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

Return flights

04 Dec - 11 Dec	Spirit Airlines
05 Dec - 13 Dec	Spirit Airlines
01 Dec - 08 Dec	Copa
03 Dec - 10 Dec	Copa
05 Dec - 12 Dec	Copa
06 Dec - 13 Dec	Copa
07 Dec - 14 Dec	Copa
08 Dec - 15 Dec	Copa
11 Dec - 26 Jan	United
04 Dec - 11 Dec	LATAM Airlines Group	direct
01 Dec - 08 Dec	LATAM Airlines Group	direct
29 Dec - 14 Jan	LATAM Airlines Group
29 Dec - 13 Jan	LATAM Airlines Group
29 Dec - 12 Jan	Spirit Airlines
15 Dec - 14 Jan	Spirit Airlines
29 Dec - 11 Jan	Spirit Airlines
15 Dec - 11 Jan	Frontier Airlines
29 Dec - 10 Jan	Spirit Airlines
27 Dec - 10 Jan	Frontier Airlines
30 Dec - 08 Jan	Spirit Airlines

Also check the deals for one-way flights from Los Angeles 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 Los Angeles to Santiago in December from $606

Return flights