AirHint found the following cheapest return flights from Ontario (ONT) to Kuala Lumpur (KUL) in December 2025 (see full year).

Return flights

01 Dec - 08 Dec	China Airlines
03 Dec - 10 Dec	China Airlines
01 Dec - 28 Dec	China Airlines
03 Dec - 29 Dec	China Airlines
06 Dec - 20 Dec	China Airlines
03 Dec - 19 Dec	China Airlines
03 Dec - 20 Dec	China Airlines
03 Dec - 17 Dec	China Airlines
24 Dec - 14 Jan	China Airlines
23 Dec - 13 Jan	China Airlines
23 Dec - 15 Jan	China Airlines
03 Dec - 08 Dec	China Airlines
02 Dec - 09 Dec	Qatar Airways
25 Dec - 04 Jan	China Airlines
22 Dec - 22 Jan	China Airlines
26 Dec - 03 Jan	China Airlines
14 Dec - 01 Jan	China Airlines
23 Dec - 01 Jan	China Airlines
26 Dec - 04 Jan	China Airlines
19 Dec - 07 Jan	China Airlines

Also check the deals for one-way flights from Ontario to Kuala Lumpur 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 Ontario to Kuala Lumpur in December from $1104

Return flights