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

Return flights

11 Dec - 18 Dec	Icelandair
10 Dec - 26 Dec	Icelandair
24 Dec - 29 Dec	Icelandair
24 Dec - 05 Jan	Icelandair
31 Dec - 21 Jan	Air Canada
30 Dec - 21 Jan	Air Canada
30 Dec - 18 Jan	Air Canada
30 Dec - 20 Jan	Air Canada
31 Dec - 15 Jan	Air Canada
31 Dec - 20 Jan	Air Canada
14 Dec - 14 Jan	British Airways
01 Dec - 31 Dec	Air Canada
28 Dec - 12 Jan	Air Canada
08 Dec - 15 Dec	Icelandair
31 Dec - 07 Jan	Air Canada
10 Dec - 30 Dec	Air Canada
10 Dec - 31 Dec	Air Canada
02 Dec - 16 Dec	EgyptAir
10 Dec - 17 Dec	Icelandair
03 Dec - 24 Dec	Air Canada

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

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 December from 617€

Return flights