When it comes to stunning beaches, absurd body types, and obtuse Terry Gilliam movies, Brazil's pretty tough to beat. Which is why you'd have to be crazy to pass up the cheap deal currently being offered by American Airlines: round-trip flights to São Paulo from $448.
Yes, São Paulo's one of the worst-designed cities in the world, but still; it's Brazil. And flights to that part of South America usually go for upwards of $1,000. Even with the additional $160 you'll have to pay for a visa, it's still a no-brainer.
Cheap fares are currently available from a number of US cities including Los Angeles, Philadelphia, Miami, Pittsburgh, and St. Louis (sorry, no NYC), and while the price can vary a bit depending on the day you choose, these cheap flights extend from now until early December -- meaning there's gotta be a few days in there that work with your busy schedule.