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

Return flights

04 Mar - 10 Mar	Lufthansa
16 Mar - 06 Apr	Lufthansa
28 Mar - 12 Apr	Lufthansa
24 Mar - 28 Apr	Lufthansa
18 Mar - 31 Mar	Qatar Airways
05 Mar - 12 Mar	Qatar Airways
25 Mar - 04 Apr	Lufthansa
17 Mar - 26 Mar	Qatar Airways
17 Mar - 24 Mar	Qatar Airways
10 Mar - 23 Mar	Qatar Airways
21 Mar - 01 Apr	Qatar Airways
10 Mar - 26 Mar	Qatar Airways
20 Mar - 24 Mar	Qatar Airways
26 Mar - 04 Apr	Lufthansa
01 Mar - 15 Mar	Alaska Airlines
20 Mar - 28 Mar	Qatar Airways
29 Mar - 05 Apr	Qatar Airways
27 Mar - 01 Apr	Qatar Airways
27 Mar - 05 Apr	Qatar Airways
29 Mar - 03 Apr	Qatar Airways

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

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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Cheapest return flights from Ontario to Istanbul in March from $638

Return flights