AirHint found the following cheapest return flights from Porto (OPO) to Sao Paulo (GRU) in May 2026 (see full year).

Return flights

05 May - 28 May	Air Europa
06 May - 21 May	Air Europa
05 May - 26 May	Air Europa
23 May - 14 Jun	Royal Air Maroc
13 May - 18 May	Air Europa
05 May - 21 May	Air Europa
01 May - 18 Jun	Iberia
01 May - 27 May	Iberia
23 May - 13 Jun	Iberia
15 May - 11 Jun	Iberia
27 May - 13 Jun	Air Europa
12 May - 26 May	Air Europa
19 May - 26 May	Air Europa
18 May - 26 May	Air Europa
05 May - 06 Jun	Air Europa
27 May - 28 Jun	Air Europa
20 May - 25 May	Air Europa
30 May - 14 Jun	Royal Air Maroc
28 May - 14 Jun	Royal Air Maroc
21 May - 11 Jun	Air Europa

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

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 May from $616

Return flights