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

Return flights

06 Nov - 21 Dec	British Airways
30 Nov - 14 Dec	British Airways
12 Nov - 19 Nov	Qatar Airways
12 Nov - 20 Nov	Qatar Airways
11 Nov - 02 Dec	Qatar Airways
27 Nov - 11 Dec	Qatar Airways
07 Nov - 11 Nov	Qatar Airways
02 Nov - 09 Nov	Qatar Airways
19 Nov - 13 Dec	Qatar Airways
18 Nov - 13 Dec	Qatar Airways
28 Nov - 20 Dec	British Airways
26 Nov - 30 Nov	Qatar Airways
01 Nov - 16 Nov	Qatar Airways
21 Nov - 30 Nov	Qatar Airways
27 Nov - 20 Dec	Qatar Airways
26 Nov - 20 Dec	Qatar Airways
08 Nov - 22 Nov	Alaska Airlines
01 Nov - 08 Nov	Alaska Airlines
04 Nov - 29 Nov	Qatar Airways
29 Nov - 20 Dec	Qatar Airways

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

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 November from $987

Return flights