AirHint found the following cheapest return flights from Rio De Janeiro (GIG) to Porto (OPO) in September 2026 (see full year).

Return flights

04 Sep - 17 Sep	SWISS
25 Sep - 19 Oct	SWISS
11 Sep - 01 Oct	SWISS
01 Sep - 14 Sep	SWISS
14 Sep - 25 Sep	British Airways
23 Sep - 19 Oct	SWISS
11 Sep - 02 Oct	Iberia
08 Sep - 15 Sep	SWISS
21 Sep - 05 Oct	British Airways
07 Sep - 18 Sep	Iberia
07 Sep - 11 Oct	Iberia
30 Sep - 11 Oct	SWISS
01 Sep - 26 Sep	SWISS
06 Sep - 18 Sep	SWISS
16 Sep - 05 Oct	SWISS
09 Sep - 30 Sep	Iberia
03 Sep - 10 Sep	TAP

Also check the deals for one-way flights from Rio De Janeiro 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 Rio De Janeiro to Porto in September from 654€

Return flights