Fort Smith Regional Airport is a public use airport located near the Interstate 540 freeway three nautical miles (6 km) southeast of the central business district of Fort Smith, in Sebastian County, Arkansas, United States. FSM is governed by the Fort Smith Airport Commission as established by the City of Fort Smith, Arkansas. It serves the transportation needs of residents and businesses of western Arkansas and eastern Oklahoma. FSM is currently served by American Eagle, the regional airline affiliate of American Airlines. It has a large population of corporate and general aviation aircraft. A full-service fixed-base operator (FBO), Signature Flight Support, provides service to general aviation, airline, and military operators.

Fort Smith is the third-most populous city in Arkansas, United States, and one of the two county seats of Sebastian County. As of the 2020 census, the population was 89,142. It is the principal city of the Fort Smith, Arkansas–Oklahoma Metropolitan Statistical Area, a region of 298,592 residents that encompasses the Arkansas counties of Crawford, Franklin, and Sebastian, and the Oklahoma counties of LeFlore and Sequoyah.