In the mol-ecule of the title compound, C(20)H(13)FN(2)O, the fluoro-phenyl ring is oriented at a dihedral angle of 72.76 (3)° with respect to the fused benzene ring. In the crystal structure, inter-molecular N-H⋯O, C-H⋯O and C-H⋯F inter-actions link the mol-ecules into chains. π-π contacts between the quinoline and benzene rings [centroid-centroid distance = 3.918 (3) Å] may further stabilize the structure. A weak C-H⋯π inter-action is also present. The O atom and two of the CH(2) groups of the quinoline ring system are disordered over two positions. The O atom was refined with occupancies of 0.489 (17) and 0.511 (17), while C and H atoms were refined with occupancies of 0.435 (13) and 0.565 (13).