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

Return flights

30 Dec - 26 Jan	United
31 Dec - 12 Jan	United
27 Dec - 01 Jan	Jetstar
31 Dec - 06 Jan	United
30 Dec - 05 Jan	United
24 Dec - 01 Jan	Jetstar
26 Dec - 31 Jan	Jetstar
25 Dec - 31 Dec	LATAM Airlines Group
25 Dec - 01 Jan	Qantas	direct
30 Dec - 05 Jan	Qantas	direct
25 Dec - 31 Dec	LATAM Airlines Group	direct
26 Dec - 30 Dec	Qantas	direct
31 Dec - 07 Jan	United
24 Dec - 28 Dec	Jetstar
24 Dec - 28 Dec	LATAM Airlines Group	direct

Also check the deals for one-way flights from Sydney to Santiago 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 Santiago in December from $1951

Return flights