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

Return flights

08 Dec - 26 Dec	Cathay Pacific
08 Dec - 19 Dec	Cathay Pacific
01 Dec - 18 Dec	Air Canada
07 Dec - 31 Dec	Air Canada
14 Dec - 05 Jan	Air Canada
15 Dec - 06 Jan	Air Canada
29 Dec - 05 Jan	Air Canada
08 Dec - 05 Jan	Air Canada
09 Dec - 09 Jan	Air Canada
15 Dec - 05 Jan	Air Canada
26 Dec - 26 Jan	Air Canada
14 Dec - 01 Jan	Air Canada
21 Dec - 21 Jan	Air Canada
25 Dec - 23 Jan	SriLankan Airlines
10 Dec - 24 Dec	SriLankan Airlines

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

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 December from 1116€

Return flights