The Pilbara is serviced by two main public airports. The Port Hedland International Airport (PHE) and Karratha Airport (KTA).
PHE offers direct flights to a from Singapore; flights to Melbourne, Perth and Sydney; and flights to regional airports in North Western Australia. https://www.porthedlandairport.com.au/.
KTA offers twice-weekly flights to and from Singapore on a seasonal basis (May-October); flights to Darwin, Melbourne, Perth and Sydney; and flights to regional airports in North Western Australia. https://airport.karratha.wa.gov.au/.