Para chegar a Sao Carlos a partir do Aeroporto de Sao Paulo em Guarulhos:

Take the Airport Service Shuttle (price around R$ 45. One  American Dollar is about R$3,40) to the Sao Paulo Bus Station, or RODOVARIA. When you get there, walking straight ahead when you leave the scalator, the are the booths of VIAÇÃO COMETA (first one, a big one!) and just after EMPRESA CRUZ. There are busses about each 1/2 hour to Sao Carlos, trip lasting 3.5 hours, and costing nearly R$70,00. The bus stops in the middle of the way for snack and refreshments. So take notice of your bus color and number and do not miss it! Stop lasts 10-15min.

 

Para chegar a Sao Carlos a partir do Aeroporto Viracopos, peque um onibus para a RODOVIÁRIA de Campinas e de lá outro onibus para São Carlos.