AirHint found the following cheapest return flights from Toronto (YYZ) to Istanbul (SAW) in September 2025 (see full year).

Return flights

17 Sep - 21 Sep	WestJet
27 Sep - 14 Oct	Air Transat
28 Sep - 04 Oct	WestJet
16 Sep - 08 Oct	British Airways
18 Sep - 24 Sep	WestJet
23 Sep - 09 Oct	Air Transat
17 Sep - 01 Oct	British Airways
16 Sep - 01 Oct	British Airways
02 Sep - 21 Sep	Flair Airlines
24 Sep - 13 Oct	WestJet
17 Sep - 23 Oct	British Airways
21 Sep - 09 Oct	British Airways
03 Sep - 17 Sep	Air Transat
03 Sep - 10 Sep	Air Transat
30 Sep - 10 Oct	WestJet
14 Sep - 28 Sep	Air Transat
01 Sep - 11 Sep	WestJet
03 Sep - 16 Sep	Air Transat
14 Sep - 22 Sep	Air Transat
01 Sep - 17 Sep	Air Transat

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

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 Toronto to Istanbul in September from $615

Return flights