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
05 Aug - 19 Aug	Fiji Airways
21 Aug - 27 Aug	Fiji Airways
19 Aug - 02 Sep	Fiji Airways
25 Aug - 03 Sep	Fiji Airways
24 Aug - 03 Sep	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
15 Aug - 22 Aug	Qantas
04 Aug - 14 Aug	Qantas	direct
05 Aug - 19 Aug	Qantas	direct
08 Aug - 18 Aug	Qantas	direct
21 Aug - 31 Aug	Qantas	direct
03 Aug - 08 Aug	Air Canada
05 Aug - 11 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 $700

Return flights