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

Return flights

19 Oct - 08 Nov	Air Transat
11 Oct - 15 Nov	Air Transat
14 Oct - 08 Nov	Porter Airlines (Canada) Ltd
16 Oct - 08 Nov	Porter Airlines (Canada) Ltd
12 Oct - 16 Nov	FrenchBee
14 Oct - 06 Nov	Porter Airlines (Canada) Ltd
18 Oct - 08 Nov	WestJet
17 Oct - 08 Nov	Air Transat
14 Oct - 10 Nov	Air Transat
12 Oct - 05 Nov	Air Transat
06 Oct - 10 Oct	FrenchBee
06 Oct - 12 Oct	FrenchBee
14 Oct - 28 Oct	Air Transat
05 Oct - 12 Oct	FrenchBee
12 Oct - 22 Oct	Air Transat
01 Oct - 08 Oct	FrenchBee
12 Oct - 16 Oct	Air Transat
04 Oct - 11 Oct	Air Transat
19 Oct - 27 Oct	Air Transat
03 Oct - 08 Oct	FrenchBee

Also check the deals for one-way flights from Montreal to Istanbul in October.

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 October from $641

Return flights