Cathay Pacific change flight fee policies vary depending on the fare type and travel route. Passengers with Economy Basic or Standard fares typically face higher change fees, while those with Flex, Premium Economy, or Business fares may enjoy lower or even no change fees. Additionally, if the new flight is more expensive, travelers are required to pay the fare difference. All flight changes must be made before the scheduled departure time. You can modify your booking easily through the Cathay Pacific website, mobile app, or by contacting their customer service. Always review fare conditions before booking to understand potential fees and flexibility options.