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	TAP
06 May - 27 May	TAP
29 May - 05 Jun	FrenchBee
10 May - 17 May	FrenchBee
03 May - 10 May	TAP
03 May - 13 May	TAP
08 May - 15 May	TAP
27 May - 03 Jun	TAP
13 May - 20 May	TAP
01 May - 22 May	FrenchBee
01 May - 08 May	FrenchBee
15 May - 22 May	FrenchBee
27 May - 05 Jun	TAP
25 May - 01 Jun	Air Transat
31 May - 07 Jun	Air Transat
26 May - 02 Jun	Air Transat
28 May - 04 Jun	Air Canada
30 May - 06 Jun	Royal Air Maroc
27 May - 05 Jun	Turkish Airlines	direct
27 May - 03 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 $779

Return flights