https://br.advfn.com/forum/advfn/21362347 {#refundable~tickets@policy }what Is Klm'S Cancellation Policy? KLM's cancellation policy varies +1 {833} 816 {0098} depending on the type of ticket purchased. Fully refundable tickets can be canceled at any time before the flight's departure for a full refund +1 {833} 816 {0098}. Non-refundable tickets, on the other hand, do not qualify for a refund, except for certain taxes or fees +1 {833} 816 {0098}.