Though there must be Route Info missing before Detour, as our first sighting was already of teams in metro heading there. Considering how far is the airport, there must have been another clue that had them in a cab into the city.
Interesting, because the Metro Map mentions how to get to the airport using the Metro. I doubt, however, the racers are going to mess with a metro AND bus ride, so end up taking a cab as usual. Oh well.
That's actually info for CGR, not the international airport. Well, not anymore.
They surely arrived from GRU from PTY, which is at least an hour drive to get into the center of the city.
But the new info Peach just sent me, seems to check out, and seems to justify the missing time on 06/12 (the leg probably started the morning of the 12th), and it does link up to why teams were spotted in Metro stations near Paulista heading to Detour spot further more into the center of the city.