AirHint found the following cheapest return flights from Montreal (YUL) to Sofia (SOF) in January 2026 (see full year).

Return flights

08 Jan - 15 Jan	British Airways
29 Jan - 05 Feb	British Airways
06 Jan - 13 Jan	British Airways
13 Jan - 20 Jan	British Airways
11 Jan - 18 Jan	FrenchBee
23 Jan - 30 Jan	FrenchBee
20 Jan - 27 Jan	British Airways
27 Jan - 03 Feb	British Airways
28 Jan - 04 Feb	FrenchBee
18 Jan - 25 Jan	Condor
25 Jan - 01 Feb	Condor
16 Jan - 23 Jan	FrenchBee
14 Jan - 21 Jan	Turkish Airlines
21 Jan - 28 Jan	Turkish Airlines
30 Jan - 06 Feb	Turkish Airlines
31 Jan - 07 Feb	Air Canada

Also check the deals for one-way flights from Montreal to Sofia in January.

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 Sofia in January from $710

Return flights