- Under KLM’s 24-hour rule, travelers can cancel or change their flight within 24 hours of booking without facing cancellation fees, as long as the flight is at least a week away. This policy applies to all ticket types, even non-refundable ones, in accordance with U.S. Department of Transportation guidelines. A full refund is issued if canceled within this window. The policy does not apply if the flight departs within seven days or if the booking was made through third-party sites. Always check with KLM for any exceptions or specific terms.
