AirHint found the following cheapest return flights from Montreal (YUL) to Colombo (CMB) in October 2025 (see full year).

Return flights

05 Oct - 12 Oct	FrenchBee
01 Oct - 29 Oct	FrenchBee
12 Oct - 19 Oct	FrenchBee
28 Oct - 04 Nov	Qatar Airways
29 Oct - 05 Nov	Qatar Airways
02 Oct - 09 Oct	Air Transat
12 Oct - 20 Oct	FrenchBee
01 Oct - 08 Oct	FrenchBee
04 Oct - 11 Oct	Air Transat
03 Oct - 10 Oct	FrenchBee
26 Oct - 02 Nov	Qatar Airways
06 Oct - 13 Oct	FrenchBee
08 Oct - 15 Oct	FrenchBee
30 Oct - 06 Nov	Lufthansa
11 Oct - 01 Nov	Air Transat
25 Oct - 01 Nov	Lufthansa
31 Oct - 07 Nov	Qatar Airways

Also check the deals for one-way flights from Montreal to Colombo in October.

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 Colombo in October from 968€

Return flights