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

Return flights

14 Oct - 21 Oct	British Airways
28 Oct - 11 Nov	British Airways
06 Oct - 21 Oct	British Airways
01 Oct - 21 Oct	British Airways
23 Oct - 03 Nov	SWISS
04 Oct - 11 Oct	Air France
20 Oct - 30 Oct	Air Canada
08 Oct - 30 Oct	Iberia
15 Oct - 30 Oct	Air Canada
01 Oct - 10 Oct	Air France
01 Oct - 10 Nov	SWISS
04 Oct - 15 Oct	Air France
12 Oct - 19 Oct	Air France
24 Oct - 01 Nov	British Airways

Also check the deals for one-way flights from Sao Paulo to Athens 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 Athens in October from $827

Return flights