How to Check In Online with KLM Passengers,For a KLM online check-in, visit the KLM website, navigate to My Trip, and enter your reservation details. Click "check-in," provide the required information, verify it, and download your boarding pass. Alternatively, Online Check-in KLM By Phone , through the KLM app (download, provide details, choose check-in, provide information, verify, and receive boarding pass), or at the airport.Alternatively, you can visit the Airlines Pet Policy website for quick assistance. 🌎https://www.airlinespetpolicy.com/blog/klm-check-in-policy #onlinecheck-inklm #klmcheck-inpolicy #klmcheck-infee