El Sobrante Airport is a small general aviation airfield located near Petorca, a city in the Valparaíso Region of central Chile. Designated with the ICAO code SCSP, it serves local and private aviation needs in the Petorca Province rather than scheduled commercial passenger services. The airport operates in a semi-arid valley environment typical of the region and primarily supports agricultural, private, and light aircraft operations. It does not hold an IATA code, reflecting its status as a non-commercial facility.