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

Return flights

05 Apr - 12 Apr	FrenchBee
12 Apr - 19 Apr	British Airways
19 Apr - 26 Apr	British Airways
26 Apr - 03 May	British Airways
30 Apr - 07 May	Air Transat
15 Apr - 22 Apr	FrenchBee
22 Apr - 29 Apr	FrenchBee
01 Apr - 08 Apr	FrenchBee
13 Apr - 20 Apr	FrenchBee
06 Apr - 13 Apr	FrenchBee
29 Apr - 06 May	FrenchBee
20 Apr - 27 Apr	FrenchBee
02 Apr - 09 Apr	Air Transat
27 Apr - 04 May	FrenchBee
24 Apr - 01 May	Air Transat
28 Apr - 05 May	Porter Airlines (Canada) Ltd
25 Apr - 02 May	Air Transat

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

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.

Book a cheap hotel in Sofia

Cheap car rent in Sofia

Cheapest return flights from Montreal to Sofia in April from $650

Return flights