AirHint found the following cheapest return flights from Montreal (YUL) to Istanbul (IST) in August 2026 (see full year).

Return flights

28 Aug - 04 Sep	WestJet
21 Aug - 02 Sep	WestJet
26 Aug - 02 Sep	WestJet
29 Aug - 13 Sep	WestJet
30 Aug - 06 Sep	WestJet
13 Aug - 02 Sep	WestJet
21 Aug - 28 Aug	WestJet
31 Aug - 07 Sep	Air Transat
27 Aug - 03 Sep	WestJet
18 Aug - 25 Aug	WestJet
24 Aug - 31 Aug	WestJet
17 Aug - 24 Aug	WestJet
13 Aug - 20 Aug	WestJet
20 Aug - 27 Aug	WestJet
19 Aug - 26 Aug	Air Transat
29 Aug - 05 Sep	WestJet
25 Aug - 01 Sep	Air Transat
07 Aug - 14 Aug	Air Transat
14 Aug - 21 Aug	WestJet
04 Aug - 11 Aug	British Airways

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 639€

Return flights