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

Return flights

05 Mar - 17 Mar	Air Europa
18 Mar - 25 Mar	Iberia
09 Mar - 24 Mar	Air Europa
03 Mar - 24 Mar	Air Europa
19 Mar - 22 Mar	TAP
05 Mar - 24 Mar	Air Europa
06 Mar - 30 Mar	Air Europa
03 Mar - 23 Mar	Air Europa
11 Mar - 18 Mar	Air Europa
06 Mar - 26 Mar	Air Europa
04 Mar - 29 Apr	Air Europa
23 Mar - 23 Apr	TAP
26 Mar - 23 Apr	TAP
25 Mar - 22 Apr	TAP
26 Mar - 16 Apr	TAP
16 Mar - 28 Apr	TAP
24 Mar - 21 Apr	TAP
14 Mar - 14 Apr	Air Europa
15 Mar - 15 Apr	Air Europa
21 Mar - 14 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 $586

Return flights