Beaver Island Airport (ICAO: KSJX, FAA LID: SJX) is a public use airport located on Beaver Island in Charlevoix County, Michigan, United States. It is owned by St. James Township and Peaine Township. It is included in the Federal Aviation Administration (FAA) National Plan of Integrated Airport Systems for 2017–2021, in which it is categorized as a local general aviation facility. The airport received a $20,000 federal grant in 2020 as part of the CARES Act. The grant came in response to the COVID-19 pandemic to help the airport continue operations and upgrade facilities.