As of November 23, 2020, Chile will be open to foreign tourists. Here are the rules summed up from El Diario Oficial.
Rules 1 & 2 You must fill out a health form up to 48 hrs before arriving on the Ministry of Health website www.c19.cl
Rule 3 Is only for Chilean citizens and permanent residents
Rule 4 Tourists and nonresident foreigners may only enter with a negative PCR test not more than 72 hrs old attached to the health form from c19.cl
Rule 5 says you must have health insurance with coverage of at least $30.000 USD document attached to your other forms.
Rule 6 says you must submit to Traveler Tracking period of 2 weeks. You will be emailed daily and you must report any symptoms and your location on the c19.cl website. If you have any symptoms you must quarantine