Killeen Regional Airport, officially designated Robert Gray Army Airfield (KGRK), is a joint-use facility serving both civilian passengers and the U.S. Army's Fort Cavazos (formerly Fort Hood) in central Texas. The airport is located approximately five miles west of Killeen and supports one of the largest military installations in the world. The civilian terminal offers commercial air service primarily through American Airlines, connecting the region to major hub airports. The facility handles both charter and scheduled passenger operations alongside significant military aviation activity. The airport plays a critical role in moving military personnel and equipment associated with Fort Cavazos, which is home to the III Armored Corps and tens of thousands of active-duty soldiers and their families.