Originally Posted by
bkkth
Transfer your AmEx miles to a LATAM account and book an award. Easy and simple
Although far from impossible, it's unlikely based on OP's profile that they have an Amex card with LATAM transfer capabilities.
Marriott Bonvoy is a transfer option if you have lots of points to spare, but no US banks transfer to LATAM with the exception of the US Bank (capital B) co-brand credit card.