Turkish Airlines' cancellation cost is based on a number of variables, including the time of the cancellation, the price type the client chose, the amount of time between the cancellation and the flight's departure, the location of the departure, and many more. Turkish Airlines Change Flight Fee sells tickets with Economy Promotion fares that are non-refundable, therefore in the event that a ticket is cancelled, there will be no reimbursement or return due. In addition, clients with Economy Restricted Fare, Economy Flexible Fare, and Business Promotion tickets will not be eligible for a refund when cancelling their tickets for these ticket classes.