Marianna Municipal Airport is an airport in Marianna, Jackson County, Florida, 5 miles northeast of Downtown Marianna. The Federal Aviation Administration 's National Plan of Integrated Airport Systems for 2009–2013 categorized it as a general aviation airport. It was formerly Graham Air Base. Many U.S. airports use the same three-letter location identifier for the FAA and IATA, but this airport is MAI to the FAA and has no IATA code..