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

Return flights

25 Aug - 29 Sep	IndiGo
27 Aug - 09 Sep	Turkish Airlines
25 Aug - 09 Sep	Turkish Airlines
27 Aug - 09 Sep	Finnair	direct
22 Aug - 07 Sep	Finnair	direct
25 Aug - 09 Sep	Finnair	direct
17 Aug - 24 Aug	IndiGo
25 Aug - 29 Sep	Finnair	direct
07 Aug - 14 Aug	IndiGo
01 Aug - 08 Aug	Pegasus Airlines
11 Aug - 18 Aug	Pegasus Airlines
13 Aug - 20 Aug	Norwegian Air Sweden AOC
26 Aug - 29 Aug	IndiGo
10 Aug - 25 Aug	IndiGo
10 Aug - 17 Aug	Pegasus Airlines
08 Aug - 15 Aug	Pegasus Airlines
05 Aug - 14 Aug	IndiGo
16 Aug - 06 Sep	Ryanair

Also check the deals for one-way flights from Helsinki to Singapore 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 Helsinki to Singapore in August from 542€

Return flights