AirHint found the following cheapest return flights from Ontario (ONT) to Istanbul (IST) in January 2026 (see full year).

Return flights

19 Jan - 03 Feb	British Airways
28 Jan - 10 Feb	British Airways
28 Jan - 12 Feb	British Airways
23 Jan - 04 Feb	British Airways
22 Jan - 25 Jan	British Airways
20 Jan - 25 Jan	British Airways
23 Jan - 30 Jan	Alaska Airlines
26 Jan - 18 Feb	Alaska Airlines
27 Jan - 18 Feb	Alaska Airlines
27 Jan - 19 Feb	Alaska Airlines
24 Jan - 01 Feb	Alaska Airlines
23 Jan - 01 Feb	Alaska Airlines
21 Jan - 01 Feb	Alaska Airlines
13 Jan - 20 Jan	Alaska Airlines
14 Jan - 21 Jan	Alaska Airlines
15 Jan - 21 Jan	Iberia
14 Jan - 19 Jan	British Airways
16 Jan - 20 Jan	Alaska Airlines
15 Jan - 29 Jan	Alaska Airlines
23 Jan - 28 Jan	Alaska Airlines

Also check the deals for one-way flights from Ontario to Istanbul in January.

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 Ontario to Istanbul in January from $585

Return flights