Chile is not the cheapest place to visit in South America. But the kind of trip you have in mind will determine your budget. Typically, most tourists like to hike in the Torres del Paine and explore the desert landscape of Atacama during a 10 to 15-day trip. It is possible to do a trekking-heavy trip on a budget of USD 90 to 100 per day per person. Basic accommodation and food costs are higher in Chile than in other South American countries. So be ready to spend at least USD 75 daily for a non-luxurious trip.