The Chilean Government has a reciprocal agreement with Australia so for Australian passport holders, you’ll need to pay US$117 on arrival. This must be paid in cash on arrival into Santiago airport, and the one-time fee is good for the
life of a travelers’ passport. You may pay this fee at the airport counter (to the left of Customs) via credit card or US$ cash. There is no fee charged if you’re arriving into Chile by any other means, and holders of other passports aren’t charged anything, in accordance with their agreements. You’re issued with your immigration arrivals receipt on arrival. It’s really important to keep this safe as you’ll need it when you depart Chile. Failure to submit this card upon departure may result in delays until a replacement is obtained.