I not sure why you would be preferring to do your training in Latin America which is not cheap, But then flying isn't "cheap" anywhere you go. Places that COULD be cheap due to cheap fuel, charge whopping fees for landing, airspace use, and even having people on the apron.
I almost went to South Africa to do my training but didn't because we don't have an Embassy here at my location.
The prices are not that much different with the USA and is much less than most of Europe.
Maybe you should think about doing it there since you don't speak spanish, which is a must in Latin America.