AirHint found the following cheapest return flights from Toronto (YYZ) to Istanbul (IST) in July 2025 (see full year).

Return flights

31 Jul - 31 Aug	Porter Airlines (Canada) Ltd
31 Jul - 12 Aug	WestJet
31 Jul - 04 Aug	Porter Airlines (Canada) Ltd
31 Jul - 09 Aug	WestJet
31 Jul - 05 Aug	WestJet
31 Jul - 04 Aug	Turkish Airlines	direct
31 Jul - 05 Aug	Turkish Airlines	direct
31 Jul - 07 Aug	Turkish Airlines	direct
31 Jul - 12 Aug	Turkish Airlines	direct
31 Jul - 08 Aug	Turkish Airlines	direct

Also check the deals for one-way flights from Toronto to Istanbul in July.

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 Toronto to Istanbul in July from 933€

Return flights