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

Return flights

06 Dec - 08 Dec	Spirit Airlines
06 Dec - 12 Dec	Spirit Airlines
05 Dec - 08 Dec	Spirit Airlines
31 Dec - 17 Jan	Spirit Airlines
07 Dec - 14 Dec	Spirit Airlines
01 Dec - 15 Dec	Frontier Airlines
01 Dec - 17 Dec	United
11 Dec - 26 Dec	Spirit Airlines
11 Dec - 18 Dec	United
06 Dec - 19 Dec	United
11 Dec - 27 Dec	United
10 Dec - 19 Jan	American Airlines
13 Dec - 23 Jan	United
12 Dec - 17 Jan	Spirit Airlines
27 Dec - 11 Jan	Air Canada
24 Dec - 02 Jan	Air Canada
25 Dec - 08 Jan	Spirit Airlines
13 Dec - 04 Jan	Spirit Airlines
12 Dec - 04 Jan	Spirit Airlines
25 Dec - 02 Jan	Spirit Airlines

Also check the deals for one-way flights from Newark 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 Newark to Santiago in December from $511

Return flights