duj

duj is best known as the IATA airport code for DuBois Regional Airport, a public-use airport located in Clearfield County, Pennsylvania, United States. The airport serves the Dubois area and surrounding communities, handling general aviation as well as limited scheduled and charter air service when available. The IATA code DUJ is used in airline timetables, ticketing, and baggage routing to designate flights to and from the facility. The airport’s ICAO designation is KDUJ, and its FAA location identifier is DUJ.

DuBois Regional Airport was formerly known as DuBois Municipal Airport before adopting its current name. It functions as a small regional gateway, supporting flight training, corporate aviation, and passenger travel in the region through its facilities and services for aviation operations.

In other contexts, duj does not have a widely recognized meaning beyond its use as an airport code. As a three-letter string, it may appear as an acronym or abbreviation in unrelated domains, but such usages are not standardized. The code DUJ remains most prominently associated with DuBois Regional Airport in Pennsylvania. See also list of airports in Pennsylvania.