Cheapest one-way flights from Ontario to Jakarta in December from $673

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

One-Way flights

07 Dec China Airlines

Also check the deals for return flights from Ontario to Jakarta in December.

Skyscanner

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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