Cheapest return flights from Ontario to Oslo in October from $703

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

Return flights

31 Oct - 07 Nov British Airways
30 Oct - 22 Nov British Airways
18 Oct - 01 Nov British Airways
20 Oct - 15 Nov British Airways
05 Oct - 02 Nov British Airways
26 Oct - 11 Nov Iberia
02 Oct - 06 Oct British Airways

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

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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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