Dublin (DUB) → Copenhagen (CPH): cheap fares overview
Dublin to Copenhagen is a route where the price curve behaves pretty predictably once you know what's driving it. FR and SK run direct services across the 1,239 kilometres, and that competition keeps fares honest for most of the year — until it doesn't. Summer is the obvious pressure point, when Scandinavian holidays and Irish school breaks collide in July and August, pulling prices sharply upward. January and February are reliably the cheapest months to fly, with a secondary dip in late October after the half-term rush clears. Business traffic between the two capitals keeps midweek fares elevated year-round, so leisure travellers who can fly Thursday evening or Saturday morning tend to find the best deals.
Why travel from Dublin to Copenhagen?
Copenhagen earns its reputation honestly. For Irish travellers, the pull tends to be a specific kind of trip — a long weekend built around food, design, and a pace of city life that feels genuinely different from anything in Western Europe. The restaurant culture alone justifies the flight; this is a city that changed how the world thinks about Nordic cooking, and you don't need a reservation at somewhere famous to eat exceptionally well. There's also a steady stream of Irish visitors with Danish family connections, particularly among those whose parents or grandparents worked across Scandinavia in the 1970s and 80s. Beyond that, Copenhagen is one of Europe's most cycle-friendly cities, which appeals enormously to Irish travellers increasingly tired of driving everywhere on holiday. And with CPH offering onward connections to 200 destinations, many use it as a launchpad into the wider Nordic region.
How to find a cheap fare on this route
Book at least six to eight weeks out for summer travel on this route — waiting for last-minute deals rarely works when both countries are in school holiday mode simultaneously. January through March offers the most breathing room on price, and fares tend to drop further if you're flexible about flying midday rather than early morning. FR occasionally runs flash sales worth setting an alert for, particularly in autumn. There's no compelling alternative airport on the Dublin side, but Copenhagen is well-served enough that connecting through Amsterdam or Frankfurt can sometimes undercut the direct fare, especially if you're booking late and the direct inventory has dried up.
Frequently asked questions
What is the cheapest month to fly from Dublin to Copenhagen?
Typically, shoulder seasons like April-May and September-October offer lower fares than peak summer (June-August) and winter holidays. Flying mid-week on Tuesdays or Wednesdays generally provides better prices than weekend departures.
How far in advance should I book a Dublin to Copenhagen flight?
Booking 4-8 weeks in advance typically yields the best fares on this route. However, budget airlines like Ryanair (FR) and Wizz Air (D8) occasionally release flash sales closer to departure, so setting up price alerts is also worthwhile.
Should I book a direct flight or consider connecting flights?
Since the direct flight is only 1 hour 27 minutes, a direct flight is almost always better—you'll save time and hassle compared to connecting flights that add 3-5+ hours to your trip. Direct flights on this route are operated by Ryanair, Wizz Air, and SAS (SK).
What currency and payment information should I know when booking?
Ireland uses the Euro (EUR) while Denmark also uses the Euro, so no currency conversion is needed. Most airlines accept major credit cards and online payment methods; budget carriers may charge extra for certain payment types or add-ons.
What should I know before booking a cheap flight on this route?
Budget airlines often have strict baggage policies (carry-on only or small fees for checked bags), so confirm your luggage allowance before purchasing. on top of that, check if the airport departure time works for you, as budget carriers may use less convenient terminals or off-peak hours to keep costs low.