Cheapest return flights from Ontario to Sydney in July from $1349

Best time to book flights for Ontario (ONT) to Sydney (SYD) flights at AirHint

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

Return flights

02 Jul - 13 Jul Alaska Airlines
05 Jul - 20 Jul Alaska Airlines
26 Jul - 10 Aug Alaska Airlines
05 Jul - 04 Aug Alaska Airlines
07 Jul - 14 Jul Lufthansa
06 Jul - 21 Jul Lufthansa
02 Jul - 14 Jul Alaska Airlines
29 Jul - 28 Aug China Airlines
16 Jul - 30 Jul Alaska Airlines
17 Jul - 03 Aug Alaska Airlines
19 Jul - 17 Aug China Airlines
07 Jul - 21 Jul Alaska Airlines
14 Jul - 20 Jul China Airlines
26 Jul - 06 Aug China Airlines
15 Jul - 20 Jul China Airlines
21 Jul - 31 Jul China Airlines
14 Jul - 11 Aug China Airlines
14 Jul - 14 Aug China Airlines
11 Jul - 14 Aug China Airlines
20 Jul - 05 Aug Japan Airlines

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

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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