You may be too late to book those cheap flights though, as the promotional offer expired at 13:15pm today, Thursday February 12.
Nevertheless, there are good prices available if you book early.
The Dublin 2015 winter schedule contains 63 routes, including new direct flights to Copenhagen on a daily basis from March 18, and to Lublin in Poland.
Other new routes include the extension of its Venice Treviso summer flight from seasonal to year-round, and increased frequencies on the Alicante, Barcelona, Berlin, Budapest, London Gatwick, and Madrid schedules.
As a promotional offer, Ryanair offered 3,000 seats to Copenhagen for 30c, though you had to be quick on the draw, as the offer lasted for 3 hours only, expiring at lunchtime today.
The 30c price reflects Ryanair’s 30th anniversary, which it celebrates this year.