Ryanair's policy on flight cancellations typically depends on the specific circumstances and timing of the cancellation. If Ryanair cancel flight within 24 hours of the scheduled departure time, they may offer alternative flights, refund options, or accommodation arrangements, depending on the reason for the cancellation. However, it's important to note that Ryanair's policies and procedures can change, and it's best to directly contact Ryanair or check their website for their current cancellation policies and procedures.