Meridian Regional Airport (IATA: MEI, ICAO: KMEI, FAA LID: MEI) is a public use airport located at Key Field, a joint use public/military airfield. It is located 3 nautical miles (5.6 km; 3.5 mi) southwest of Meridian, a city in Lauderdale County, Mississippi, United States. The airport is owned by the Meridian Airport Authority. At 10,003 feet (3,049 m), Key Field is home to the longest public use runway in Mississippi.