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

Return flights

02 Oct - 07 Oct	KLM
29 Oct - 07 Nov	Air Canada
29 Oct - 09 Nov	Air Canada
08 Oct - 12 Oct	Transavia France
11 Oct - 16 Nov	Air Canada
29 Oct - 08 Nov	Air Canada
08 Oct - 19 Oct	Air Canada
09 Oct - 20 Oct	Air Canada
12 Oct - 19 Oct	Air Canada
11 Oct - 19 Oct	Air Canada
19 Oct - 26 Oct	Air Canada
20 Oct - 27 Oct	Air Canada
27 Oct - 10 Nov	Air Canada
14 Oct - 23 Oct	Air Canada
03 Oct - 08 Oct	Transavia France
31 Oct - 05 Nov	AJet
29 Oct - 09 Nov	Turkish Airlines	direct
29 Oct - 07 Nov	Turkish Airlines	direct
31 Oct - 05 Nov	Turkish Airlines	direct
25 Oct - 02 Nov	Air Canada

Also check the deals for one-way flights from Istanbul to Montreal 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 Montreal in October from $558

Return flights