Cheapest return flights from Montreal to Helsinki in September from $688

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

Return flights

30 Sep - 16 Oct Air Transat
01 Sep - 19 Sep Air Transat

Also check the deals for one-way flights from Montreal 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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