copyright allows free cancellation within 24 hours of booking if the flight is at least 7 days away from boarding. After that, cancellation fees apply that is based on your fare type—refundable fares may be canceled with minimal costs, while non-refundable fares often offer only partial refunds or travel vouchers. https://getlowfare.wixsite.com/getlowfare/post/does-qatar-have-a-free-cancellation-policy