Ogdensburg International Airport (IATA: OGS, ICAO: KOGS, FAA LID: OGS) is a public airport located in the town of Oswegatchie, 2 miles (3.2 km) southeast of Ogdensburg, in St. Lawrence County, New York. It is owned by the Ogdensburg Bridge & Port Authority, which also owns and operates the Ogdensburg–Prescott International Bridge, Port of Ogdensburg-Marine Terminal Facility, Commerce Park, Port of Waddington, a medium-heavy industrial park and two short line railroads. The Ogdensburg Bridge and Port Authority is a New York State public-benefit corporation. The international airport is just outside the city limits on NY 812. It is used for general aviation and commercial service. Scheduled commercial flights are operated by one airline: Contour Airlines (service is subsidized by the Essential Air Service program).

Federal Aviation Administration records say the airport had 603 passenger boardings (enplanements) in calendar year 2008, 2,329 in 2010, and 10,281 in 2016. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a general aviation airport (the commercial service category requires at least 2,500 enplanements per year).