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

Return flights

26 Dec - 11 Jan	KLM
04 Dec - 08 Dec	Turkish Airlines
26 Dec - 08 Jan	KLM
28 Dec - 08 Jan	Air France
03 Dec - 07 Dec	Lufthansa
01 Dec - 07 Dec	Lufthansa
26 Dec - 11 Jan	Finnair	direct
26 Dec - 08 Jan	Finnair	direct
08 Dec - 23 Dec	Juneyao Airlines
28 Dec - 08 Jan	Finnair	direct
24 Dec - 06 Jan	Air France
25 Dec - 06 Jan	KLM
25 Dec - 04 Jan	Finnair
25 Dec - 05 Jan	Finnair
23 Dec - 31 Dec	Turkish Airlines
15 Dec - 23 Dec	Thai Airways
07 Dec - 13 Dec	Thai Airways
24 Dec - 31 Dec	Air France
24 Dec - 31 Dec	Finnair	direct
17 Dec - 28 Dec	IndiGo

Also check the deals for one-way flights from Singapore 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 Singapore to Helsinki in December from $638

Return flights