Ricardo García Posada Airport — El Salvador, Chile

ESR denotes Ricardo García Posada Airport, which serves the town of El Salvador in the Atacama region of northern Chile. The airport primarily supports Chile's copper mining industry, since El Salvador is a company town built around large-scale mining operations run by Codelco. Flights connecting to ESR are typically tied to workforce transport, moving employees and contractors between the mine site and larger cities such as Santiago or Copiapó. Given its remote desert location amid one of the driest environments on Earth, air access is essential infrastructure rather than a tourism convenience, and the airport's operations closely track the rhythms of the mining economy it exists to support.