Meridian Regional Airport is a joint civil-military public use airport located at Key Field, a joint-use public/military airfield. It is located 3 nautical miles southwest of Meridian, a city in Lauderdale County, Mississippi, United States. The Meridian Airport Authority owns the airport. At 10,003 feet (3,049 m), Key Field is home to the longest public use runway in Mississippi. It is mostly used for general aviation and military traffic, but it is also served by one commercial airline with scheduled passenger service subsidized by the Essential Air Service program.