Missoula Montana Airport (IATA: MSO, ICAO: KMSO, FAA LID: MSO) is located in Missoula, in Missoula County, Montana. It is owned by the Missoula County Airport Authority.

The National Plan of Integrated Airport Systems for 2011–2015 categorized it as a primary commercial service airport (more than 10,000 enplanements per year). Federal Aviation Administration records say the airport had 288,071 passenger boardings (enplanements) in calendar year 2008, 281,428 in 2009 and 289,875 in 2010.

Several expansion projects have been completed in recent years. A 101-foot control tower was completed in September 2012. An expansion of the old terminal building, with a new security screening area, was completed in 2007. In 2022, construction finished on the new terminal.

In September 2021, the airport changed its name from Missoula International Airport to Missoula Montana Airport.