In the title compound, C(15)H(11)FO(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 2-phenyl ring is rotated out of the benzofuran plane, making a dihedral angle of 32.1 (2)°. The crystal structure is stabilized by aromatic π-π inter-actions between the benzene rings of neighbouring mol-ecules [centroid-centroid distance = 3.690 (5) Å]. In addition, the crystal structure exhibits inter-molecular C-H⋯O and C-H⋯F inter-actions.