I have drawn a line on the map of South America from Salvador to Santsa Cruz. Guess what's on it?
Brasilia is! However, I doubt that AR13 really would go there because that means that Elisee doganieri and Bertram van Munster had to go there and they are too smart for that.
Instead, about 200 miles off that line to the south lies Iguassu Falls, one of the most interesting places to visit on the globe(it is on top of my TO SEE list). I believe that would have been an excellent place for AR13 to make a stop.
The flights to get to IGU (the Brazilian side airport) are as follows:
SSA GRU JJ3859 1055 1315 OR JJ3450 0250 0525
GRU IGU JJ3559 1420 1550 JJ3691 0740 0910
The flights to get from Iguassu to Sanata Cruz turn out to be more difficult but doable:
IGR (Argentinian airport) AEP(Buenos Aires Newberry) AR2743 0935 1125, followed by a transfer to the international airport EZE
EZE VVI AR5624 1600 1745