AirHint found the following cheapest return flights from Rio De Janeiro (GIG) to Porto (OPO) in October 2025 (see full year).

Return flights

31 Oct - 28 Nov	GOL Linhas Aéreas
17 Oct - 30 Nov	Iberia
29 Oct - 25 Nov	TAP
29 Oct - 08 Nov	TAP
21 Oct - 18 Nov	TAP
27 Oct - 16 Nov	TAP
19 Oct - 16 Nov	TAP
20 Oct - 18 Nov	TAP
31 Oct - 14 Nov	GOL Linhas Aéreas
24 Oct - 30 Nov	TAP
13 Oct - 28 Oct	LATAM Airlines Group
20 Oct - 30 Oct	GOL Linhas Aéreas
20 Oct - 28 Oct	GOL Linhas Aéreas
12 Oct - 27 Oct	GOL Linhas Aéreas
07 Oct - 23 Oct	GOL Linhas Aéreas
21 Oct - 30 Oct	GOL Linhas Aéreas
12 Oct - 30 Oct	GOL Linhas Aéreas
14 Oct - 29 Oct	GOL Linhas Aéreas
15 Oct - 23 Oct	GOL Linhas Aéreas
17 Oct - 24 Oct	TAP

Also check the deals for one-way flights from Rio De Janeiro to Porto in October.

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 October from $748

Return flights