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

Return flights

26 Aug - 14 Sep	Air France
20 Aug - 10 Sep	Scandinavian Airlines
16 Aug - 12 Sep	Porter Airlines (Canada) Ltd
05 Aug - 12 Aug	Air France
06 Aug - 13 Aug	Air France
14 Aug - 07 Sep	Air France
17 Aug - 01 Sep	WestJet
29 Aug - 07 Sep	Scandinavian Airlines
29 Aug - 21 Sep	WestJet
16 Aug - 30 Aug	Scandinavian Airlines
07 Aug - 10 Aug	Air France

Also check the deals for one-way flights from Toronto 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 Toronto to Helsinki in August from $694

Return flights