St Mary's Airport guide

St. Mary's Airport serves the city of St. Marys, a Yup'ik community on the lower Yukon River in western Alaska. The public-use airport sits about 4 miles (6 km) west of the town centre. The village is not linked by road to the state network, so the airfield carries most passenger travel, mail and freight for St. Marys and the surrounding Yukon-Kuskokwim Delta villages.

The airport has two gravel runways. Runway 17/35 measures 6,008 by 150 feet and takes the scheduled commuter and cargo flights. Runway 6/24 is a short crosswind strip of 1,520 by 60 feet. The state owns and operates the field through the Alaska Department of Transportation and Public Facilities.

Scheduled flights run mainly to Bethel and Anchorage, with local hops to Mountain Village, Pilot Station and Marshall. Between April 2024 and March 2025 the Bethel route carried about 1,640 passengers and the Anchorage route about 1,320. A multi-year project that began in 2023 is rehabilitating the runway, taxiway and apron surfaces. Its codes are KSM (IATA), PASM (ICAO) and KSM (FAA).