You are eligible for visa free entry
Up to 90 days
Your passport should ideally have at least six months of validity from the date of arrival, as many airlines enforce this requirement even when immigration rules may be more flexible.
A valid Argentine passport with sufficient validity for the duration of the trip, ideally at least six months from the date of arrival.
Immigration may ask how you plan to leave - a return flight, a bus crossing into Chile, or any confirmed ticket with a real date on it does the job. Whether it is air, land, or sea does not matter. Just have the confirmation somewhere you can get to it quickly.
A hotel reservation, an Airbnb confirmation, or details of a host, including their address and contact information. Officers want to know where you are sleeping when you first arrive - a screenshot or printed booking covers it completely.
Most travellers pass through without being asked, but the option is there for officers to request it. A bank statement or a credit card with available funds answers the question in seconds. Worth having it somewhere accessible just in case.
Check if you need a visa for your next destination