Abstract: The invention relates to a method for optimising a flight plan consisting of an air route for an aircraft of a fleet of aircraft, each aircraft being designed to record flight data, the method comprising a preliminary step of learning a network of air routes specific to the fleet of aircraft, the method comprising a step of determining a fuel consumption model specific to the aircraft based on the flight data, the method comprising the subsequent steps of: —collecting meteorological data associated with the aircraft environment, and —determining an optimised flight plan for reaching the destination waypoint, based on a current position of the aircraft, the flight conditions of the aircraft, the predefined air route, the consumption model of the aircraft, the meteorological conditions and the previously defined optimal air routes.

Abstract: The invention relates to a method for optimising a flight plan consisting of an air route for an aircraft of a fleet of aircraft, each aircraft being designed to record flight data, the method comprising a preliminary step of learning a network of air routes specific to the fleet of aircraft, the method comprising a step of determining a fuel consumption model specific to the aircraft based on the flight data, the method comprising the subsequent steps of: —collecting meteorological data associated with the aircraft environment, and —determining an optimised flight plan for reaching the destination waypoint, based on a current position of the aircraft, the flight conditions of the aircraft, the predefined air route, the consumption model of the aircraft, the meteorological conditions and the previously defined optimal air routes.