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

Return flights

16 Nov - 23 Nov	British Airways
13 Nov - 06 Dec	British Airways
13 Nov - 20 Nov	British Airways
17 Nov - 24 Nov	British Airways
26 Nov - 03 Dec	British Airways
14 Nov - 06 Dec	British Airways
19 Nov - 26 Nov	British Airways
09 Nov - 16 Nov	British Airways
17 Nov - 13 Dec	British Airways
15 Nov - 22 Nov	British Airways
24 Nov - 01 Dec	British Airways
21 Nov - 28 Nov	British Airways
23 Nov - 13 Dec	British Airways
30 Nov - 20 Dec	British Airways
23 Nov - 30 Nov	British Airways
22 Nov - 29 Nov	British Airways

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

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 Oslo in November from $625

Return flights