Cheapest return flights from Ontario to Istanbul in April from 688€

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

Return flights

14 Apr - 21 Apr Frontier Airlines
05 Apr - 23 Apr Qatar Airways
18 Apr - 04 May Qatar Airways
01 Apr - 08 Apr Qatar Airways
02 Apr - 05 Apr Qatar Airways
15 Apr - 23 Apr Qatar Airways
01 Apr - 09 Apr Qatar Airways
15 Apr - 07 May Qatar Airways
29 Apr - 06 May Qatar Airways
16 Apr - 05 May Qatar Airways
23 Apr - 30 Apr Qatar Airways
22 Apr - 01 May Qatar Airways
01 Apr - 15 Apr Qatar Airways
08 Apr - 15 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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