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

Return flights

03 Dec - 15 Dec	Finnair
11 Dec - 18 Jan	Finnair
10 Dec - 23 Dec	Finnair
16 Dec - 30 Dec	Finnair
10 Dec - 29 Dec	Finnair
10 Dec - 30 Dec	Finnair
10 Dec - 26 Dec	Finnair
24 Dec - 08 Jan	Finnair
17 Dec - 01 Jan	Finnair
22 Dec - 05 Jan	Finnair
23 Dec - 30 Dec	Finnair
22 Dec - 07 Jan	Finnair
01 Dec - 13 Dec	Finnair
21 Dec - 05 Jan	Finnair
23 Dec - 28 Dec	Finnair
26 Dec - 06 Jan	Finnair
26 Dec - 04 Jan	Turkish Airlines
25 Dec - 30 Dec	Finnair
20 Dec - 04 Jan	LATAM Airlines Group
21 Dec - 02 Jan	Finnair

Also check the deals for one-way flights from Sao Paulo to Helsinki 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 Helsinki in December from 745€

Return flights