Virgin Australia's cancellation policy varies depending on the fare type. Flex and Business fares usually allow free cancellations with full refunds or travel credits. Saver fares may incur a cancellation fee, and Lite fares are generally non-refundable. Cancellations must be made before the scheduled departure to be eligible for any refund or credit. Passengers can cancel flights via the Virgin Australia website or by contacting customer support. In cases of flight disruptions caused by the airline, full refunds or rebooking options may be offered.