Cheapest return flights from Ontario to Istanbul in December from $1263

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

Return flights

14 Dec - 28 Dec British Airways
11 Dec - 25 Dec Alaska Airlines
06 Dec - 20 Dec Alaska Airlines
01 Dec - 01 Jan Alaska Airlines
25 Dec - 03 Jan Alaska Airlines
18 Dec - 03 Jan Alaska Airlines
19 Dec - 04 Jan Alaska Airlines

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

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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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