Cheapest return flights from Los Angeles to Sydney in September from $664

Best time to book flights for Los Angeles (LAX) to Sydney (SYD) flights at AirHint

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

Return flights

02 Sep - 09 Sep Alaska Airlines
09 Sep - 16 Sep Alaska Airlines
04 Sep - 11 Sep Alaska Airlines
08 Sep - 13 Sep Fiji Airways
01 Sep - 15 Sep Fiji Airways
10 Sep - 18 Sep Fiji Airways
26 Sep - 24 Oct Fiji Airways
01 Sep - 30 Sep Fiji Airways
05 Sep - 03 Oct Fiji Airways
16 Sep - 30 Sep Air New Zealand
01 Sep - 08 Sep Air New Zealand
17 Sep - 24 Sep Air New Zealand
26 Sep - 06 Oct Air New Zealand
05 Sep - 04 Oct Air New Zealand
26 Sep - 24 Oct WestJet direct
05 Sep - 03 Oct WestJet direct
05 Sep - 04 Oct Delta direct
26 Sep - 06 Oct Qantas direct

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

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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