Cheapest return flights from Ontario to Helsinki in December from 872€

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

Return flights

30 Dec - 24 Jan Frontier Airlines
27 Dec - 17 Jan British Airways
09 Dec - 17 Dec British Airways
14 Dec - 20 Jan British Airways
13 Dec - 13 Jan British Airways
13 Dec - 15 Jan British Airways
16 Dec - 18 Jan British Airways
14 Dec - 18 Jan British Airways
15 Dec - 18 Jan British Airways
13 Dec - 18 Jan British Airways
12 Dec - 18 Jan British Airways
03 Dec - 27 Dec British Airways
23 Dec - 25 Dec British Airways
24 Dec - 26 Dec British Airways

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

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