Method for controlling an aircraft in approach for a landing on a landing runway equipped with an instrument landing system of ILS type (10, 12), an approach axis being associated with said approach and the aircraft being equipped with an ILS receiver, the method comprising the following steps, performed automatically and repetitively, consisting in: - acquiring a first information item originating from the ILS receiver, this first information item corresponding to a deviation between a current position of the aircraft and said approach axis; - determining a guidance setting for the aircraft for a landing on said landing runway, as a function of said first information item; - guiding the aircraft according to said guidance setting, characterized in that it further comprises the following steps consisting in: - acquiring a second information item concerning the speed or the acceleration of the aircraft, independent of said first information item originating from the ILS receiver; - comparing the trend, over a time interval, of the first information item and of the second information item, by performing a comparison: • of the trend of the drift over time of the first information item with the trend of the second information item, when the second information item corresponds to a speed of the aircraft; or • of the trend of the second drift over time of the first information item with the trend of the second information item, when the second information item corresponds to an acceleration of the aircraft, so as to detect any inconsistency between the trend of the first information item and the trend of the second information item; and - when an inconsistency is detected, correcting the first information item as a function of an information item independent of said first information item. - acquiring a first information item originating from the ILS receiver, this first information item corresponding to a deviation between a current position of the aircraft and said approach axis; - determining a guidance setting for the aircraft for a landing on said landing runway, as a function of said first information item; - guiding the aircraft according to said guidance setting, - acquiring a second information item concerning the speed or the acceleration of the aircraft, independent of said first information item originating from the ILS receiver; - comparing the trend, over a time interval, of the first information item and of the second information item, by performing a comparison: • of the trend of the drift over time of the first information item with the trend of the second information item, when the second information item corresponds to a speed of the aircraft; or • of the trend of the second drift over time of the first information item with the trend of the second information item, when the second information item corresponds to an acceleration of the aircraft, so as to detect any inconsistency between the trend of the first information item and the trend of the second information item; and • of the trend of the drift over time of the first information item with the trend of the second information item, when the second information item corresponds to a speed of the aircraft; or • of the trend of the second drift over time of the first information item with the trend of the second information item, when the second information item corresponds to an acceleration of the aircraft, - when an inconsistency is detected, correcting the first information item as a function of an information item independent of said first information item.