€30 Find Cheap Flights 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 Ireland to Denmark departing on 17/9. 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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Best Denmark Flight Deals

Cheapest return prices found by our users on KAYAK in the last 72 hours
Copenhagen
Copenhagendirect€100
Billund
Billund1 stop€161
Aalborg
Aalborg1 stop€163
Copenhagen
Copenhagendirect€100
Billund
Billund1 stop€161
Aalborg
Aalborg1 stop€163

Book Cheap Denmark Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights 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 return flight deals to Denmark

Sun, 26 Oct - Sun, 2 Nov
Ryanair Logo
05:45 - 09:05DUB-CPH
2h 20mdirect
Ryanair Logo
09:30 - 10:50CPH-DUB
2h 20mdirect
€100Ryanair
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Sat, 25 Oct - Sat, 1 Nov
Ryanair Logo
19:35 - 22:45DUB-CPH
2h 10mdirect
Ryanair Logo
23:45 - 01:05CPH-DUB
2h 20mdirect
€101Ryanair
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Tue, 21 Oct - Fri, 24 Oct
 Logo
09:10 - 12:20DUB-CPH
2h 10mdirect
 Logo
14:45 - 00:55CPH-DUB
11h 10m1 stop
€102
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Mon, 3 Nov - Tue, 4 Nov
 Logo
12:00 - 20:50DUB-CPH
7h 50m1 stop
 Logo
22:00 - 23:20CPH-DUB
2h 20mdirect
€111
Find Deal
Thu, 20 Nov - Tue, 25 Nov
Scandinavian Airlines Logo
19:05 - 22:10DUB-CPH
2h 05mdirect
Scandinavian Airlines Logo
10:20 - 11:45CPH-DUB
2h 25mdirect
€132Scandinavian Airlines
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Thu, 6 Nov - Sun, 9 Nov
Scandinavian Airlines Logo
19:05 - 22:10DUB-CPH
2h 05mdirect
Scandinavian Airlines Logo
08:00 - 09:25CPH-DUB
2h 25mdirect
€142Scandinavian Airlines
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Mon, 6 Oct - Tue, 14 Oct
KLM Logo
05:55 - 13:30DUB-BLL
6h 35m1 stop
KLM Logo
18:35 - 22:25BLL-DUB
4h 50m1 stop
€162KLM
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Sun, 5 Oct - Tue, 14 Oct
KLM Logo
05:55 - 13:30DUB-BLL
6h 35m1 stop
KLM Logo
18:35 - 22:25BLL-DUB
4h 50m1 stop
€163KLM
Find Deal
Thu, 9 Oct - Thu, 16 Oct
Lufthansa Logo
05:55 - 14:05DUB-BLL
7h 10m1 stop
Lufthansa Logo
06:00 - 16:55BLL-DUB
11h 55m1 stop
€171Lufthansa
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Tue, 3 Mar - Sat, 7 Mar
Lufthansa Logo
05:00 - 13:20DUB-BLL
7h 20m1 stop
Lufthansa Logo
10:35 - 16:25BLL-DUB
6h 50m1 stop
€176Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Denmark

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

What is the cheapest flight to Denmark?

These are the best return prices found by users searching on KAYAK in the last 72 hours.

The cheapest ticket to Denmark from Ireland found in the last 72 hours was to Copenhagen, at €91 return. The most popular route is Dublin (DUB) to Copenhagen (CPH) and the cheapest return airline ticket found on this route in the last 72 hours was €91.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Ireland 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 Ireland to Denmark is January, when tickets cost €183 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is €546 and €348 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights 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 a flight from Ireland to Denmark, you should book around 3 weeks before departure, which saves you about 12% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Which is the cheapest airport to fly into in Denmark?

Prices will differ depending on the departure airport, but generally, the cheapest airport to fly to in Denmark is Kastrup Copenhagen Airport (CPH), with an average flight price of €154.

Good to know

Low seasonJanuary
Cheapest flight€30
Best time to beat the crowds (24% less expensive on average)
Most popular time to fly (6% more expensive on average)
Flight from Dublin to Copenhagen

FAQs - booking Denmark flights

  • How does KAYAK find such low prices on flights from Ireland 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 Ireland to Denmark.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ireland to Denmark is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ireland to Denmark?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from Ireland 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 Ireland 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 Ireland 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 day to fly to Denmark?

    Based on KAYAK data, the cheapest day to fly to Denmark is Friday when return tickets can be as cheap as €226. On the other hand, the most expensive day to fly is Sunday, when return prices are €369 on average.

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

    The cheapest time of day to fly to Denmark is generally in the afternoon, when retur flights cost €199 on average. Morning departures are around 50% cheaper than evening flights, on average. The most expensive time of day to fly to Denmark is generally in the evening, which is peak travel time and where the average cost of a ticket is €541.

Top tips for finding cheap flights to Denmark

  • Looking for cheap airfare to Denmark? 25% of our users found return tickets to Denmark for the following prices or less: From Dublin €936
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Denmark flight deals.

Reviews of the top 3 airlines flying to Denmark

 
Need help choosing which airline to fly with from Ireland 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.
7.8
KLMOverall score based on 1385 reviews
7.3Food
7.8Boarding
7.2Entertainment
8.4Crew
7.7Comfort
Airline reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

2.0 MediocrePeter, Aug 2025SAN - AMS
Read more KLM reviews

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

Ad experience - been flying many years with them but they are losing out to other carriers with their service and bagage / seating policy. My 2 12-yo kids were not placed with the parent. Absurdity.

Short flight so it was okay. Nice crew, all very pleasant and professional. We were near the back in row 27 so just as we got our drinks, we started our descent so had to drink very quickly!

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

I appreciate that KLM was proactive in informing me of the 2 hour delay which enabled me to replan my travel. It was a bit stressful not knowing whether my connection from Montreal to Ottawa was happening. But the ground and air crew did a good job at comforting and assuring me.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Legroom not all it could be, especially when the seat in front is reclined. Otherwise it was good, food and beverage were nice.

You should not have to pay for WiFi in business class

This fight left ahead of time which meant it arrived early which was great. Staff were very professional, but as with all these Short hop Flights the food was a disappointing snack There was no entertainment on this flight, but I did not expect any

I flew premium economy and this was a good option. Although the seats didn’t recline much, I was able to get some sleep with my head propped against the window. The food was good and the entertainment was wonderful The staff were very attentive and professional

budget airline, not a lot of amenities but perfectly priced for a 3.5hr flight. Crew/Pilots were great, communicative, and overall provided a great experience for the price point. Have flown with Norwegian when coming in/out of Norway for the past x10 years now!

Unfriendly staff at boarding gate. Unclear announcement at about gate change. Low cost airline with no amenities on board. Bring your own water.

Terrible communication about cancellation of flight. Put on a flight the day after our departure day even though there were seats the following day

…not even a power outlet. Nothing but uncomfortable seating with unhelpful staff.

Overall flight was fantastic.i really enjoy the whole journey .

Little more legroom would have been nice. But it's a very short flight, so it was fine really.

Short flight, some waiting to board, but no issues and no frills.

No staff at the gate and the flights were not posted on the board so we missed our flight. Horrible experience. Be VERY careful flying Norwegian. Super limited ability to communicate with their slim staffing and restricted hours.

Tickets were cheap but it says no where that food was not included, I travel Austrian, Swiss and Turkish airlines all the time always food is included, never flew Norwegian again

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.

Everything you need to know for your flight to Denmark

Cabin class types available on flights to Denmark

Cabin classes available on flights to Denmark. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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