Leinster Airport is a small regional airport located in Leinster, a remote mining town in the Goldfields-Esperance region of Western Australia. It serves primarily as a fly-in fly-out (FIFO) hub for workers at the nearby Leinster Nickel Operations, one of Australia's significant nickel mining facilities operated by BHP. The airport handles limited scheduled and charter passenger services, catering mainly to mining industry personnel and the small permanent local population. Its remote location in the Western Australian outback means it sees relatively modest traffic volumes compared to major regional airports.