Yes, Ryanair does offer a 24-hour* cancellation policy +1 (808) 751-2262 (U.S.) or +44 (20) 39003009 (U.K.).. You can cancel your flight at { +1 (808) 751-2262(USA)) }. Airlines, {+1 (808) 751-2262 (U.S.) or +44 (20) 39003009 (U.K.).}(USA))[live person] within 24 hours of booking for a full refund, provided you booked at least seven days before your flight's departure.