This special policy allows travelers to cancel booked flights within 24 hours of purchase. However, the scheduled release date must be at least seven days from the date of purchase. If these terms and conditions apply to your airline ticket, you are entitled to a full refund in accordance with KLM Airlines Cancellation Policy. Additionally, there is no limit to the types of transport as it works with all types of tickets, including business class. KLM does not charge any fees to passengers who cancel their booked tickets within 24 hours of purchase. However, economy class ticket prices range from $100 to $400. Cancellation fees depend on many factors, such as the type of transportation and the duration of the cancellation.