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

Return flights

15 Oct - 22 Oct	Icelandair
11 Oct - 24 Oct	Icelandair
15 Oct - 08 Nov	WestJet
01 Oct - 25 Oct	WestJet
01 Oct - 04 Oct	WestJet
14 Oct - 21 Oct	Air Transat
29 Oct - 03 Nov	Scandinavian Airlines
28 Oct - 03 Nov	Scandinavian Airlines
15 Oct - 29 Oct	WestJet
02 Oct - 05 Oct	Air Transat
02 Oct - 07 Oct	Air Transat
07 Oct - 16 Oct	WestJet
20 Oct - 27 Oct	Scandinavian Airlines
23 Oct - 02 Nov	Icelandair
02 Oct - 02 Nov	Air Transat

Also check the deals for one-way flights from Toronto to Oslo 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 Toronto to Oslo in October from $507

Return flights