You can manage your KLM booking online through the “My Trip” section on the official KLM website or mobile app. Simply enter your booking reference (PNR) and last name to access your reservation. Once logged in, you can view your itinerary, change flights (subject to fare rules and availability), select or change seats, add extra baggage, request special meals, update contact details, and check in online. Keep in mind that fees or fare differences may apply depending on your ticket type, and more complex changes might require contacting KLM customer support.
Read More: https://www.flyviatrip.com/manage-booking/klm-airlines/
Read More: https://www.flyviatrip.com/manage-booking/klm-airlines/