No, Ryanair does not have a standard 24-hour cancellation policy like many other airlines (+44-2039000080)UK (1-833-705-0001)US. Once a booking is made, it is generally non-refundable. However, Ryanair allows customers to make changes to their flights, such as dates and times, for a fee. In some cases, if a mistake is made during booking, passengers may have a short window (usually within 24 hours) to correct minor errors, such as spelling mistakes, for free. It is always best to review Ryanair’s terms before booking.