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

Return flights

31 Aug - 07 Sep	Porter Airlines (Canada) Ltd
26 Aug - 09 Sep	Air Transat
13 Aug - 26 Sep	FrenchBee
26 Aug - 02 Sep	Air Transat
25 Aug - 01 Sep	Air Transat
18 Aug - 08 Sep	Air Transat
27 Aug - 14 Sep	FrenchBee
24 Aug - 03 Sep	Air Transat
10 Aug - 17 Sep	FrenchBee
19 Aug - 26 Aug	Air Transat
25 Aug - 12 Sep	Air Transat
05 Aug - 12 Aug	Air Transat
20 Aug - 31 Aug	Air Transat
20 Aug - 27 Aug	WestJet
18 Aug - 25 Aug	Air Transat
24 Aug - 31 Aug	Air Transat
13 Aug - 20 Aug	Air Transat
12 Aug - 19 Aug	Porter Airlines (Canada) Ltd
10 Aug - 17 Aug	WestJet
09 Aug - 24 Aug	Porter Airlines (Canada) Ltd

Also check the deals for one-way 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 return flights from Montreal to Istanbul in August from $810

Return flights