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

Return flights

05 Dec - 12 Dec	Air Transat
28 Dec - 18 Jan	British Airways
10 Dec - 17 Dec	FrenchBee
01 Dec - 08 Dec	Air Canada
02 Dec - 09 Dec	Air Canada
07 Dec - 14 Dec	FrenchBee
26 Dec - 18 Jan	British Airways
27 Dec - 19 Jan	British Airways
27 Dec - 18 Jan	British Airways
04 Dec - 11 Dec	Air Canada
06 Dec - 13 Dec	Air Canada
09 Dec - 16 Dec	Air Canada
27 Dec - 17 Jan	British Airways
15 Dec - 19 Jan	British Airways
14 Dec - 21 Dec	TAP
14 Dec - 18 Jan	TAP
12 Dec - 19 Dec	Air Canada
27 Dec - 09 Jan	British Airways
22 Dec - 15 Jan	Air Canada
23 Dec - 15 Jan	Air Canada

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 590€

Return flights