Pittsburgh-Butler Regional Airport, also known as the Butler County Airport or K. W. Scholter Field, is a public airport 5 miles (8 km) southwest of the central business district of Butler, the county seat of Butler County, Pennsylvania, United States. The airport serves the northern suburbs of the Pittsburgh metropolitan area. It is owned by the Butler County Airport Authority.

Butler is a city and the county seat of Butler County, Pennsylvania, United States. It is located 35 miles (56 km) north of Pittsburgh and is part of the Greater Pittsburgh region. As of the 2020 census, the city population was 13,502.