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

Return flights

29 Aug - 05 Sep	Delta
18 Aug - 31 Aug	Delta
18 Aug - 10 Sep	Delta
15 Aug - 02 Sep	Air Europa
18 Aug - 11 Sep	Ryanair
17 Aug - 03 Sep	Iberia
10 Aug - 22 Aug	ITA Airways
10 Aug - 18 Aug	ITA Airways
04 Aug - 30 Sep	Air France
09 Aug - 22 Aug	Iberia
04 Aug - 10 Aug	Turkish Airlines
08 Aug - 09 Aug	Iberia
04 Aug - 04 Aug	ITA Airways

Also check the deals for one-way flights from Athens to Sao Paulo in August.

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 Athens to Sao Paulo in August from $987

Return flights