In the title compound, C(18)H(15)ClFN(3)O(4), the dihedral angle between the substituted pyridine ring and the oxadiazo-line ring is 9.73 (19)° and the acyl group is coplanar with the oxadiazo-line ring [O-C-N-C torsion angle = -2.1 (3)°]. Furthermore, the substituted benzene ring is almost orthogonal with the oxadiazo-line ring, the dihedral angle between them being 87.56 (18)°.