Cheapest return YUL–IST flights, September

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

Return flights

08 Sep - 20 Sep WestJet
06 Sep - 18 Sep WestJet
25 Sep - 02 Oct Air Transat
02 Sep - 23 Sep WestJet
29 Sep - 06 Oct Air Transat
29 Sep - 13 Oct Air Transat
13 Sep - 20 Sep Air Transat
24 Sep - 01 Oct Air Transat
02 Sep - 30 Sep WestJet
04 Sep - 25 Sep WestJet
25 Sep - 07 Oct FrenchBee
22 Sep - 29 Sep Air Transat
17 Sep - 24 Sep Air Transat
15 Sep - 29 Sep Air Transat
26 Sep - 03 Oct Air Transat
11 Sep - 18 Sep FrenchBee
27 Sep - 07 Oct FrenchBee
15 Sep - 06 Oct Air Transat
30 Sep - 07 Oct FrenchBee
14 Sep - 12 Oct FrenchBee

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

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