Here’s a link to a fantastic webpage put together by the moneysavingexpert in the UK. He was interested in finding a way to easily access all the very cheap flights advertised frequently by low fares airlines like Ryanair and EasyJet.
Click on this link here to access the page. Luckily enough for us, it also works for flights from Dublin. Put in the location of where you want to go to, and the timeframe that you’re interested in travelling. Then, just put in the maximum price that you’d like to pay.
I tried this for a couple of destinations in Europe from Dublin (Bristol, Paris and Girona) and put in maximum prices of €1, €5 and €10, and it picked up cheap flights very quickly. Obviously, you may not get exactly the dates you’re looking for, but if you’re flexible, this can be a very powerful way of getting actual cheap flights.