Hello, I would like to know if you can buy dollars inside the airport and if they come with a tax, I am from Argentina and here it is very expensive to buy dollars. I await your answer, Thank you

If you can buy but they will quote you according to the market and exchange rate of your country, this will help you a little https://www.a airports.net/a Aeropuerto-internacional-de-miami-cambio-de-divisas/

Always at the airports the change is a little more expensive, but you can buy without any problem

You can buy in MIA price according to official exchange

Thank you very much for your answers and help !!