Great Falls International Airport is a public/military airport in city limits three miles southwest of central Great Falls in Cascade County, Montana, United States. The airport has also been called Great Falls Municipal Airport. The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport. Federal Aviation Administration records say the airport had 143,811 passenger boardings in calendar year 2008, 146,438 in 2009 and 155,204 in 2010.