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

Return flights

27 Sep - 15 Oct	Fiji Airways
19 Sep - 05 Oct	Fiji Airways
28 Sep - 01 Oct	Fiji Airways
19 Sep - 26 Sep	Fiji Airways
18 Sep - 04 Oct	Fiji Airways
30 Sep - 07 Oct	Fiji Airways
18 Sep - 03 Oct	Fiji Airways
17 Sep - 01 Oct	Philippine Airlines
19 Sep - 28 Sep	Philippine Airlines
17 Sep - 07 Oct	Philippine Airlines
21 Sep - 28 Sep	Fiji Airways
27 Sep - 09 Oct	Qantas
17 Sep - 01 Oct	Qantas	direct
19 Sep - 28 Sep	United	direct

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

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 Melbourne in September from $891

Return flights