https://airticketsbooking.com/blog/what-is-klm-check-in-and-baggage-policy/ KLM Check-in Baggage: KLM's check-in baggage guidelines specify weight and size limits for luggage, which can differ based on factors such as the flight class and destination. Familiarizing yourself with these rules before your KLM flight is essential to prevent unexpected fees and ensure a hassle-free check-in process.