Will the customs agent allow me to enter brazil if I fly to brazil using a one way ticket and then will be departing brazil using a one way ticket? Will the customs agent require I have a round trip ticket or will a one way ticket to and from brazil be okey? Thanks.

We have used one way tickets from Jamaica and were fine. I am not sure about Brazil but I don't think it should be a problem.

Please refrain from reposting a question again and again.

They do not require that you have a round trip ticket. To my knowledge, Customs and Immigration never looked to see if I had a round trip ticket. I've traveled there many times over the years. Their concern was my Passport and Visa and what I am bringing with me.

A round trip ticket would probably be cheaper. When you get ready to return, you can go online to your airline and change the departure date and pay a few $$ for the change.