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

One-Way flights

25 Aug	TAP
13 Aug	Porter Airlines (Canada) Ltd
14 Aug	Porter Airlines (Canada) Ltd
06 Aug	Porter Airlines (Canada) Ltd
31 Aug	Air Transat
19 Aug	Porter Airlines (Canada) Ltd
18 Aug	TAP
20 Aug	TAP
17 Aug	Porter Airlines (Canada) Ltd
26 Aug	FrenchBee

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 304€

One-Way flights