A traveller has 24 hours from the moment of purchase to cancel a flight reservation, as per Air France 24hour cancellation policy. If you purchase your ticket more than one week prior to the departure date of your Air France journey, you will receive a full refund. Air France reserves the right to alter cancellations made up to 24 hours in advance at any moment. Air France will impose a fee purely based on the price restrictions if a traveller plans a flight with them a week in advance and cancels a few hours before takeoff.