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

Return flights

30 Oct - 28 Nov	Iberia
13 Oct - 14 Nov	TAP	direct
03 Oct - 10 Oct	Iberia
31 Oct - 07 Nov	Iberia
29 Oct - 11 Nov	TAP
17 Oct - 30 Oct	Iberia
02 Oct - 04 Nov	British Airways
07 Oct - 21 Oct	Ethiopian Airlines
19 Oct - 26 Oct	Iberia
07 Oct - 30 Oct	British Airways
19 Oct - 28 Oct	Iberia
10 Oct - 20 Oct	Iberia
14 Oct - 15 Nov	Air France
07 Oct - 17 Oct	British Airways
10 Oct - 23 Oct	Iberia
08 Oct - 23 Oct	Iberia
06 Oct - 04 Nov	TAP	direct
24 Oct - 01 Nov	TAP
24 Oct - 02 Nov	TAP
31 Oct - 07 Nov	TAP	direct

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 $761

Return flights