Cheapest return flights from Ontario to Oslo in December from $873

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

Return flights

05 Dec - 12 Dec British Airways
31 Dec - 14 Jan British Airways
01 Dec - 08 Dec British Airways
02 Dec - 09 Dec British Airways
24 Dec - 31 Dec British Airways
25 Dec - 01 Jan British Airways
22 Dec - 17 Jan British Airways
18 Dec - 25 Dec British Airways
07 Dec - 14 Dec British Airways
18 Dec - 29 Dec British Airways
27 Dec - 10 Jan Iberia
19 Dec - 30 Dec British Airways
18 Dec - 28 Dec British Airways
19 Dec - 29 Dec British Airways
28 Dec - 04 Jan 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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