KLM flight cancellation policy is essential for a hassle-free travel experience. KLM allows cancellations within 24 hours of booking for a full refund, provided the departure is at least 7 days away. Beyond that, cancellation fees may apply depending on the fare type. For assistance with cancellations, refunds, or rebooking, call +1-866-679-5070 and speak with a representative. Stay informed and manage your travel plans effectively by reviewing KLM’s policy before making changes.