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

One-Way flights

13 Dec	LATAM Airlines Group
05 Dec	LATAM Airlines Group
06 Dec	LATAM Airlines Group
01 Dec	LATAM Airlines Group
03 Dec	LATAM Airlines Group
05 Dec	LATAM Airlines Group	direct
02 Dec	LATAM Airlines Group	direct
06 Dec	LATAM Airlines Group	direct
01 Dec	LATAM Airlines Group	direct
08 Dec	LATAM Airlines Group	direct

Also check the deals for return 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 one-way flights from Santiago to Sydney in December from $1227

One-Way flights