AirHint found the following cheapest return flights from Porto (OPO) to Sao Paulo (GRU) in October 2025 (see full year).

Return flights

26 Oct - 03 Nov	Air Europa
04 Oct - 19 Oct	Air Europa
08 Oct - 28 Oct	Air Europa
06 Oct - 21 Oct	Air Europa
13 Oct - 25 Oct	Air Europa
13 Oct - 26 Oct	Air Europa
27 Oct - 04 Nov	Air Europa
11 Oct - 25 Oct	Air Europa
11 Oct - 26 Oct	Air Europa
11 Oct - 21 Oct	Air Europa
11 Oct - 23 Oct	Air Europa
29 Oct - 27 Nov	Air Europa
23 Oct - 09 Nov	TAP
23 Oct - 11 Nov	TAP
08 Oct - 26 Oct	Air Europa
31 Oct - 24 Nov	Air Europa
23 Oct - 10 Nov	Air Europa
24 Oct - 11 Nov	Air Europa
22 Oct - 10 Nov	Air Europa
22 Oct - 09 Nov	Air Europa

Also check the deals for one-way flights from Porto to Sao Paulo in October.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Porto to Sao Paulo in October from 597€

Return flights