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

Return flights

06 Dec - 31 Dec	China Airlines
08 Dec - 05 Jan	China Airlines
11 Dec - 31 Dec	China Airlines
19 Dec - 29 Dec	China Airlines
19 Dec - 22 Dec	China Airlines
01 Dec - 14 Dec	Qatar Airways
19 Dec - 07 Jan	China Airlines
12 Dec - 01 Jan	Qatar Airways
19 Dec - 17 Jan	Qatar Airways

Also check the deals for one-way flights from Ontario to Jakarta 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 Jakarta in December from 1174€

Return flights