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

Return flights

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

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 $913

Return flights