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

Return flights

04 May - 11 May	Air Transat
13 May - 20 May	FrenchBee
05 May - 12 May	Air Transat
06 May - 13 May	Air Transat
25 May - 01 Jun	Air Transat
23 May - 31 May	Air Transat
13 May - 27 May	Air Transat
08 May - 15 May	TAP
27 May - 03 Jun	Porter Airlines (Canada) Ltd
20 May - 27 May	FrenchBee
24 May - 31 May	FrenchBee
01 May - 08 May	Air Transat
17 May - 17 Jun	FrenchBee
31 May - 07 Jun	Air Transat
23 May - 07 Jun	FrenchBee
26 May - 02 Jun	Air Transat
29 May - 05 Jun	FrenchBee
17 May - 01 Jun	Air Transat
30 May - 06 Jun	FrenchBee
28 May - 04 Jun	Air Transat

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 629€

Return flights