This depends on the operator you are renting the car from in Areeiro - Lisboa . Although you can rent a car at age 21, many companies may charge an additional fee for a young driver. You can check this by entering your age before clicking "Search".
Note that in most Rent a Car companies the minimum age is 25, although this age may vary from company to company. If you indicate your age before conducting the search, we include this fee in the total amount to facilitate comparison of offers.