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

Return flights

17 Jun - 24 Jun	FrenchBee
07 Jun - 14 Jun	Air Transat
05 Jun - 12 Jun	Air Transat
03 Jun - 10 Jun	FrenchBee
04 Jun - 11 Jun	Air Transat
12 Jun - 19 Jun	Air Transat
14 Jun - 21 Jun	FrenchBee
01 Jun - 08 Jun	FrenchBee
02 Jun - 09 Jun	Air Transat
08 Jun - 15 Jun	Porter Airlines (Canada) Ltd
30 Jun - 07 Jul	FrenchBee
23 Jun - 10 Jul	FrenchBee
24 Jun - 01 Jul	Air Canada
25 Jun - 02 Jul	Air Transat
29 Jun - 06 Jul	SWISS
26 Jun - 03 Jul	Air Canada
27 Jun - 04 Jul	Air Canada

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 570€

Return flights