AirHint found the following cheapest return flights from Newark (EWR) to Santiago (STI) in January 2026 (see full year).

Return flights

30 Jan - 10 Feb	American Airlines
11 Jan - 17 Jan	jetBlue
30 Jan - 10 Feb	United	direct
18 Jan - 21 Jan	Spirit Airlines
19 Jan - 21 Jan	Spirit Airlines
18 Jan - 20 Jan	Spirit Airlines
19 Jan - 20 Jan	Spirit Airlines
14 Jan - 21 Jan	jetBlue
16 Jan - 21 Jan	Spirit Airlines
10 Jan - 18 Jan	American Airlines
16 Jan - 20 Jan	Spirit Airlines
15 Jan - 21 Jan	Spirit Airlines

Also check the deals for one-way flights from Newark to Santiago in January.

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 January from $429

Return flights