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

Return flights

03 Dec - 10 Dec	LATAM Airlines Group
02 Dec - 18 Jan	Iberia
01 Dec - 10 Dec	Iberia
18 Dec - 23 Jan	British Airways
19 Dec - 25 Dec	Turkish Airlines
19 Dec - 26 Dec	Turkish Airlines
29 Dec - 26 Jan	British Airways
25 Dec - 08 Jan	Turkish Airlines
29 Dec - 05 Jan	Turkish Airlines
29 Dec - 10 Jan	Turkish Airlines
23 Dec - 03 Jan	Turkish Airlines
28 Dec - 04 Jan	Turkish Airlines
27 Dec - 02 Jan	Turkish Airlines
29 Dec - 07 Jan	British Airways
13 Dec - 22 Dec	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 768€

Return flights