SKYTEAM Germany - GRU 1660 Euro
TXL - GRU (via ATL) - 1689 Euro (
https://www.google.ca/flights/#searc...TXL1DL422;sc=b)
DUS - GRU (via ATL) - 1660 Euro (
https://www.google.com/flights/#sear...LDUS1DL90;sc=b)
You can book the fares as multi segment with a stopover for a few days