Airports in St. Lawrence County, New York: Private, Municipal, Regional(All)

Airports in St. Lawrence County, New York

St. Lawrence County spans 2,822 square miles across the northern tip of New York State, making it the largest county in the state and one of the largest east of the Mississippi River. Despite its rural character and remote setting along the St. Lawrence River and the Adirondack foothills, the county is served by three public-use airports that connect residents and businesses to regional and national destinations. Whether you need commercial airline service, general aviation facilities, or air freight capabilities, St. Lawrence County's airport infrastructure provides meaningful access to the broader transportation network.

Ogdensburg International Airport (OGS)

Ogdensburg International Airport (IATA: OGS, ICAO: KOGS) is the primary commercial service airport serving St. Lawrence County, located approximately 2 miles southeast of Ogdensburg in the Town of Oswegatchie. The airport sits along the St. Lawrence River near the US–Canada border crossing and serves the county's western population centers including Ogdensburg, which had a 2020 census population of 10,064.

The airport features a single asphalt runway (Runway 9/27) measuring 6,400 by 150 feet, extended to its current length in 2016 to accommodate improved commercial operations. Ogdensburg International is a participant in the federal Essential Air Service (EAS) program, which ensures scheduled commercial airline access to small and remote communities. Breeze Airways currently provides EAS service from OGS, operating daily nonstop flights to Washington Dulles International Airport (IAD) and Raleigh-Durham International Airport (RDU), with seasonal service to Orlando. These connections give St. Lawrence County residents access to major East Coast hubs without needing to drive hours to larger upstate New York airports.

Beyond scheduled airline service, Ogdensburg International handles transient general aviation aircraft, charter flights, military traffic associated with nearby Fort Drum operations, and medical helicopter flights serving the region's healthcare network. The airport operates its own Fixed Base Operator (FBO) services, providing fuel, hangaring, and support for visiting and based aircraft.

Massena International Airport (MSS) — Richards Field

Massena International Airport (IATA: MSS, ICAO: KMSS), known locally as Richards Field, is located approximately 2 nautical miles east of the village of Massena in the northeastern part of St. Lawrence County. Massena sits at the confluence of the St. Lawrence and Grasse Rivers and serves as a gateway community along the US–Canada border, with significant river commerce and industrial heritage tied to the St. Lawrence Seaway and Alcoa aluminum operations.

Richards Field features two asphalt runways: the primary Runway 5/23 at 5,600 by 100 feet, and the crosswind Runway 9/27 at 4,000 by 100 feet. The airport provides scheduled commercial service through Boutique Air, which operates nonstop daily flights to Boston Logan International Airport (BOS). Boutique Air holds codeshare agreements with both United Airlines and American Airlines, meaning passengers departing Massena can connect seamlessly to national and international routes through Boston. The airport handles approximately 51 flights per month — roughly 14 per week — under its EAS-supported service structure.

Massena International's geographic position near the Canadian border and the Seaway International Bridge makes it a strategically important facility for cross-border business travelers and regional commerce. Its proximity to Massena's industrial base and to communities on both sides of the border gives it a distinct role in the county's air transportation picture.

Potsdam Municipal Airport (PTD) — Damon Field

Potsdam Municipal Airport (IATA: PTD, ICAO: KPTD), officially named Damon Field, serves the central St. Lawrence County communities of Potsdam and Canton — the county seat. Located approximately 2 nautical miles east of Potsdam village at an elevation of 474 feet above mean sea level, the airport occupies 168 acres and operates a single asphalt runway (Runway 6/24) measuring 3,705 by 60 feet.

Damon Field is a general aviation airport recording approximately 6,000 aircraft operations annually — an average of 16 per day — with 92 percent of traffic being general aviation. The airport supports a diverse range of operations: Air Methods operates air ambulance services out of Damon Field, providing critical medical transport for the region's hospital network. LTI Transportation provides charter and on-demand air services, and UPS operates daily airfreight flights through the facility, ensuring reliable package delivery to the county's colleges and businesses. Potsdam Aero offers flight training and flight school operations, with training partnerships extending to Ogdensburg International Airport.

The airport's location near Clarkson University, SUNY Potsdam, and SUNY Canton — institutions that together enroll thousands of students — gives Damon Field consistent demand for charter, freight, and training operations throughout the academic year.

Regional Connectivity and Nearby Major Airports

St. Lawrence County residents also have access to larger regional airports for expanded airline options. Ottawa Macdonald-Cartier International Airport (YOW) in Ontario, Canada, lies approximately 56 miles from Canton and offers Air Canada, Porter Airlines, and other carriers with connections throughout North America and internationally. Montreal-Trudeau International Airport (YUL) is about 92 miles away and provides the widest range of international destinations. Burlington International Airport (BTV) in Vermont is roughly 100 miles to the east, while Syracuse Hancock International Airport (SYR) — about 126 miles south via I-81 — offers the largest selection of domestic carriers within New York State.

Frequently Asked Questions: Airports in St. Lawrence County, NY