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

Return flights

22 Sep - 15 Oct	Icelandair
15 Sep - 15 Oct	Icelandair
11 Sep - 16 Sep	Icelandair
15 Sep - 23 Sep	Icelandair
11 Sep - 22 Sep	KLM
08 Sep - 16 Sep	Icelandair
12 Sep - 15 Sep	KLM
18 Sep - 23 Sep	Icelandair
19 Sep - 28 Sep	KLM
12 Sep - 27 Sep	KLM
18 Sep - 30 Oct	KLM
12 Sep - 16 Sep	KLM
16 Sep - 29 Sep	Wizz Air UK
16 Sep - 06 Oct	Wizz Air UK
30 Sep - 15 Oct	Air Canada
14 Sep - 15 Oct	Pegasus Airlines
23 Sep - 01 Oct	KLM
08 Sep - 22 Oct	Icelandair
22 Sep - 17 Oct	LOT
22 Sep - 21 Oct	LOT

Also check the deals for one-way flights from Istanbul to Toronto in September.

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.

Book a cheap hotel in Toronto

Cheap car rent in Toronto

Cheapest return flights from Istanbul to Toronto in September from 351€

Return flights