AirHint found the following cheapest return flights from Los Angeles (LAX) to Sydney (SYD) in August 2025 (see full year).

Return flights

07 Aug - 02 Sep	Alaska Airlines
21 Aug - 27 Aug	Fiji Airways
27 Aug - 02 Sep	Fiji Airways
27 Aug - 05 Sep	Fiji Airways
22 Aug - 05 Sep	Fiji Airways
28 Aug - 02 Sep	Fiji Airways
31 Aug - 09 Sep	Fiji Airways
26 Aug - 23 Sep	Alaska Airlines
21 Aug - 31 Aug	Alaska Airlines
23 Aug - 09 Sep	Qantas
15 Aug - 22 Aug	Qantas
28 Aug - 08 Sep	Fiji Airways
19 Aug - 29 Aug	Hawaiian Airlines
08 Aug - 18 Aug	Qantas	direct
21 Aug - 31 Aug	Qantas	direct
07 Aug - 02 Sep	Qantas	direct
13 Aug - 21 Aug	Fiji Airways
21 Aug - 27 Aug	Qantas	direct
13 Aug - 21 Aug	Qantas	direct
15 Aug - 23 Aug	Qantas	direct

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

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 Los Angeles to Sydney in August from $701

Return flights