Cheapest return flights from Montreal to Sofia in September from 538€

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

Return flights

16 Sep - 23 Sep Porter Airlines (Canada) Ltd
09 Sep - 16 Sep Air Transat
02 Sep - 09 Sep Porter Airlines (Canada) Ltd
15 Sep - 22 Sep FrenchBee
17 Sep - 24 Sep Porter Airlines (Canada) Ltd
28 Sep - 05 Oct FrenchBee
22 Sep - 29 Sep FrenchBee
25 Sep - 02 Oct Air Transat
14 Sep - 21 Sep FrenchBee
03 Sep - 10 Sep FrenchBee
21 Sep - 28 Sep FrenchBee
19 Sep - 28 Sep FrenchBee
30 Sep - 07 Oct Porter Airlines (Canada) Ltd
29 Sep - 06 Oct FrenchBee
24 Sep - 01 Oct Porter Airlines (Canada) Ltd
26 Sep - 03 Oct FrenchBee
27 Sep - 04 Oct Air Transat

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.

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