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

Return flights

30 Oct - 09 Nov	Turkish Airlines
14 Oct - 24 Oct	Turkish Airlines
10 Oct - 17 Oct	Turkish Airlines
23 Oct - 28 Oct	Turkish Airlines
08 Oct - 15 Oct	Turkish Airlines
19 Oct - 27 Oct	Turkish Airlines
23 Oct - 30 Oct	Finnair	direct
10 Oct - 17 Oct	Finnair	direct
23 Oct - 28 Oct	Finnair	direct
30 Oct - 09 Nov	Finnair	direct
14 Oct - 18 Oct	Turkish Airlines
20 Oct - 27 Oct	Qatar Airways

Also check the deals for one-way flights from Singapore to Helsinki in October.

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 October from $638

Return flights