Orlando International Airport (MCO), located just 6 miles southeast of Downtown Orlando, Florida, is the state's busiest airport and ranks as the seventh busiest in the United States. In 2021, it recorded 19.6 million enplanements. Originally known as McCoy Air Force Base, the airport's code "MCO" reflects its military heritage. Today, MCO serves as a key hub for Silver Airways, and hosts operating bases for Avelo Airlines, JetBlue, Southwest Airlines, and Spirit Airlines, with Frontier Airlines using it as a focus city. As a major international gateway, MCO offers over 850 daily flights through 44 airlines to 135 destinations worldwide. Covering 11,605 acres, it's among the largest commercial airports by land area in the U.S. and includes a maintenance base for United Airlines.