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

Return flights

11 Jan - 18 Jan	Air Canada
12 Jan - 19 Jan	Air Canada
16 Jan - 23 Jan	TAP
18 Jan - 25 Jan	Air Canada
21 Jan - 28 Jan	Air Canada
14 Jan - 21 Jan	Air Canada
28 Jan - 04 Feb	Air Canada
19 Jan - 26 Jan	Air Canada
25 Jan - 01 Feb	Air Canada
19 Jan - 19 Feb	Lufthansa
17 Jan - 24 Jan	Lufthansa
24 Jan - 31 Jan	Air Canada
31 Jan - 07 Feb	Air Canada
26 Jan - 02 Feb	Lufthansa
23 Jan - 30 Jan	TAP
29 Jan - 05 Feb	Air Canada
30 Jan - 06 Feb	Air Canada
27 Jan - 03 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 568€

Return flights