A cartridge for a non-burning type flavor inhaler including a flow path forming body having a shape extending along a predetermined direction to form an aerosol flow path, an outer frame having a shape extending along the predetermined direction to accommodate the flow path forming body, a reservoir that is configured to retain an aerosol source, is positioned on the periphery of the flow path forming body in a cross section orthogonal to the predetermined direction and is positioned in a gap between the flow path forming body and the outer frame and an end cap that closes the gap from the downstream side, wherein an outer edge of the end cap contacts an inner wall surface of the outer frame in the cross section orthogonal to the predetermined direction and wherein an inner edge of the end cap is positioned between the outer edge of the flow path forming body and the inner edge of the flow path forming body in the cross section orthogonal to the predetermined direction.