St. Mary's Airport (Alaska)

St. Mary's Airport (IATA: KSM, ICAO: PASM) is a state-owned, public-use airport located one nautical mile (1.9 km) south of the central business district of St. Mary's, a city in the Kusilvak Census Area of the U.S. state of Alaska. It serves as a regional hub for the Yukon-Kuskokwim Delta region.

The airport handles scheduled passenger flights, primarily operated by regional airlines. It also supports cargo operations and general aviation. The airport is an important link for residents and communities in the surrounding area, providing access to essential services, medical care, and other destinations.

St. Mary's Airport features one asphalt runway designated 18/36, measuring 6,000 by 150 feet (1,829 x 46 m). The airport has a terminal building with passenger waiting areas, ticketing counters, and baggage handling facilities. Air traffic control services are provided to ensure safe operations.

The airport's location in western Alaska makes it subject to challenging weather conditions, including snow, ice, and fog, which can sometimes impact flight schedules.