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

One-Way flights

06 Oct	Air Transat
07 Oct	Air Transat
01 Oct	Air Transat
28 Oct	Air Transat
02 Oct	Air Transat
27 Oct	Porter Airlines (Canada) Ltd
12 Oct	Porter Airlines (Canada) Ltd
26 Oct	Porter Airlines (Canada) Ltd
19 Oct	FrenchBee
29 Oct	FrenchBee

Also check the deals for return flights from Montreal to Istanbul 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 one-way flights from Montreal to Istanbul in October from 255€

One-Way flights