If you need to change your flight, you can do so with KLM Airlines without hassle. KLM Flight Change Policy can offer to change flights for its passengers. If your request is within 24 hours of the flight booking and at least 7 days before the travel date, no fee is required. Most flight change policies depend on ticket fare, like economy class, business class, or general. For more, you can visit the KLM Airlines official website or contact their customer service.