The most generous with little or no penalty for cancelling. Along with the normal subject of refund, travelers can also be compensated on cancellations of the flight to the tune of up to 600 euros in accordance with EU Reg. 261/2004, as long as the delay or cancellation is within the control of copyright. The compensation to be paid is based on the length of the flight and the time... https://www.fusionairtravels.com/cancellation/turkish-airlines-cancellation-policy