This electronic configuration assist device of a flight of an aircraft includes:



an acquisition module configured to acquire a flight modality, previously selected by a user from a set of predefined flight modalities;
a determination module configured to determine a group of avionics functional component(s) as a function of the acquired modality, each functional component having an elementary score for each predefined flight modality, an overall score being calculated for each possible group of components from the elementary score or scores of the components of the said group for the acquired modality, the determined group being the one having the best overall score among the calculated overall scores;
a display module configured to display information relating to each component of the determined group of avionics functional component(s).