Cheapest return flights from Ontario to Istanbul in August from $980

Best time to book flights for Ontario (ONT) to Istanbul (IST) flights at AirHint

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

Return flights

17 Aug - 31 Aug Delta
20 Aug - 07 Sep Qatar Airways
25 Aug - 08 Sep Qatar Airways
01 Aug - 11 Sep Turkish Airlines
28 Aug - 11 Sep British Airways
20 Aug - 27 Aug jetBlue
29 Aug - 11 Sep Alaska Airlines
17 Aug - 05 Sep Etihad Airways
01 Aug - 08 Aug Alaska Airlines
04 Aug - 11 Aug Alaska Airlines
09 Aug - 16 Aug Etihad Airways
09 Aug - 23 Aug Etihad Airways
16 Aug - 23 Aug jetBlue

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

Skyscanner

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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