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

Return flights

29 Oct - 25 Nov	Lufthansa
29 Oct - 19 Nov	Lufthansa
24 Oct - 30 Nov	Air France
23 Oct - 30 Nov	GOL Linhas Aéreas
21 Oct - 18 Nov	KLM
16 Oct - 20 Nov	GOL Linhas Aéreas
17 Oct - 20 Nov	GOL Linhas Aéreas
20 Oct - 16 Nov	GOL Linhas Aéreas
21 Oct - 16 Nov	GOL Linhas Aéreas
20 Oct - 13 Nov	TAP
24 Oct - 31 Oct	TAP
24 Oct - 31 Oct	TAP	direct
15 Oct - 23 Oct	Iberia
19 Oct - 26 Oct	Iberia
17 Oct - 24 Oct	Iberia
23 Oct - 29 Oct	Azul Airlines
17 Oct - 29 Oct	Air Europa
17 Oct - 31 Oct	GOL Linhas Aéreas
26 Oct - 31 Oct	ITA Airways
20 Oct - 28 Oct	British Airways

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 636€

Return flights