DuBois Regional Airport (IATA: DUJ, ICAO: KDUJ, FAA LID: DUJ), formerly DuBois–Jefferson County Airport, is in Jefferson County, Pennsylvania, eight miles northwest of DuBois, a city in Clearfield County. The airport is in Washington Township. It is owned and operated by the Clearfield-Jefferson Counties Regional Airport Authority, based at the airport. It has scheduled service on one airline, Southern Airways Express, subsidized by the Essential Air Service program.