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

Return flights

01 Dec - 23 Dec	Air Canada
02 Dec - 22 Dec	Air Canada
01 Dec - 08 Dec	Air Canada
01 Dec - 25 Dec	Air Canada
08 Dec - 13 Jan	Air Canada
09 Dec - 16 Dec	Air Canada
09 Dec - 17 Dec	Air Canada
09 Dec - 21 Jan	Air Canada
09 Dec - 20 Jan	Air Canada
09 Dec - 23 Jan	United
25 Dec - 30 Jan	United
25 Dec - 26 Jan	United
24 Dec - 31 Dec	Jetstar
02 Dec - 22 Dec	LATAM Airlines Group	direct
29 Dec - 30 Jan	United
10 Dec - 20 Jan	Turkish Airlines
23 Dec - 30 Jan	Turkish Airlines
24 Dec - 30 Jan	Turkish Airlines
09 Dec - 31 Dec	United
06 Dec - 13 Dec	LATAM Airlines Group

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 $1497

Return flights