Cheapest return flights from Ontario to Istanbul in April from $1027

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

Return flights

01 Apr - 09 Apr British Airways
01 Apr - 30 Apr British Airways
12 Apr - 30 Apr Lufthansa
02 Apr - 09 Apr British Airways
07 Apr - 20 Apr British Airways
16 Apr - 23 Apr British Airways
26 Apr - 30 Apr Lufthansa
08 Apr - 19 Apr British Airways
21 Apr - 27 Apr Lufthansa
22 Apr - 03 May Qatar Airways
01 Apr - 05 Apr British Airways
23 Apr - 10 May Qatar Airways
19 Apr - 03 May Alaska Airlines
11 Apr - 04 May Alaska Airlines
28 Apr - 06 May Qatar Airways
28 Apr - 04 May Qatar Airways
21 Apr - 05 May Qatar Airways
19 Apr - 30 May Alaska Airlines
23 Apr - 04 May Qatar Airways
23 Apr - 03 May 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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