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

Return flights

24 Oct - 29 Oct	Icelandair
03 Oct - 11 Oct	Icelandair
08 Oct - 15 Oct	KLM
06 Oct - 27 Oct	KLM
08 Oct - 16 Oct	KLM
20 Oct - 19 Nov	KLM
20 Oct - 27 Oct	KLM
04 Oct - 07 Oct	British Airways
22 Oct - 26 Nov	KLM
17 Oct - 12 Nov	Icelandair
17 Oct - 05 Nov	Icelandair
06 Oct - 29 Oct	Icelandair
01 Oct - 11 Oct	KLM
01 Oct - 20 Oct	KLM
14 Oct - 09 Nov	Air Canada
15 Oct - 15 Nov	Air Canada
29 Oct - 08 Nov	KLM
21 Oct - 11 Nov	KLM
23 Oct - 14 Nov	KLM
16 Oct - 17 Nov	Wizz Air UK

Also check the deals for one-way flights from Istanbul 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 Istanbul to Toronto in October from 386€

Return flights