https://airticketsbooking.com/blog/what-is-klm-check-in-and-baggage-policy/ KLM Check-in Policies: KLM's check-in policies ensure a smooth pre-flight experience. Passengers can check in online, at the airport, or through self-service kiosks. Baggage allowances and restrictions are clearly communicated, and options for seat selection are available. KLM prioritizes passenger convenience, aiming for a hassle-free start to their journey.