Shelby Airport (IATA: SBX, ICAO: KSBX, FAA LID: SBX) is a county-owned airport two miles north of Shelby, in Toole County, Montana.

[1] The National Plan of Integrated Airport Systems for 2011–2015 called it a general aviation airport.

[2] Shelby Airport covers 634 acres (257 ha) at an elevation of 3,443 feet (1,049 m).

[1] In the year ending September 9, 2011 the airport had 8,500 aircraft operations, average 23 per day: 95% general aviation, 3% military, and 2% air taxi.

16 aircraft were then based at this airport: 87.5% single-engine and 12.5% multi-engine.