AirHint found the following cheapest return flights from Toronto (YYZ) to Colombo (CMB) in September 2025 (see full year).

Return flights

08 Sep - 30 Sep	British Airways
08 Sep - 15 Sep	British Airways
11 Sep - 20 Sep	British Airways
03 Sep - 29 Sep	British Airways
02 Sep - 17 Sep	British Airways
04 Sep - 21 Sep	British Airways
20 Sep - 04 Oct	British Airways
12 Sep - 01 Oct	British Airways
06 Sep - 25 Sep	SriLankan Airlines
14 Sep - 04 Oct	British Airways
06 Sep - 27 Sep	SriLankan Airlines
06 Sep - 09 Oct	SriLankan Airlines
08 Sep - 21 Sep	British Airways
12 Sep - 05 Oct	Etihad Airways
11 Sep - 13 Oct	Emirates
01 Sep - 06 Oct	Emirates
03 Sep - 03 Oct	Emirates
07 Sep - 27 Sep	Emirates
12 Sep - 17 Oct	Emirates

Also check the deals for one-way flights from Toronto to Colombo in September.

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 Toronto to Colombo in September from 985€

Return flights