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

Return flights

13 Dec - 23 Jan	Frontier Airlines
03 Dec - 08 Dec	United
30 Dec - 13 Jan	Copa
03 Dec - 08 Dec	Delta	direct
12 Dec - 24 Dec	LATAM Airlines Group
10 Dec - 19 Jan	Delta
11 Dec - 12 Jan	Avianca
24 Dec - 05 Jan	LATAM Airlines Group
30 Dec - 10 Jan	Avianca
28 Dec - 05 Jan	LATAM Airlines Group
26 Dec - 09 Jan	LATAM Airlines Group
21 Dec - 11 Jan	Spirit Airlines
07 Dec - 07 Jan	Avianca
18 Dec - 25 Dec	LATAM Airlines Group
19 Dec - 27 Dec	Allegiant Air
19 Dec - 28 Dec	Delta
19 Dec - 19 Dec	Copa
19 Dec - 27 Dec	LATAM Airlines Group	direct

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 535€

Return flights