AirHint found the following cheapest return flights from Montreal (YUL) to Istanbul (IST) in December 2025 (see full year).

Return flights

03 Dec - 10 Dec	FrenchBee
10 Dec - 17 Dec	FrenchBee
05 Dec - 12 Dec	FrenchBee
01 Dec - 08 Dec	Air Canada
07 Dec - 14 Dec	Air Canada
08 Dec - 15 Dec	Air Canada
01 Dec - 15 Dec	Air Canada
02 Dec - 09 Dec	Air Canada
04 Dec - 11 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
24 Dec - 15 Jan	British Airways
24 Dec - 16 Jan	Air Canada
21 Dec - 14 Jan	British Airways
29 Dec - 10 Jan	Air Canada
28 Dec - 09 Jan	Air Canada
31 Dec - 07 Jan	Air Canada
01 Dec - 01 Jan	Air Canada
21 Dec - 16 Jan	British Airways
23 Dec - 16 Jan	British Airways
22 Dec - 16 Jan	TAP

Also check the deals for one-way flights from Montreal to Istanbul in December.

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 December from $748

Return flights