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

Return flights

04 Dec - 05 Jan	Qantas	direct
05 Dec - 05 Jan	Qantas	direct
05 Dec - 27 Jan	Qantas	direct
09 Dec - 05 Jan	Qantas	direct
05 Dec - 10 Jan	Qantas	direct
05 Dec - 09 Jan	Qantas	direct
04 Dec - 11 Jan	Qantas	direct
02 Dec - 13 Jan	Qantas	direct
05 Dec - 30 Dec	LATAM Airlines Group
05 Dec - 28 Dec	Qantas	direct
05 Dec - 02 Jan	Qantas
01 Dec - 08 Jan	LATAM Airlines Group
05 Dec - 09 Dec	Qantas	direct
03 Dec - 13 Dec	LATAM Airlines Group
02 Dec - 06 Dec	LATAM Airlines Group
19 Dec - 22 Dec	LATAM Airlines Group
17 Dec - 24 Dec	LATAM Airlines Group
11 Dec - 16 Dec	LATAM Airlines Group
11 Dec - 18 Dec	LATAM Airlines Group
19 Dec - 22 Dec	LATAM Airlines Group	direct

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 $1588

Return flights