https://airticketsbooking.com/blog/what-is-klm-check-in-and-baggage-policy/ KLM Check-In through their website and mobile app starting 30 hours before departure. Airport counters and automated kiosks are additional options for check-in. Have travel documents and booking details ready for a smooth process.

https://www.lowfaresfinder.com/blogs/can-you-cancel-a-klm-flight-and-get-money-back KLM 24 Hours Cancellation without incurring cancellation fees. This policy grants flexibility for last-minute changes or booking errors. Cancellation can be initiated through KLM's website or customer service, and eligible bookings usually receive refunds or rebooking options within this timeframe.