AirHint found the following cheapest return flights from Toronto (YYZ) to Istanbul (IST) in May 2026 (see full year).

Return flights

21 May - 27 May	Air Canada
06 May - 20 May	British Airways
05 May - 19 May	British Airways
10 May - 13 May	Air Canada
12 May - 26 May	British Airways
18 May - 25 May	British Airways
12 May - 19 May	British Airways
19 May - 26 May	British Airways
05 May - 21 May	British Airways
11 May - 21 May	British Airways
26 May - 09 Jun	EgyptAir
26 May - 16 Jun	EgyptAir
29 May - 06 Jun	EgyptAir
29 May - 19 Jun	EgyptAir
19 May - 02 Jun	LOT
27 May - 10 Jun	LOT
20 May - 03 Jun	LOT
12 May - 02 Jun	LOT
27 May - 17 Jun	LOT
13 May - 03 Jun	LOT

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

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 May from 633€

Return flights