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

Return flights

01 Dec - 08 Dec	Turkish Airlines
30 Dec - 31 Jan	Lufthansa
04 Dec - 18 Dec	Turkish Airlines
29 Dec - 31 Jan	Lufthansa
06 Dec - 13 Dec	Turkish Airlines
30 Dec - 13 Jan	Lufthansa
29 Dec - 13 Jan	airBaltic
28 Dec - 15 Jan	Aegean Airlines
26 Dec - 13 Jan	Lufthansa
16 Dec - 01 Jan	Lufthansa
01 Dec - 08 Dec	Finnair	direct
16 Dec - 02 Jan	Lufthansa
15 Dec - 02 Jan	Pegasus Airlines
19 Dec - 31 Dec	Aegean Airlines
30 Dec - 13 Jan	Finnair	direct
20 Dec - 28 Dec	Etihad Airways

Also check the deals for one-way flights from Helsinki to Singapore 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 Singapore in December from $660

Return flights