Cheapest return flights from Ontario to Istanbul in May from $1091

Best time to book flights for Ontario (ONT) to Istanbul (IST) flights at AirHint

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

Return flights

05 May - 27 May jetBlue
03 May - 06 May Alaska Airlines
05 May - 11 May Turkish Airlines
09 May - 12 May Turkish Airlines
08 May - 13 May Turkish Airlines
09 May - 16 May Turkish Airlines
02 May - 04 May Turkish Airlines
01 May - 08 May jetBlue
13 May - 20 May Turkish Airlines
09 May - 11 May Turkish Airlines
21 May - 02 Jun Turkish Airlines
22 May - 02 Jun Turkish Airlines
28 May - 04 Jun KLM
26 May - 07 Jun KLM
27 May - 10 Jun KLM
05 May - 02 Jun Etihad Airways
24 May - 01 Jun Etihad Airways
24 May - 13 Jun Turkish Airlines

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

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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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