Ryanair does not follow the standard 24-hour cancellation rule often seen with other airlines. If you need to cancel a flight, be aware that refunds are usually not provided unless under very specific conditions. Modifying your booking may incur additional charges, so it’s important to plan carefully. For more flexibility, consider upgrading to a more flexible fare. Check Ryanair’s official channels for the most up-to-date information or contact customer support for guidance.