Ryanair cancellation policytypically involves non-refundable tickets, where fares are generally non-refundable except in cases where the flight is cancelled by Ryanair. If you need to cancel your non-refundable ticket, Ryanair may not provide a refund, and you may lose the value of the ticket. However, Ryanair does offer options for flight changes, which may involve a change fee and any fare difference. The specific fees and policies may vary depending on the fare type, booking channel, and other factors.