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

One-Way flights

17 Aug	FrenchBee
16 Aug	FrenchBee
18 Aug	FrenchBee
14 Aug	FrenchBee
31 Aug	Porter Airlines (Canada) Ltd
19 Aug	Porter Airlines (Canada) Ltd
20 Aug	Porter Airlines (Canada) Ltd
25 Aug	FrenchBee
23 Aug	Porter Airlines (Canada) Ltd
22 Aug	Porter Airlines (Canada) Ltd

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

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 August from 291€

One-Way flights