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

Return flights

06 May - 13 May	Air Transat
06 May - 27 May	Air Transat
24 May - 31 May	Air Transat
25 May - 01 Jun	Air Transat
01 May - 08 May	Air Transat
04 May - 11 May	FrenchBee
20 May - 27 May	FrenchBee
23 May - 30 May	Air Transat
13 May - 20 May	FrenchBee
10 May - 17 May	FrenchBee
18 May - 25 May	FrenchBee
31 May - 14 Jun	FrenchBee
22 May - 13 Jun	KLM
24 May - 13 Jun	Air France
20 May - 13 Jun	Air France
27 May - 03 Jun	FrenchBee
31 May - 07 Jun	Air France
28 May - 04 Jun	Air France
31 May - 03 Jun	FrenchBee
29 May - 05 Jun	FrenchBee

Also check the deals for one-way flights from Montreal 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 Montreal to Istanbul in May from 606€

Return flights