The refund requested for expired tickets will not be considered. To check your tickets expiry date, please visit the official website, Copa Airlines reservation. Copa Airlines offers a convenient and comfortable booking and cancellation service for its passengers. Hence, if you are a customer who has to cancel the ticket due to some emergency, or hectic work schedule, you can easily cancel your ticket with Copa Airlines and get your refund on time, or use it for your next flight.
Please read the originial post here: http://digiparker.post-blogs.com/18004817/copa-airlines-reservations-cancellation-policy