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

Return flights

08 Dec - 27 Dec	Delta
15 Dec - 14 Jan	LATAM Airlines Group
09 Dec - 07 Jan	Spirit Airlines
10 Dec - 08 Jan	Spirit Airlines
04 Dec - 08 Jan	Spirit Airlines
05 Dec - 08 Jan	Spirit Airlines
15 Dec - 13 Jan	LATAM Airlines Group
03 Dec - 09 Jan	Spirit Airlines
28 Dec - 12 Jan	United
13 Dec - 19 Dec	Delta
15 Dec - 12 Jan	LATAM Airlines Group
16 Dec - 15 Jan	LATAM Airlines Group
18 Dec - 27 Dec	Spirit Airlines
20 Dec - 27 Dec	Spirit Airlines

Also check the deals for one-way flights from New York 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 New York to Santiago in December from 643€

Return flights