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

Return flights

02 Dec - 21 Jan	LATAM Airlines Group
11 Dec - 21 Jan	LATAM Airlines Group
16 Dec - 20 Jan	Turkish Airlines
16 Dec - 27 Jan	Turkish Airlines
19 Dec - 21 Jan	Turkish Airlines
17 Dec - 21 Jan	Turkish Airlines
18 Dec - 07 Jan	Turkish Airlines
18 Dec - 27 Jan	KLM
25 Dec - 02 Jan	Turkish Airlines

Also check the deals for one-way flights from Sao Paulo to Tallinn 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 Tallinn in December from $882

Return flights