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

Return flights

02 Dec - 07 Dec	Finnair
09 Dec - 16 Dec	British Airways
15 Dec - 14 Jan	Finnair
15 Dec - 22 Dec	Finnair
22 Dec - 17 Jan	Finnair
16 Dec - 23 Dec	Finnair
09 Dec - 20 Dec	Finnair
16 Dec - 13 Jan	Finnair
16 Dec - 12 Jan	Finnair
15 Dec - 12 Jan	Finnair
24 Dec - 17 Jan	Finnair
23 Dec - 16 Jan	Finnair
09 Dec - 01 Jan	Finnair
24 Dec - 16 Jan	Air France
22 Dec - 16 Jan	Finnair
21 Dec - 28 Dec	Finnair
30 Dec - 31 Dec	Finnair

Also check the deals for one-way flights from Helsinki 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 Helsinki to Sao Paulo in December from $927

Return flights