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

Return flights

05 Jul - 12 Jul	British Airways
07 Jul - 14 Jul	Air Transat
14 Jul - 21 Jul	Air Transat
12 Jul - 19 Jul	British Airways
01 Jul - 08 Jul	FrenchBee
13 Jul - 20 Jul	Air Transat
08 Jul - 15 Jul	FrenchBee
26 Jul - 02 Aug	British Airways
28 Jul - 04 Aug	FrenchBee
27 Jul - 03 Aug	Air Transat
20 Jul - 27 Jul	Air Transat
15 Jul - 22 Jul	Lufthansa
22 Jul - 29 Jul	Lufthansa
29 Jul - 05 Aug	Lufthansa
31 Jul - 07 Aug	Lufthansa
30 Jul - 06 Aug	Air Transat
25 Jul - 01 Aug	Air Transat

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

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 July from 773€

Return flights