£35 Find Cheap Flights from Ireland to Denmark – Compare and Save

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KAYAK's insights & trends for flights to Denmark

Get data-powered insights and trends into 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?

The cheapest ticket to Denmark from Ireland found in the last 5 days was to Copenhagen, at £57 return. The most popular route is Dublin (DUB) to Copenhagen (CPH) and the cheapest return ticket found on this route in the last 5 days was £57.

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

The cheapest month for flights from Ireland to Denmark is December, when tickets cost £73 (return) on average. On the other hand, the most expensive months are July and April, when the average cost of round-trip tickets is £127 and £108 respectively.

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 £109 on average. Morning departures are around 56% more expensive than evening flights, on average. The most expensive time of day to fly to Denmark is generally at night, which is peak travel time and where the average cost of a ticket is £269.

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

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 21% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 26 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 £98.

Good to know - Cheap tickets from Ireland to Denmark

Low season

January

Cheapest flight

£35
Best time to beat the crowds (15% less expensive on average)
Most popular time to fly (26% more expensive on average)
Flight from Dublin to Copenhagen

FAQs for booking flights from Ireland to Denmark

  • 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 Saturday when return tickets can be as cheap as £186. On the other hand, the most expensive day to fly is Monday, when return prices are £305 on average.

Reviews of the top 4 airlines flying from Ireland 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.
8.2
NorwegianOverall score based on 292 reviews
7.7Comfort
8.4Crew
6.8Food
8.0Boarding
6.3Entertainment
Airline reviews

Questionary would have N/A available, I did not eat, can't say I'm either sad or happy with that.

10.0 ExcellentIngvaldur Þór, Nov 2025
Read more Norwegian reviews

Questionary would have N/A available, I did not eat, can't say I'm either sad or happy with that.

budget airline, you get what you pay for but pilots flew great, crew was awesome!

Delays, uncomfortable, and no compensation or free water after being stuck in the plane for more than an hour!

Flight was 1 hour late. The luggages also arrived 45 minutes late.

Ticket desk was really helpful in resolving issues with ticket machine. Reception staff were less than helpful.l and grumpy when issues were highlighted.

The flight was delayed by 1.5 hours & the gate was changed, so it was a long walk from the 1st gate to the 2nd gate. The bags took about 1 hour to arrive after landing. Ridiculous wait for bags for which we paid extra $$$$$$$

The upholstery of our seats (7A+7B) were in bad shape: twisted, hard and uncomfortable. We also had a 55 minutes delay. Apart from that everything was OK.

We arrived on time to our destination and the flight was peaceful (and short!.)

30 minutes late as usual. Could not pay for any food or drinks, despite using three cards. Amex, Mastercard and Visa. Uncomfortable seats

Norwegian ground crew did NOTHING regarding priority boarding. I paid for priority and there was no priority boarding effort made AT ALL at the gate.

The cancellation was disappointing but the arrangement afterwards was prompt and efficient. The seats arrangement were good. I still need to read further the details of how to get the compensation. All the flights taken were 100% delayed, not to mention the one that was cancelled. I couldn't sleep much in the flight from Abu Dhabi to Hong Kong because the egornomic design of the seat is not very comfy. Although there is more leg room, the seat itself was too tight and too hard. I suppose it would be the design of the seat that needs further improvements. The service of the crew and the boarding was good. The food on the flight from Amsterdam to Abu Dhabi was better maybe because the flight was in the morning, the food feels much fresher to the palate. And it was tastier.

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

They only had vegetarian food left on the flight which I wasn’t happy about. I didn’t get any food to eat at all.

Transavia flight, was booked as KLM but i couldnt select seat or access boarding pass with KLM at all. Crammed seating and very no frills experience all around. First and last time.

Flight left a few minutes late, but that's it. I wish the seats could be wider and recline more.

Booked connecting flights with KlM. My serving flight was the furthest part of the airport. On arrival in Zurich. My two cases arrived but only one carry on belong to my son. His three suitcase didn't arrive. After enquiring we discovered they were still in Amsterdam. We landed at 11.12. We eventually left the airport just after one.

Overall a good experience. We were disappointed when we had to check our carry on due to the plane being full. KLM hadn’t notified us and we had valuable items in the carry on but they still made us check it. Some of the food was great and some was mediocre. Crew is really kind and funny.

