A method for assisting landing of an aircraft on a landing runway from a return point to an end point at which the aircraft comes into contact with the landing runway, said method being implemented by a data processing device onboard said aircraft and configured to be connected to: - an altimeter configured to measure the altitude of the aircraft, - a deviation meter positioned at a ground station and configured to measure an azimuth deviation of the aircraft relative to a reference direction connecting said return point and the position of the deviation meter, said method being characterized in that it comprises: - a return navigation assistance phase comprising: - a guidance for the aircraft, based on measurements of the azimuth deviation of the aircraft relative to said reference direction transmitted by the deviation meter, from the return point in the direction of the position of the deviation meter; - a determination of the positioning of the aircraft at a predetermined capture point aligned with the return point and the position of the deviation meter; - a guidance for the aircraft along a predefined path from the capture point to a holding point aligned with the centerline of the landing runway based on altitude data provided by the altimeter and on heading and speed data of the aircraft; - a landing assistance phase comprising a guidance from the holding point to the end point located on the landing runway. - an altimeter configured to measure the altitude of the aircraft, - a deviation meter positioned at a ground station and configured to measure an azimuth deviation of the aircraft relative to a reference direction connecting said return point and the position of the deviation meter, - a return navigation assistance phase comprising: - a guidance for the aircraft, based on measurements of the azimuth deviation of the aircraft relative to said reference direction transmitted by the deviation meter, from the return point in the direction of the position of the deviation meter; - a determination of the positioning of the aircraft at a predetermined capture point aligned with the return point and the position of the deviation meter; - a guidance for the aircraft along a predefined path from the capture point to a holding point aligned with the centerline of the landing runway based on altitude data provided by the altimeter and on heading and speed data of the aircraft; - a landing assistance phase comprising a guidance from the holding point to the end point located on the landing runway. - a guidance for the aircraft, based on measurements of the azimuth deviation of the aircraft relative to said reference direction transmitted by the deviation meter, from the return point in the direction of the position of the deviation meter; - a determination of the positioning of the aircraft at a predetermined capture point aligned with the return point and the position of the deviation meter; - a guidance for the aircraft along a predefined path from the capture point to a holding point aligned with the centerline of the landing runway based on altitude data provided by the altimeter and on heading and speed data of the aircraft; - a landing assistance phase comprising a guidance from the holding point to the end point located on the landing runway.