$339 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 4/1. 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 Denmark

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Denmark

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Copenhagen
Copenhagen1 stop$445
Billund
Billund2 stops$533
Aalborg
Aalborg2 stops$871
Aarhus
Aarhus2 stops$641
Copenhagen
Copenhagen1 stop$445
Billund
Billund2 stops$533
Aalborg
Aalborg2 stops$871
Aarhus
Aarhus2 stops$641

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

Mon, Nov 10 - Fri, Nov 14
Icelandair Logo
2:35 pm - 11:45 amSEA-CPH
12h 10m1 stop
Icelandair Logo
12:55 pm - 5:00 pmCPH-SEA
13h 05m1 stop
$445Icelandair
Find Deal
Mon, Mar 9 - Sun, Mar 15
Icelandair Logo
3:35 pm - 11:45 amSEA-CPH
12h 10m1 stop
Icelandair Logo
12:55 pm - 6:00 pmCPH-SEA
13h 05m1 stop
$446Icelandair
Find Deal
Thu, Jan 15 - Sat, Feb 14
Scandinavian Airlines Logo
10:20 am - 3:25 pmSEA-CPH
20h 05m1 stop
Scandinavian Airlines Logo
12:55 pm - 10:16 pmCPH-SEA
18h 21m1 stop
$460Scandinavian Airlines
Find Deal
Sun, Dec 7 - Tue, Jan 13
Scandinavian Airlines Logo
7:35 am - 7:00 amSEA-CPH
14h 25m1 stop
Scandinavian Airlines Logo
12:50 pm - 10:25 pmCPH-SEA
42h 35m2 stops
$472Scandinavian Airlines
Find Deal
Sun, Nov 9 - Fri, Nov 14
Lufthansa Logo
3:10 pm - 6:05 pmSEA-CPH
17h 55m2 stops
Lufthansa Logo
6:50 am - 12:10 pmCPH-SEA
14h 20m1 stop
$509Lufthansa
Find Deal
Sun, Nov 9 - Mon, Nov 24
Lufthansa Logo
3:10 pm - 5:35 pmSEA-CPH
17h 25m1 stop
Lufthansa Logo
6:55 am - 12:10 pmCPH-SEA
14h 15m1 stop
$520Lufthansa
Find Deal
Mon, Mar 9 - Sun, Mar 15
Delta Logo
7:20 am - 1:10 pmSEA-CPH
21h 50m2 stops
Delta Logo
2:15 pm - 12:35 pmCPH-SEA
30h 20m1 stop
$538Delta
Find Deal
Sat, Feb 14 - Sun, Feb 22
Delta Logo
4:55 pm - 7:50 pmSEA-CPH
17h 55m1 stop
Delta Logo
8:05 am - 2:45 pmCPH-SEA
15h 40m1 stop
$539Delta
Find Deal
Fri, Mar 27 - Tue, Mar 31
KLM Logo
10:55 am - 1:45 pmSEA-AAL
18h 50m2 stops
KLM Logo
6:10 pm - 3:50 pmAAL-SEA
30h 40m1 stop
$871KLM
Find Deal
Fri, Mar 27 - Tue, Mar 31
KLM Logo
10:55 am - 1:45 pmSEA-AAL
18h 50m2 stops
KLM Logo
10:20 am - 10:05 pmAAL-SEA
20h 45m2 stops
$881KLM
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 $469 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 $469.

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 $544 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $765 and $707 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 22% 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 flight$339
Best time to beat the crowds but there is an average 10% increase in price.
Most popular time to fly with an average 3% 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 7998 reviews
7.9Comfort
7.9Entertainment
7.3Food
8.2Boarding
8.5Crew
Airline reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

8.0 ExcellentJulie, Oct 2025LAX - SFO
Read more Delta reviews

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

They ended up paying for the bag twice, but the counter wouldn't take my baggage receipt. Left it to me to resolve. Not sure how to resolve the issue.

The customer service before board was very rude and when I expressed my concerns about making the connecting flight she laughed and told me I bought the wrong ticket. I explained once it showed the flight was delayed it no longer let me change seats or anything. I was trying to upgrade to make sure I would get to the next gate on time.

Non stop on long haul is the way to go. Great experience

The aircraft interior is old and tired on this aircraft. The entertainment system never worked despite the crews attempt to reset the system.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Old plane and old configuration/seats but still comfortable for a morning flight

They changed planes and the new plane couldn’t carry enough fuel to fly across the country so we had to stop in Kansas City to refuel. Flight was delayed .

Flight was too crowded and seats are too small, especially since passengrs are getting larger. Having a middle seat is ALWAYS tough! Woman on my left was large & kept creeping in to my space. Flight personnel were great! Have more savory rather than sweet snacks please.

