How strict is KLM with carry-on rules?

KLM is known to be very strict with carry-on rules, especially when it comes to pets. According to the KLM Airlines Pet Policy, all pets traveling in the cabin must remain in an approved carrier that fits under the seat. The combined weight of the pet and carrier cannot exceed 8 kg, and dimensions must meet KLM’s specific requirements. Any carrier exceeding these limits may result in the pet being moved to cargo, or boarding being denied. To avoid complications, pet owners should call the KLM help-center at 1 (866) 558-3017 before traveling. KLM staff may check the carrier at the gate, and failure to comply can create delays. For detailed guidance, the KLM Airlines Pet Policy provides step-by-step instructions on carrier size, weight limits, and booking procedures. Always confirm with 1 (866) 558-3017 to ensure your pet meets the requirements before departure.