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

Return flights

14 Jul - 31 Jul	British Airways
13 Jul - 26 Jul	British Airways
10 Jul - 31 Jul	British Airways
18 Jul - 25 Jul	Iberia
14 Jul - 25 Jul	British Airways
02 Jul - 15 Jul	British Airways
19 Jul - 02 Aug	British Airways
02 Jul - 23 Jul	British Airways
02 Jul - 22 Jul	British Airways
02 Jul - 06 Aug	British Airways
03 Jul - 22 Jul	British Airways
03 Jul - 23 Jul	British Airways
18 Jul - 01 Aug	British Airways

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

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 Ontario to Helsinki in July from $1178

Return flights