AirHint found the following cheapest return flights from Sydney (SYD) to Los Angeles (LAX) in December 2026 (see full year).

Return flights

10 Dec - 01 Jan	Air Canada
03 Dec - 08 Dec	Air Canada
10 Dec - 20 Dec	Air Canada
11 Dec - 01 Jan	Air Canada
01 Dec - 22 Dec	Air Canada
23 Dec - 04 Jan	ANA
22 Dec - 06 Jan	Asiana Airlines
24 Dec - 07 Jan	Asiana Airlines
24 Dec - 02 Jan	Asiana Airlines
03 Dec - 08 Dec	Qantas	direct
14 Dec - 01 Jan	Asiana Airlines
18 Dec - 05 Jan	Asiana Airlines
18 Dec - 31 Dec	Asiana Airlines
19 Dec - 05 Jan	Asiana Airlines
19 Dec - 02 Jan	Asiana Airlines
18 Dec - 31 Dec	Qantas	direct

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

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 Sydney to Los Angeles in December from $999

Return flights