Flight Deal! Right now you can fly from Boston to Rio de Janeiro or Sao Paulo from $405 for most of April or May.
Prices from LAX and DCA begin at $478.
Check the ITA MATRIX for prices on your desired dates.
Most of these deal are valid from now through the end of May before prices start jumping for the Olympics. If you have a Brazilian visa, and are looking for a vacation now may be the time to buy your ticket if you can brave the Zika territory.