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

Return flights

19 Aug - 27 Aug	Qatar Airways
25 Aug - 01 Sep	Qatar Airways
19 Aug - 26 Aug	Qatar Airways
26 Aug - 04 Sep	Qatar Airways
18 Aug - 31 Aug	Qatar Airways
19 Aug - 31 Aug	Qatar Airways
17 Aug - 22 Aug	Qatar Airways
05 Aug - 21 Aug	IndiGo
05 Aug - 12 Aug	IndiGo
08 Aug - 16 Aug	IndiGo
19 Aug - 27 Aug	Finnair	direct
19 Aug - 31 Aug	Finnair	direct
30 Aug - 14 Sep	IndiGo
26 Aug - 04 Sep	Finnair	direct
25 Aug - 01 Sep	Finnair	direct
17 Aug - 09 Sep	Scandinavian Airlines

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

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 August from 601€

Return flights