 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 Denmark?

    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 from Seattle to Denmark with an airline and back with another airline.

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

    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 from Seattle to Denmark up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Denmark?

    The cheapest time of day to fly to Denmark is generally at night, when round-trip flights cost $632 on average. Morning departures are around 11% more expensive than evening flights, on average. The most expensive time of day to fly to Denmark is generally in the morning, which is peak travel time and where the average cost of a ticket is $782.

Reviews of the top 5 airlines serving from Seattle to Denmark

 
Need help choosing which airline to fly with from Seattle to Denmark? 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.
7.9
DeltaOverall score based on 7956 reviews
7.3Food
8.5Crew
8.2Boarding
7.9Comfort
7.9Entertainment
Airline reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

10.0 ExcellentAnonymous, Sep 2025CLT - BOS
Read more Delta reviews

Perfect flight both ways. On time, courteous staff, plane comfortable and cool. Best domestic flights I’ve had in awhile.

The food was terrible especially for a 15 hour international flight. The crew was unpleasant as well.

Really low quality food especially for an international flight. The crew also was surprisingly unpleasant except couple of ladies. I know we were not in first class but that’s no reason to treat customers as less.

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

Quick check in. Everything went smooth. I don't know what can be done about airline food.

Crew was good. The reservation got mixed up and they didn't have my TSA number. I am also a Silver Medallion and wasn't able to use Sky Priority.

Delta made it easy, comfortable and timely. The crew was fantastic.

This route with Delta always has delays or is cancelled. Aircrafts seem smaller and older. I fly Delta quite a bit - haven’t had issues with the international flights. But this route has always been the troublesome one

Nothing special. The crew never went out of their way for anything.

Three seats in first class were broken and while they were able to still acommodate us it was looking very touch and go and they had others they could not acommodate

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.

I do not have a problem with the airline but both my two suitcases that were supposed to go from Hawaii to Copenhagen didn’t get on the plane in Seattle. I arrive on Monday the 21st at 10:30 in the morning. I did not get my two suitcases before Friday late afternoon that is unacceptable.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

No choice of food. Needed to pay more even for a can of coke!!!

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.

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.

No meals included on this long international flight. Most airlines will offer you a meal when flying internationally. Not Icelandair. Your included choices are water and coffee. Poor customer service. The airport was also very confusing.

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!

It was good. The air plane is clean and staff were friendly.

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.

I liked Quiet people around me. Crew could have helped people with overhead luggage so they aren't moving other peoples bags around and causing problems for people that had there bags there first

The flight and crew were good. The customer experience on the ground could have been better. We had to reschedule our flight because of a delay on the previous flight. The attendants working the desk in Washington DC were not helpful. They told us to scan a QR code and that would get us rebooked. Why couldn't two people standing at their computers do this? We had to chat with someone to get everything figured out. It was extremely confusing.

The plane was delayed by two hours in Chicago which led to us missing the next flight. Lufthansa rebooked the flight and booked us a hotel for the night in Frankfurt. The level of customer service and getting us taken care of was superb. The flight crew and the service on the ground was superb.

It was a short flight, everything was good with it.

Flight was delayed over one hour and I had to pay to select my seat, even though my booking supposedly had free selection (I paid extra for this at time of booking)

Stop charging for alcohol overseas flights and start taking cash again not everyone wants to pay with card if the person is bigger give him seat on the outside seats not the middle in between the people is common sense and mainly if you fly for Lufthansa provides the sam service and experience...

good entertainment package but rather small seats for business class

The male attendant has zero personality. It seemed like he was over worked or hated his job, not once did he smile or made any contact with the people on the plane. Strictly business and call it a day!

Booked Economy but it translated to economy light for Lufthansa so now we are stuck paying an extra $75 per person both ways for our checked bags. If I had known that, I would have never booked these tickets because it came out to be more than other options. The booking in the kayak side clearly says Economy and has a link to the inormation for Lufthansa which states Economy included a checked bag. Super annoyed about that.

The flight from Dulles to Munich was just okay. The seats were comfortable and extra foot room was noticeable in comfort plus. Disappointed in the booking in so much I requested an aisle seat and then was assigned a middle seat. The food was inedible. Movie choices were moderate. I usually fly Delta, but this WA flight was cheaper. Next time, I'll happily pay the extra to fly Delta.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Three major things that led to my low rating, 1. Internet wasn't available for the whole time, and 2. TV became available way into flight, after numerous system reboots, and 3. Food is not good at all.

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Some how my flight was canceled, neither BA or Justfly.com accepted responsibility. I only found out about this the day before when I tried to check in. I had to book another flight which due to the time ( day before) cost me $300 more. I was still receiving notifications about the flight even when I was on another flight from you. So no my flight to London was not good.

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

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

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