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

Return flights

09 Dec - 16 Dec	Qantas	direct
01 Dec - 08 Dec	Qantas	direct
08 Dec - 15 Dec	Qantas	direct
06 Dec - 20 Dec	Qantas	direct
11 Dec - 25 Dec	Qantas	direct
04 Dec - 18 Dec	Air Canada
08 Dec - 16 Dec	Jetstar
11 Dec - 08 Jan	Virgin Australia
08 Dec - 12 Dec	Jetstar
11 Dec - 17 Dec	Virgin Australia
01 Dec - 13 Dec	Virgin Australia
25 Dec - 14 Jan	Air Canada
25 Dec - 08 Jan	Air Canada
25 Dec - 19 Jan	Air Canada
16 Dec - 13 Jan	Qantas
07 Dec - 22 Jan	Virgin Australia
13 Dec - 24 Jan	Qantas
12 Dec - 18 Jan	Qantas
23 Dec - 14 Jan	Qantas
22 Dec - 31 Jan	Qantas

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 557€

Return flights