Rejoining trajectory adjustment method for aircraft

A method for adjusting a flight plan rejoining trajectory of an aircraft, said method being implemented in a flight management system of said aircraft, the method comprising:

• in a first step, adjusting a rejoining trajectory such that the rejoining trajectory comprises a guidance setpoint holding point to be reached situated in an extension of a guidance setpoint, said guidance setpoint not belonging to the flight plan, said guidance setpoint holding point corresponding to a geographic point along the guidance setpoint, said geographic point being defined by a distance, by a time duration, by an altitude variation, or by an altitude to be reached,
• wherein the guidance setpoint no longer being maintained when the setpoint holding point is passed;
• and
• wherein from the guidance setpoint holding point, the rejoining trajectory is computed in such a way that said rejoining trajectory returns to a waypoint of the flight plan as early as possible.