Copa Airlines cancellation fee varies based on several factors, including the fare type, time of cancellation, and whether your ticket was booked with miles. For non-refundable tickets and those cancelled within 24 hours of departure, fees can be high, exceeding $200. Award ticket cancellations also incur fees, ranging from $75 to $150. Always check Copa Airlines' website or contact them directly for the most up-to-date information and specific fees for your ticket.