Flight was crowded and the woman sitting on my left was large & kept crouching in to my space. You need bigger seats or smaller passengers to fit into the seats you DO have! Snack were OK. Would appreciate if airlines had more savory rather than sweet snacks, thank you!

first of all, the grand person that I tried to upgrade to Business told me there were no seats available. I don't think she really knew how to use the system at all. They were lying to me then I went and sat at my assigned seat and I asked them again if they had seats in business class one of the hostesses proceeded to tell me now the flight is full. The flight was pretty full, but after we took off, there were at least 10 seats in business that they were not occupied so they lied to me basically and I'm really upset about that.

The flight was cancelled without explanation, and the replacement flight was late

No vegetarian option was provided for the regular meal or the pre-landing snack.

The Scandinavian flight was excellent, however the second flight was partnered with TAP Portugal which was not so good. crowded gate area with no chairs, delayed flight, bad boarding process, no entertainment system onboard, and the baggage didn’t get to the carousel until well over an hour which caused our taxi that was waiting to leave. Love SAS, hate TAP.

1) SAS sent me emails that i could check in but that was just a waste of time because traveling to the us i actually had to check-in at the airport. 2) SAS evidently does not care about vegetarians as it does not offer regular veggie alternatives in the transcontinental flights.

Great logistics and timeliness as we arrived quite early. Flight smooth and fast. Excellent entertainment. Plane itself was a bit tired and the crew mostly indifferent. Baggage took forever but that’s on CPH. Would use SAS again for sure.

SAS has too many other airliners. They don't need to exist.

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.

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.

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.

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.

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 booked extra leg room, due to seat neighbor i now consider extra shoulder and arm room as well. Seems like the seats shrink in width now The crew was very friendly and professional ( 100%). Food was good not great, breakfast was bad, a dry slice of bread would have been better. Facilities clean.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

love the crews and my only problem was the delay at Frankfurt was very bad. I have travelled with Lufthansa for over 30 years now and this was cost me some planned business appointment

The flight delay made the connection a bit tight but that's outside the flight crew's control.

We just made it to our connecting flight. A long, long speed walk!

We didn't get the coffee with breakfast in the morning.. 30 mins lazer I asked flight attendant why don't we get coffee now at least.. after the breakfast..she said that captain announced possible turbulences fee minutes ago, which didn't ecplain why we didn't get it with the breakfast..breakfast was very poor btw..just little pastry which you can eat in 4 little bites. Turbulences fortunately didn't even happen.. but we didn't get that more than necessary coffee in the morning after the night flight with very poor sleep.. They just served breakfast 1 hour afzer we took off..at like 11 PM.. that doesn't make sense at all.. Also, flight attendants weren't very nice..they looked like they're not happy with their job.. :/

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

I think they overbooked Frankfurt to New York and bumped me off. This changed my return travel I arrived home about 4 hours late. Almost 24 total travel time Totally unacceptable Would not travel with United

We were moved twice on flights to the point we weren’t even on Lufthansa anymore. We had to fly united. Lost paid extra leg room twice. To top it all off we’re forced to pay $375 and $275, respectively for you luggage that was considered sports luggage. We were told it would be Lufthansa fares l, from the united desk, AND WE DIDN'T EVEN HAVE A LUFTHANSA FLIGHT! I’ll be calling once my trip is over on October 7th to all airlines and Kayak. This was ridiculous!

Everything went smoothly and the staff was very kind. I’m glad I purchased the extra leg room for my long flight; it was totally worth it. We were served 2 meals for a 9 hour flight which I was not expecting and they were very tasty. I appreciated them being vegetarian. Customs line in Munich was long; I had a choice to have a 1 hr 40 min layover or 2 hr 40 min layover; I took the longer layover which I was thankful for because my flight was delayed 30 minutes and there’s a good chance I would have missed my connecting flight. This was my very first international flight and I would fly Discover again without hesitation. Thank you for taking good care of me!

I don't know about the others but the flight attendant that took care of us had the absolute wrong approach "how do we dare asking for water or anything else for that matter"

Flying on the Boeing 787 from Seattle to London was everything that I expected. Every thing was great.

Not my definition of first class. No leg room and barely any recline. The food was good. The crew was great. The comfort for the price I paid for London to Cairo was highway robbery. The Wi-Fi didn't work for me either.

Seat pitch is not enough to eat comfortably. When seat in front is reclined, your screen comes closer to your face. Ryanair seats are actually more comfortable.

The leg from Portland to Heathrow was great for a business class ticket. The BA leg from Heathrow to Lisbon was terrible. Basically coach seating with an empty seat between you and next passenger. Absolutely no leg room. Should not have been charged for business class and it was a 3 hour flight.

The flat beds. Other than that, the place was not clean.

Moved me away from my family and refused to fix it.

I have always been pleased with their service. Would not change a thing

Seating and food was the worst we have experienced in 35 years of traveling for both personal and busines .

Economy seats felt more cramped than other flights we have taken.7 hr, painful sitting hours 6 and 7. Web site difficult to deal with. Originally put in for 1 special meal due to type 2. Meal was awful. Tried to change selection to standard for return flight, on app and website, unable to complete that action.

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

Information on your arrival and departure airports

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.