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

Return flights

24 Sep - 30 Sep	Etihad Airways
21 Sep - 26 Sep	IndiGo
10 Sep - 23 Sep	Etihad Airways
14 Sep - 29 Sep	Air India
28 Sep - 05 Oct	Turkish Airlines
22 Sep - 05 Oct	IndiGo
26 Sep - 05 Oct	Turkish Airlines
05 Sep - 08 Sep	Turkish Airlines
26 Sep - 12 Oct	Qatar Airways
02 Sep - 23 Sep	IndiGo
27 Sep - 05 Oct	Etihad Airways
27 Sep - 04 Oct	Etihad Airways
22 Sep - 05 Oct	Finnair	direct
14 Sep - 29 Sep	Finnair	direct
24 Sep - 30 Sep	Finnair	direct
10 Sep - 23 Sep	Finnair	direct
02 Sep - 23 Sep	Finnair	direct
28 Sep - 05 Oct	Finnair	direct
27 Sep - 05 Oct	Finnair	direct
26 Sep - 05 Oct	Finnair	direct

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

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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki

Cheapest return flights from Singapore to Helsinki in September from 607€

Return flights