Cheapest return flights from Los Angeles to Sydney in September from $782

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 - 14 Sep Alaska Airlines
09 Sep - 18 Sep Alaska Airlines
24 Sep - 08 Oct ANA
03 Sep - 23 Sep Air Canada
06 Sep - 14 Sep Air Canada
06 Sep - 04 Oct Air Canada
09 Sep - 21 Sep Air Canada
09 Sep - 23 Sep Air Canada
14 Sep - 05 Oct Air Canada
07 Sep - 13 Sep Air Canada
28 Sep - 15 Oct ANA
15 Sep - 28 Sep Fiji Airways
15 Sep - 03 Oct Air Canada
04 Sep - 20 Sep Air Canada
04 Sep - 23 Sep Air Canada
29 Sep - 26 Oct Philippine Airlines
29 Sep - 26 Oct Delta direct
15 Sep - 03 Oct Delta direct
06 Sep - 04 Oct United 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.

Book a cheap hotel in Sydney

Cheap car rent in Sydney