Cheapest return flights from Ontario to Helsinki in October from $798

Best time to book flights for Ontario (ONT) to Helsinki (HEL) flights at AirHint

AirHint found the following cheapest return flights from Ontario (ONT) to Helsinki (HEL) in October 2025 (see full year).

Return flights

14 Oct - 21 Oct Iberia
12 Oct - 19 Oct British Airways
06 Oct - 19 Oct British Airways
06 Oct - 13 Oct British Airways
07 Oct - 13 Oct British Airways
06 Oct - 12 Oct British Airways
08 Oct - 13 Oct British Airways
13 Oct - 19 Oct British Airways

Also check the deals for one-way flights from Ontario to Helsinki in October.

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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