Plattsburgh International Airport is a county public-use airport located three nautical miles (6 km) south of the central business district of the city of Plattsburgh, within the Town of Plattsburgh in Clinton County, New York, United States. About 85 percent of the airport's passengers in 2013 were Canadians, mostly from Montreal. The airport is located at the former Plattsburgh Air Force Base and has been owned by Clinton County since 2002. The old base is still being redeveloped by Plattsburgh Airbase Redevelopment Corporation, established in 1995 after the airbase closed. The airport's massive facilities have been upgraded to civilian aviation standards and the county fully transitioned here from Clinton County Airport as of June 2007. Passenger service began on June 18, 2007, and Clinton County Airport has been shut down since then. All airline service in Plattsburgh goes through the airport, which has expanded its terminal building to accommodate more passengers and provide more gates for aircraft. Scheduled passenger service to Washington D.C. at this airport is subsidized by the United States Department of Transportation via the Essential Air Service program. The airport was closed to air traffic from April 13, 2021, to approximately June 22, 2021 due to the middle section of the runway being repaved. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a primary commercial service airport (more than 10,000 enplanements per year). As per Federal Aviation Administration records, the airport had 45,998 passenger boardings (enplanements) in 2008, 73,159 enplanements in 2009, 94,808 in 2010, and 139,698 in 2011. History Plattsburgh Air Force Base closed on September 25, 1995, pursuant to the Defense Base Realignment and Closure Act of 1990 and the recommendations of the Base Realignment and Closure Commission. After the base was decommissioned, Plattsburgh Airbase Redevelopment Corporation was created to manage the property. The Plattsburgh Airbase Redevelopment Corporation split up the base into 165 parcels for redevelopment. The idea of opening a new commercial airport at the site of the former Plattsburgh Air Force Base dated back to at least 2000. At the time, the United States Air Force still owned the runway, which made converting it into a civilian airport more difficult. Plattsburgh Airbase Redevelopment Corporation and Plattsburgh-North Country Chamber of Commerce both favored the opening of a new commercial airport and closing the old Clinton County Airport. The county voted in favor of the