Cheapest return flights from Sydney to Helsinki in September from $1264

Best time to book flights for Sydney (SYD) to Helsinki (HEL) flights at AirHint

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

Return flights

11 Sep - 02 Oct Finnair
01 Sep - 12 Sep Finnair
05 Sep - 12 Sep British Airways
13 Sep - 26 Sep Finnair
14 Sep - 09 Oct Finnair
18 Sep - 09 Oct Finnair
26 Sep - 18 Oct Qatar Airways
04 Sep - 19 Sep Jetstar
24 Sep - 15 Oct Singapore Airlines
15 Sep - 13 Oct Qantas

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

Skyscanner

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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