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

Return flights

01 Dec - 08 Dec	British Airways
05 Dec - 08 Dec	ITA Airways
04 Dec - 08 Dec	ITA Airways
10 Dec - 17 Dec	British Airways
01 Dec - 29 Dec	ITA Airways
21 Dec - 26 Dec	Turkish Airlines
24 Dec - 07 Jan	Turkish Airlines
19 Dec - 26 Dec	Turkish Airlines
10 Dec - 20 Dec	British Airways
26 Dec - 29 Dec	ITA Airways
26 Dec - 27 Dec	ITA Airways
15 Dec - 05 Jan	Turkish Airlines
18 Dec - 06 Jan	Turkish Airlines
26 Dec - 05 Jan	Turkish Airlines
25 Dec - 02 Jan	Turkish Airlines
28 Dec - 03 Jan	Turkish Airlines
20 Dec - 10 Jan	Aegean Airlines
15 Dec - 02 Jan	British Airways
20 Dec - 02 Jan	British Airways

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

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 December from 657€

Return flights