Cheapest return flights from Ontario to Oslo in December from 454€

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

Return flights

07 Dec - 14 Dec Delta
04 Dec - 11 Dec British Airways
05 Dec - 12 Dec British Airways
11 Dec - 18 Dec British Airways
24 Dec - 31 Dec British Airways
25 Dec - 01 Jan British Airways
18 Dec - 25 Dec British Airways
21 Dec - 10 Jan British Airways
21 Dec - 31 Dec British Airways
28 Dec - 04 Jan British Airways
21 Dec - 28 Dec British Airways
12 Dec - 26 Dec British Airways

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

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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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