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

One-Way flights

28 Sep	Air Transat
23 Sep	Porter Airlines (Canada) Ltd
29 Sep	Air Transat
26 Sep	Air Transat
15 Sep	FrenchBee
03 Sep	FrenchBee
09 Sep	Air Transat
17 Sep	Porter Airlines (Canada) Ltd
02 Sep	Air Transat
04 Sep	Air Transat

Also check the deals for return flights from Montreal to Istanbul 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.

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Cheapest one-way flights from Montreal to Istanbul in September from $344

One-Way flights