Cheapest return flights from Sao Paulo to Porto in September from $730

Best time to book flights for Sao Paulo (GRU) to Porto (OPO) flights at AirHint

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

Return flights

30 Sep - 13 Oct British Airways
25 Sep - 08 Oct Iberia
26 Sep - 08 Oct Iberia
27 Sep - 08 Oct British Airways
30 Sep - 11 Oct British Airways
25 Sep - 09 Oct Iberia
26 Sep - 09 Oct Iberia
13 Sep - 23 Sep Air Canada
11 Sep - 19 Sep Iberia
06 Sep - 23 Sep British Airways
11 Sep - 20 Sep Iberia
25 Sep - 02 Oct Iberia
16 Sep - 26 Sep British Airways
22 Sep - 06 Oct Iberia
16 Sep - 14 Oct British Airways
06 Sep - 13 Sep British Airways
02 Sep - 18 Sep British Airways
09 Sep - 18 Sep British Airways
10 Sep - 19 Sep Iberia
12 Sep - 20 Sep Iberia

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

Skyscanner

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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