Online MBA That One Can Take From South America

Hello everyone, i´m in the beginning of a long journey which hopefully ends in me getting my MBA. I am considering an MBA from American or English university. I don´t plan to take it from a top 20 school but I would like the most affordable (without sacrificing too much quality), anyone know any recommendation? I know a few american programs that are affordable but sometimes the online program is not from students from other countries.

Thank you in advance