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
01 May - 08 May	Air Transat
01 May - 13 May	Air Transat
24 May - 31 May	Air Transat
25 May - 01 Jun	Air Transat
04 May - 11 May	FrenchBee
20 May - 27 May	FrenchBee
23 May - 30 May	Air Transat
13 May - 20 May	FrenchBee
11 May - 18 May	FrenchBee
10 May - 17 May	Air Transat
31 May - 14 Jun	FrenchBee
27 May - 03 Jun	FrenchBee
28 May - 04 Jun	Air France
31 May - 07 Jun	Air France
29 May - 05 Jun	FrenchBee
26 May - 02 Jun	Air France
30 May - 06 Jun	Air Transat
27 May - 03 Jun	Turkish Airlines	direct
31 May - 07 Jun	Turkish Airlines	direct

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 $697

Return flights