I was planning another trip - this time to South America and looked at the air pass options there. Most are not that great value. But, there's one that seems to be very good value. It's called the Mercosur air pass and allows you to travel in Brazil, Argentina, Paraguay, Uruguay and Chile. It's measured by distance and allows 2 flights per country with one int'l. flight between the various countries being required. Max. amount of countries to be visited is four. Most major airlines in the region participate: Varig (for Star Alliance fliers), Vasp, Lan Chile, Aerolineas Argentinas (all either oneworld or other AA partners) and Transbrazil - to name a few. I'll post the approximate prices later tonight.