Are there nonstop flights from São Paulo (CGH) to Porto (OPO)?

No. The fastest connection is via Recife, about 10h 41m of total flying time.

What is the fastest connection from São Paulo (CGH) to Porto (OPO)?

via Recife ≈ 10h 41m, via Rio De Janeiro ≈ 10h 47m (estimated flying time, excluding layovers).

Congonhas–Deputado Freitas Nobre Airport (CGH) to Francisco de Sá Carneiro Airport (OPO)・8,208 km

No nonstop flights. The fastest connection is via Recife (REC), about 10h 41m of flying time (layover not included).

None.

2 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.