This is the first fire-sale of the post-Covid era with Delta from New York to Sao Paulo.
Brazil is open to tourists but in this Covid-19 environment it's up to your risk tolerance level whether you wish to fly.
Here are two samples over Memorial Day and Presidents Day Weekend... It's an insane price and well worth booking even speculatively. This wont last now, book now... Think later...
Delta Boeing 767 Business Class