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

Return flights

02 Dec - 02 Jan	Qantas
08 Dec - 08 Jan	Qantas
01 Dec - 13 Jan	Qantas
12 Dec - 01 Jan	Qantas
01 Dec - 31 Dec	LATAM Airlines Group
31 Dec - 29 Jan	LATAM Airlines Group	direct
31 Dec - 20 Jan	LATAM Airlines Group
15 Dec - 22 Dec	LATAM Airlines Group
10 Dec - 30 Jan	LATAM Airlines Group
05 Dec - 06 Jan	Qantas	direct
05 Dec - 02 Jan	Qantas	direct
16 Dec - 13 Jan	LATAM Airlines Group
23 Dec - 30 Dec	Qantas
04 Dec - 20 Dec	Qantas
05 Dec - 14 Dec	Qantas
11 Dec - 18 Dec	United
15 Dec - 22 Dec	LATAM Airlines Group	direct
12 Dec - 19 Dec	Qatar Airways

Also check the deals for one-way flights from Santiago to Sydney 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 Santiago to Sydney in December from 1370€

Return flights