Cheapest return flights from Ontario to Sydney in August from $1449

AirHint found the following cheapest return flights from Ontario (ONT) to Sydney (SYD) in August 2026 (see full year).

Return flights

26 Aug - 31 Aug Alaska Airlines
19 Aug - 26 Aug China Airlines
31 Aug - 07 Sep China Airlines
25 Aug - 11 Sep China Airlines
17 Aug - 24 Aug China Airlines
21 Aug - 28 Aug China Airlines
28 Aug - 04 Sep China Airlines
25 Aug - 31 Aug China Airlines
24 Aug - 31 Aug China Airlines
19 Aug - 31 Aug China Airlines
22 Aug - 04 Sep China Airlines
10 Aug - 17 Aug China Airlines
05 Aug - 12 Aug China Airlines
12 Aug - 19 Aug China Airlines
19 Aug - 02 Sep China Airlines
26 Aug - 02 Sep China Airlines
25 Aug - 01 Sep Qatar Airways
27 Aug - 03 Sep Qatar Airways
27 Aug - 04 Sep Qatar Airways
27 Aug - 07 Sep Qatar Airways

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

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