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

Return flights

16 Dec - 30 Dec	KLM
08 Dec - 28 Jan	Iberia
16 Dec - 28 Dec	Turkish Airlines
16 Dec - 29 Dec	Turkish Airlines
19 Dec - 23 Dec	Turkish Airlines
17 Dec - 29 Dec	Qatar Airways
25 Dec - 06 Jan	Turkish Airlines
20 Dec - 03 Jan	Turkish Airlines
26 Dec - 15 Jan	Lufthansa
26 Dec - 04 Jan	Turkish Airlines
26 Dec - 07 Jan	Turkish Airlines
26 Dec - 24 Jan	Lufthansa
24 Dec - 03 Jan	Avianca
29 Dec - 12 Jan	Iberia
21 Dec - 05 Jan	Iberia

Also check the deals for one-way flights from Sao Paulo to Athens 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 Sao Paulo to Athens in December from $1100

Return flights