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

Return flights

19 May - 22 May	Scandinavian Airlines
10 May - 17 May	Scandinavian Airlines
19 May - 25 May	Scandinavian Airlines
19 May - 24 May	Scandinavian Airlines
23 May - 31 May	Air Transat
05 May - 02 Jun	WestJet
04 May - 12 May	Air Transat
04 May - 11 May	Air Transat
01 May - 12 May	Air Transat
19 May - 26 May	Scandinavian Airlines
15 May - 30 May	WestJet
23 May - 04 Jun	Air Transat
24 May - 16 Jun	WestJet
22 May - 21 Jun	LOT
29 May - 27 Jun	LOT
29 May - 28 Jun	LOT
22 May - 14 Jun	LOT
09 May - 17 Jun	WestJet
11 May - 23 Jun	WestJet
31 May - 30 Jun	Air Transat

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 555€

Return flights