Oakey Army Aviation Centre — , Australia

OKY is the IATA code for Oakey Army Aviation Centre, a military installation near Oakey, Queensland, Australia. It serves as the home of the Australian Army's Aviation Corps, hosting flight training, helicopter operations, and aviation logistics for the Australian Defence Force. Unlike commercial airports, OKY handles no scheduled passenger traffic; its runways and facilities support rotary-wing training aircraft, maintenance depots, and army aviation schools. The base has operated for decades as a key training hub, situated on the Darling Downs west of Toowoomba. Because it is restricted military infrastructure, public access is limited, and civilian flight bookings cannot be made through this code. OKY remains a defense-only aviation asset rather than a civil transport gateway.