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

Return flights

31 Mar - 07 Apr	Air Canada
16 Mar - 23 Mar	Air Canada
18 Mar - 25 Mar	Air Canada
23 Mar - 30 Mar	Air Canada
25 Mar - 01 Apr	Air Canada
25 Mar - 08 Apr	Air Canada
22 Mar - 29 Mar	Air Canada
30 Mar - 06 Apr	Air Canada
15 Mar - 22 Mar	Air Canada
17 Mar - 24 Mar	Air Canada
24 Mar - 31 Mar	Air Canada
05 Mar - 12 Mar	Austrian Airlines
04 Mar - 11 Mar	Air Canada
09 Mar - 16 Mar	Air Canada
29 Mar - 05 Apr	Air Canada
02 Mar - 03 Apr	Lufthansa
04 Mar - 04 Apr	Air Canada
27 Mar - 03 Apr	FrenchBee
26 Mar - 02 Apr	Air Canada
28 Mar - 04 Apr	Air Canada

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

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 March from 452€

Return flights