In the title compound, C(16)H(13)BrO(2)S, the O atom and the methyl group of the methyl-sulfinyl substituent lie on opposite sides of the plane of the benzofuran fragment. The 4-bromo-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 39.23 (8)°. The crystal structure exhibits weak non-classical inter-molecular C-H⋯O hydrogen bonds and two inter-molecular C-H⋯π inter-actions.