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

Return flights

29 Sep - 05 Oct	Air Europa
25 Sep - 18 Oct	Air Europa
25 Sep - 02 Oct	Air Europa
26 Sep - 03 Oct	Air Europa
15 Sep - 24 Sep	Air Europa
26 Sep - 24 Oct	Air Europa
25 Sep - 23 Oct	Air Europa
22 Sep - 23 Oct	Air Europa
11 Sep - 26 Sep	Air Europa
09 Sep - 19 Sep	Air Europa
02 Sep - 16 Sep	Air Europa
01 Sep - 15 Sep	Air Europa
05 Sep - 16 Sep	Air Europa
05 Sep - 21 Sep	Air Europa
01 Sep - 08 Sep	Air Europa
04 Sep - 15 Sep	Air Europa
08 Sep - 18 Sep	Air Europa
11 Sep - 04 Oct	LATAM Airlines Group
13 Sep - 02 Oct	Azul Airlines

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

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 Sao Paulo to Porto in September from 724€

Return flights