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

Return flights

02 Mar - 16 Mar	TAP
15 Mar - 21 Mar	TAP
16 Mar - 22 Mar	TAP
01 Mar - 08 Mar	TAP
02 Mar - 12 Mar	TAP
04 Mar - 12 Mar	TAP
02 Mar - 15 Mar	TAP
16 Mar - 30 Mar	TAP
14 Mar - 21 Mar	TAP
02 Mar - 24 Mar	TAP
09 Mar - 15 Apr	Air Europa
12 Mar - 18 Apr	Air Europa
19 Mar - 02 Apr	Iberia
30 Mar - 07 Apr	Iberia
29 Mar - 06 Apr	TAP
28 Mar - 04 Apr	TAP
05 Mar - 02 Apr	TAP
12 Mar - 18 Apr	TAP	direct

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 $631

Return flights