Cheapest return flights from Toronto to Helsinki in September from $651

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

Return flights

22 Sep - 29 Sep Scandinavian Airlines
21 Sep - 28 Sep Scandinavian Airlines
22 Sep - 30 Sep Air France
22 Sep - 01 Oct Air France
19 Sep - 26 Sep Scandinavian Airlines
21 Sep - 11 Oct WestJet
20 Sep - 04 Oct Air Transat
20 Sep - 26 Sep Air Transat
18 Sep - 21 Sep Azores Airlines

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

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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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