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

Return flights

07 Nov - 14 Nov	WestJet
14 Nov - 21 Nov	WestJet
21 Nov - 28 Nov	FrenchBee
19 Nov - 26 Nov	WestJet
11 Nov - 18 Nov	Porter Airlines (Canada) Ltd
22 Nov - 29 Nov	WestJet
28 Nov - 05 Dec	FrenchBee
06 Nov - 13 Nov	Air Transat
20 Nov - 27 Nov	Air Transat
13 Nov - 20 Nov	Air Transat
18 Nov - 25 Nov	Air Transat
24 Nov - 01 Dec	Air Canada
26 Nov - 03 Dec	Air Canada
30 Nov - 07 Dec	Air Canada
29 Nov - 06 Dec	Air Canada
25 Nov - 02 Dec	Air Canada
27 Nov - 04 Dec	Air Canada

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

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 November from 498€

Return flights