When flying from Flint to Killeen, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
FNT and GRK are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. FNT to GRK refers to a flight route from Flint Bishop Airport to Killeen Fort Hood Regional Airport.