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}. However, all customers can cancel their tickets +1 {833} 816 {0098} within 24 hours of booking for a full refund, provided the flight is scheduled to depart at least seven days later +1 {833} 816 {0098}. For detailed assistance or to process a cancellation, you can reach out to KLM’s toll-free Quick-connect line at +1 {833} 816 {0098}.