Cheapest return flights from Montreal to Sofia in September from $699

Best time to book flights for Montreal (YUL) to Sofia (SOF) flights at AirHint

AirHint found the following cheapest return flights from Montreal (YUL) to Sofia (SOF) in September 2025 (see full year).

Return flights

10 Sep - 17 Sep FrenchBee
28 Sep - 05 Oct FrenchBee
22 Sep - 29 Sep FrenchBee
24 Sep - 01 Oct FrenchBee
14 Sep - 21 Sep FrenchBee
03 Sep - 10 Sep FrenchBee
17 Sep - 24 Sep FrenchBee
15 Sep - 22 Sep FrenchBee
01 Sep - 26 Sep FrenchBee
02 Sep - 09 Sep Air Transat
29 Sep - 06 Oct FrenchBee
09 Sep - 30 Sep Condor
30 Sep - 07 Oct Air Transat
23 Sep - 30 Sep Condor
25 Sep - 02 Oct Condor
26 Sep - 03 Oct Turkish Airlines

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

Skyscanner

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