Lid-spout assembly for a package having a designated pour opening and being filled with a pourable product; the lid-spout assembly comprises at least: - a collar carrying a pouring outlet and having an outer surface; - a coupling ring arranged around a portion of the collar; - a lid configured to selectively close and open the pouring outlet; and wherein the collar comprises a first annular interaction ridge protruding from the outer surface of the collar; wherein the coupling ring comprises an inner surface facing the outer surface and having at least one flap connected to and protruding away from the inner surface; wherein the flap comprises at least one engagement surface abutting and/or designed to abut against an abutment surface of the first annular interaction ridge; characterized in that it further comprises a connecting element connecting the lid and the coupling ring with one another, wherein the lid is angularly moveable around a hinge axis defined by the connecting element so as to control the lid between a closed configuration and an open configuration, wherein the lid is in a first angular position and in a second angular position with respect to the hinge axis when being controlled in respectively the closed configuration and the open configuration, and in that the collar also comprises a second annular interaction ridge protruding from the outer surface of the collar and being axially displaced from the first annular interaction ridge; wherein the flap further comprises at least one contact surface designed to interact and/or interacting with a guiding surface of the second annular interaction ridge so as to direct the engagement surface towards and/or against the abutment surface. the lid-spout assembly comprises at least: - a collar carrying a pouring outlet and having an outer surface; - a coupling ring arranged around a portion of the collar; - a lid configured to selectively close and open the pouring outlet; and - a collar carrying a pouring outlet and having an outer surface; - a coupling ring arranged around a portion of the collar; - a lid configured to selectively close and open the pouring outlet; and wherein the collar comprises a first annular interaction ridge protruding from the outer surface of the collar; wherein the coupling ring comprises an inner surface facing the outer surface and having at least one flap connected to and protruding away from the inner surface; wherein the flap comprises at least one engagement surface abutting and/or designed to abut against an abutment surface of the first annular interaction ridge; characterized in that it further comprises a connecting element connecting the lid and the coupling ring with one another, wherein the lid is angularly moveable around a hinge axis defined by the connecting element so as to control the lid between a closed configuration and an open configuration, wherein the lid is in a first angular position and in a second angular position with respect to the hinge axis when being controlled in respectively the closed configuration and the open configuration, and in that the collar also comprises a second annular interaction ridge protruding from the outer surface of the collar and being axially displaced from the first annular interaction ridge; wherein the flap further comprises at least one contact surface designed to interact and/or interacting with a guiding surface of the second annular interaction ridge so as to direct the engagement surface towards and/or against the abutment surface.