Ryanair operates schedules in line with the standard IATA winter and summer season. The winter season runs from the end of October until the end of March and summer season from the end of March until the end of October.
The summer scheduling season begins on the date of DST (Daylight Saving Time) introduction in European Union countries, which currently always takes place on the last Sunday in March. The winter scheduling season commences on the date DST (Daylight Saving Time) ends in European Union countries, which currently always takes place on the last Sunday in October.
Ryanair endeavor to load flight schedules at least five to six months in advance of operation. For example, the 2011 winter season which commences on the 30th October was loaded for sale on 19th April. While the initial summer 2012 schedule will be available online to book by the end of August 2011.