The Florida Keys Marathon Airport (MTH)

The Florida Keys Marathon International Airport (MTH) is a premier general aviation facility located in the heart of the Florida Keys, approximately halfway between Key Largo and Key West. As a critical infrastructure asset for Monroe County, the airport serves as a primary gateway for high-end tourism, corporate travel, and private pilots seeking direct access to the middle Keys. A significant milestone for the facility is its permanent 4,200-square-foot U.S. Customs and Border Protection facility, which allows for direct international arrivals from the Caribbean, the Bahamas, and beyond, making it an essential hub for cross-border maritime and aerial travel.

The passenger experience is centered around a world-class general aviation terminal managed by Million Air, a leading Fixed Base Operator (FBO). This modern facility offers a high-quality environment for both travelers and flight crews, featuring a sleek passenger lounge, a dedicated pilot's 'war room' for flight planning, and even a flight simulator for training and recreation. The terminal area also hosts the EAA Museum and various local aviation displays, reflecting the region's rich aeronautical history. Technical facilities are robust, including a 5,008-foot asphalt runway (07/25) capable of accommodating executive jets and regional turboprops, supported by 24-hour self-service 100LL and Jet-A fuel availability.

Beyond its luxury and corporate functions, Marathon International Airport plays a vital role in regional emergency services and environmental monitoring. The airport is a critical base for the U.S. Coast Guard, Florida Fish and Wildlife, and mosquito control operations, as well as a life-saving link for medical evacuations via the Trauma Star helicopter service. Ground transportation is well-organized, with on-site car rental agencies and local taxi services providing a swift commute to the region's world-class resorts and the nearby Seven Mile Bridge. While the airport does not currently host regularly scheduled commercial airline service, it remains a high-efficiency alternative for private charters and a symbol of the Florida Keys' integration into the global aviation network.