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

Return flights

13 Oct - 21 Oct	Icelandair
11 Oct - 11 Nov	British Airways
14 Oct - 13 Nov	British Airways
14 Oct - 12 Nov	British Airways
15 Oct - 12 Nov	British Airways
23 Oct - 05 Nov	KLM
05 Oct - 12 Oct	Icelandair

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

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 Oslo to Toronto in October from 383€

Return flights