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

Return flights

05 Mar - 24 Mar	Air Europa
13 Mar - 30 Mar	Air Europa
07 Mar - 28 Mar	Air Europa
13 Mar - 29 Mar	Air Europa
10 Mar - 24 Mar	Air Europa
03 Mar - 11 Mar	Air Europa
05 Mar - 25 Mar	Air Europa
05 Mar - 28 Mar	Air Europa
12 Mar - 31 Mar	Air Europa
09 Mar - 23 Mar	Air Europa
05 Mar - 01 Apr	Air Europa
05 Mar - 25 Apr	Air Europa
07 Mar - 01 Apr	Air Europa
17 Mar - 28 Apr	Air Europa
16 Mar - 23 Apr	Air Europa
23 Mar - 01 Apr	Air Europa
02 Mar - 01 Apr	Air Europa
26 Mar - 26 Apr	Royal Air Maroc
20 Mar - 10 Apr	Royal Air Maroc
31 Mar - 22 Apr	Air Europa

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

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 March from $599

Return flights