Amazing KLM service and brilliant economy comfort seats. Well worth the extra.

one of my bags was drenched with fish smelling water and all my new clothes bought at dublin and the 23kg checked in bag were all gone waste with very pungent fish smell and also having stains

Everything in general was great, but we left 30 minutes late

Flight from Geneva arrived in Cophegan with one hour to make connection we had a 15 minute walk from one terminal to next (arrived terminal B had to go terminal C) and still had to go thru passport control. Fortunately we got someone to help us get thru and our flight was already boarding. We boarded with ten minutes to spare. In the futygoing into Copenhagen needs more time between connections

I was on SAS, not AeroMexico. How the great have fallen. I used to revere SAS-no more. First off, I was charged a $150 for two checked bags (that's almost twice what the bottom-feeder American Airlines charges). Talk about predatory. The aircraft was a crappy Boeing 757, with a seat pitch tighter than a cut-rate airline like United or Frontier. That was one uncomfortable seat, not leather, but rough cloth. Most of all irritation, no soda or snack on a four hour trip. Wow, cheapskate cut-rate airline. They used to be very comfortable and generous, but that was a decade ago. Never again, that's for sure. The crew was friendly and professional ad they did get there on-time - the only positive aspect of this experience.

The airline and crew were incredible, the premium plus option was very comfortable, and the food delicious. I would recommend flying with them!

We flew economy+ and it was a great experience. The crew was friendly and helpful, there was a great selection of inflight entertainment and food/beverages.

My flight got cancelled from JFK to Mumbai and got the refund also from agency but Kayak kept sending me reminder about flight. Need to fix your system. To me this is concerning to use Kayak or not in future seems like this is just a hosting platform and has no clue on how the third party player are managing the customer. I did call for support when my flight got cancelled they just forwarded my call to Third party and I end paying lot money for last min booking

Wait times for passport control in Copenhagen were ridiculous. I will never return to that airport, worst airport I have ever been in.

Good flight. Mass boarding. Seats fairly comfortable. Food okay although may have upset my stomach a bit.

not a good experience they booked my connections with not enough time to catch my connection and it added 10 hours extra travel time to my day. I almost missed my connection on the way there too.

The crew were nice and courteous. Exonomy seats were worse than expected. Overhead bin space was non existent thanks to loose enforcement of the carryon size and letting passengers put up their purses jackets and backpacks up there leaving no space for others with a small conforming carry on. Food was not good at all. Perhaps worse chicken I ever had in my life. I had to have them take it after tasting how bad it was. Whoever made that should not be in food making business.

Flight canceled and rescheduled a day early when I was still on a boat in the Mediterranean. I was never notified that my flight was canceled.

flight delay was announced after passengers were staged to board the flight. Communication regarding subsequent gate changes was poor.

Although our departure (DUB) was slightly delayed we reached our destination (LBA) ahead of schedule. The price was very competitive too (around €100 return). Plus, the departure times for both legs were very good: 13:05 and 15:10, respectively. I gave a neutral rating for Food and Entertainment because I didn't avail of either.

Just pushing back from gate now. Boarded into fourth aircraft with 13 hour delay to scheduled departure. Crappy experience.

Notified as to why there’s a delay with our flight.

From boarding to disembarking, the whole operation was very efficient.

They boarded us but somehow did not manage to record us boarding, so rather than check if we were onboard they removed our bags from the aircraft. I got a call from Ryanair staff in Dublin when I landed in Madiera asking me where I was!!! When I said I was in Madiera I was told what had happened. Our bags were to be sent to Madiera the next day via Manchester, they didn’t arrive. They are now due to arrive two days before we leave. I don’t see myself using Ryanair again unless I am forced to and even then I may just refuse.

Flight was over an hour late. Boarding was really messy with long queues at the plane.

There plane had a technical pricken so we had to disembark, but the replacement aircraft was provided within one hour so there was not much delay.

I forgot my headphones in the plane, how can I retrieve it?

Keep track of your departure times and communicate in Airport. I could have spend an hour more in my lounge

More options for your flight to Denmark

Complete your trip to Denmark with a hotel stay or car hire