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

Return flights

08 Jun - 15 Jun	FrenchBee
11 Jun - 18 Jun	Brussels Airlines
04 Jun - 11 Jun	Brussels Airlines
09 Jun - 16 Jun	SWISS
02 Jun - 09 Jun	SWISS
16 Jun - 23 Jun	SWISS
17 Jun - 24 Jun	Air Canada
10 Jun - 17 Jun	Air Canada
01 Jun - 08 Jun	Air Canada
03 Jun - 10 Jun	Air Canada
28 Jun - 05 Jul	British Airways
30 Jun - 07 Jul	Air Canada
24 Jun - 01 Jul	Lufthansa
25 Jun - 02 Jul	Air Canada
29 Jun - 06 Jul	Lufthansa
26 Jun - 03 Jul	Air Canada
27 Jun - 04 Jul	Air Canada
11 Jun - 19 Jul	Air France

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

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 June from 793€

Return flights