AirHint found the following cheapest return flights from Sao Paulo (GRU) to Dublin (DUB) in October 2025 (see full year).

Return flights

02 Oct - 07 Oct	United
24 Oct - 31 Oct	Royal Air Maroc
15 Oct - 22 Oct	United
14 Oct - 22 Oct	United
07 Oct - 08 Nov	TAP
29 Oct - 10 Nov	SWISS
16 Oct - 19 Nov	SWISS
28 Oct - 04 Nov	United
07 Oct - 14 Oct	TAP
02 Oct - 02 Nov	United
19 Oct - 02 Nov	United
20 Oct - 02 Nov	United
17 Oct - 24 Oct	United
01 Oct - 08 Oct	United
02 Oct - 09 Oct	United
01 Oct - 14 Oct	United
13 Oct - 17 Nov	Lufthansa
07 Oct - 27 Nov	British Airways
07 Oct - 21 Oct	British Airways
17 Oct - 08 Nov	British Airways

Also check the deals for one-way flights from Sao Paulo to Dublin 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 Sao Paulo to Dublin in October from 676€

Return flights