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Killeen-Fort Hood Regional Airport Information via FlightLabs API Killeen-Fort Hood Regional Airport Information via FlightLabs API Introduction to Killeen-Fort Hood Regional Airport Killeen-Fort Hood Regional Airport (IATA: GRK, ICAO: KGRK) serves as a vital transportation hub in Central Texas. Located approximately 10 miles southwest of Killeen and adjacent to Fort Hood, one of the largest military installations in the world, this airport plays a significant role in connecting military personnel and civilians to various destinations. The airport's geographical location is strategic, providing access to major cities su...