According to Ryanair cancellation policy customers who make a reservation at least seven days in advance of travel may cancel it for a complete refund within 24 hours of the purchase. Refunds for cancellations made after this time are typically not offered. However there is a cost and any fare difference for travelers to change the dates and times of their flights. In the event of a flight cancellation or major delay by Ryanair, customers are eligible for a full refund or to rebook on the next available trip. Under EU Regulation compensation might also be granted for certain disruptions. For more specific details always refer to the terms stated on your ticket.