Cheapest return flights from Ontario to Istanbul in April from $958

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

Return flights

08 Apr - 22 Apr British Airways
07 Apr - 26 May British Airways
29 Apr - 23 May British Airways
14 Apr - 28 Apr Qatar Airways
27 Apr - 23 May Qatar Airways
06 Apr - 02 May Qatar Airways
20 Apr - 02 May Qatar Airways
19 Apr - 09 May Qatar Airways
11 Apr - 25 Apr Qatar Airways
17 Apr - 09 May Qatar Airways
10 Apr - 19 Apr Alaska Airlines
10 Apr - 02 May Qatar Airways
05 Apr - 16 Apr Qatar Airways

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

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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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