KLM The national carrier of the Netherlands, Royal Dutch Airlines, is a well-known carrier with regular service to over 145 locations across the world. In addition to making bookings simple, the airline provides a useful KLM flight change policy that enables travellers to modify their travel plans as opposed to cancelling the journey. If your reservation qualifies under the airline's flight modification policies, you can easily modify it or change the itinerary. You've come to the right place if you're looking for further information on the regulations. This guide will assist you in comprehending the numerous requirements needed to alter a KLM airline reservation.