The invention relates to a method for planning the flight of a pilot-piloted aircraft and comprising a tactile head-down display defining a display plane and displaying images representing a three-dimensional surface viewed in perspective through the display plane, and arranged with respect to this display plane according to a display parameter.The method comprises the following steps: acquisition of information relating to a tactile displacement on the display screen; association of the information relating to the tactile displacement with a first set of points located in the display plane; projection of the first set of points on the displayed three-dimensional surface in order to obtain a second set of geographical points located on this three-dimensional surface; and display of images representing the second set.