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

Return flights

15 Jul - 31 Aug	China Airlines
09 Jul - 21 Jul	China Airlines
05 Jul - 19 Jul	China Airlines
04 Jul - 10 Jul	China Airlines
20 Jul - 25 Aug	China Airlines
16 Jul - 17 Aug	China Airlines
31 Jul - 13 Aug	China Airlines
12 Jul - 26 Jul	China Airlines
10 Jul - 25 Jul	China Airlines
24 Jul - 04 Aug	China Airlines
14 Jul - 28 Jul	China Airlines
31 Jul - 12 Aug	China Airlines
01 Jul - 05 Aug	China Airlines
21 Jul - 10 Aug	China Airlines
02 Jul - 22 Jul	China Airlines
18 Jul - 27 Jul	China Airlines
06 Jul - 27 Jul	China Airlines
01 Jul - 15 Jul	China Airlines

Also check the deals for one-way flights from Ontario to Jakarta in July.

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 July from $1125

Return flights