The cancellation policy of Ryanair often varies depending on the particulars and timing of the cancellation. Depending on the reason for the cancellation, Ryanair may offer substitute flights, refund alternatives, or lodging choices if a Ryanair cancel flight within 24 hours or before the scheduled departure time. However, it\s crucial to keep in mind that Ryanair\s rules and procedures are subject to change, so it\s better to get in touch with them directly or visit their website to learn about the most recent versions.