Sturt Island Airport is a small, remote airstrip located on Sturt Island in Papua New Guinea. It serves as a vital access point for communities in an area where river and air transport are the primary means of reaching isolated settlements. The airport operates under the ICAO identifier AYST and has no assigned IATA code, reflecting its status as a minor regional airstrip rather than a commercial hub. It primarily supports light aircraft and missionary or charter aviation services that are common throughout rural Papua New Guinea.