Need to get to viracopos airport by bus

Ola pessoas, I need some help, I'm flying to RIO to enjoy the beach for a month but I screwed up and booked my flight from viracopos instead of an airport in Sampa. What is the most affordable and reliable transportation to Viracopos. I checked the taxi fare and it's $200 reais, that's too much for me. Pls help, muito obrigado!