American has published some bizarrely good fares to Rio de Janeiro out of many cities in the US. The best has to be out of Orlando, where roundtrip fares to Rio de Janeiro are $388 all-in. Availability is wide open through early June. From other parts of the country fares start from about $550 all-in roundtrip, so there’s lots of potential with this fare, especially since there’s no minimum stay required.
The easiest way to search is to use the calendar search function on ITA Matrix and enter your preferred origin, destination, date range, and then enter “aa+” after both the origin and destination to indicate that you want to fly American.
The results page should return availability for almost every day.
I suspect these fares won’t be around for long, so if you’re interested I’d jump on one of these right away. I’ve never been to Rio so booked one of these for myself. While positioning won’t be cheap, it’s still a great value for travel to Rio, especially since I was able to route from Miami to Rio via both Dallas and New York. And the fact that I can upgrade to business class using systemwide upgrades isn’t half bad either!
Now if only I could figure out where to stay in Rio, which must be the worst value hotel market in the world…