Cheapest return flights from Sao Paulo to Porto in September from $781

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

22 Sep - 31 Oct Air Europa
25 Sep - 13 Oct Air Europa
27 Sep - 11 Oct Air Europa
25 Sep - 14 Oct Air Europa
25 Sep - 30 Oct Air Europa
06 Sep - 16 Sep British Airways
25 Sep - 30 Sep Air Europa
23 Sep - 28 Oct Air Europa
30 Sep - 28 Oct Air Europa
30 Sep - 31 Oct Iberia
26 Sep - 10 Oct Royal Air Maroc
26 Sep - 02 Oct Royal Air Maroc
03 Sep - 08 Sep Ethiopian Airlines
06 Sep - 25 Sep British Airways
03 Sep - 18 Sep Ethiopian Airlines
07 Sep - 17 Sep British Airways
09 Sep - 19 Sep British Airways
14 Sep - 26 Sep TAP
06 Sep - 13 Sep British Airways
18 Sep - 30 Sep Air Europa

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

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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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