Cheapest return flights from Ontario to Helsinki in December from $1471

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

Return flights

07 Dec - 16 Dec British Airways
28 Dec - 08 Jan British Airways
24 Dec - 02 Jan Iberia
23 Dec - 30 Dec Iberia
23 Dec - 01 Jan Iberia
24 Dec - 03 Jan British Airways
25 Dec - 04 Jan British Airways
23 Dec - 04 Jan Iberia
18 Dec - 04 Jan British Airways

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

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