In the title compound, C(22)H(17)ClFN(3)O(2)S, the pyrazole ring is approximately planar with a maximum deviation of 0.001 (4) Å and makes dihedral angles of 4.95 (19), 35.78 (18) and 54.73 (18)° with the thia-zole, fluoro-benzene and chloro-benzene rings, respectively. In the crystal, inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains along the a axis.