Abstract: A method schedules maintenance on aircraft of a fleet. The method includes: determining the required items of maintenance of an aircraft, including deadlines; if the deadline of the maintenance is within the first period of time: specifying a maintenance station adequately equipped for carrying out the maintenance work in the flight network for carrying out the maintenance work in a specific ground time of the aircraft; if that deadline is in the second period of time: specifying a time span required for carrying out the maintenance within the second period of time, and specifying the routing of all aircraft in the flight network in consideration of the technical data of the aircraft and the technical requirements of the individual flight routes. and carrying the maintenance work at the specified maintenance station in the provided ground time.