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

Return flights

22 Aug - 27 Aug	Avianca
25 Aug - 08 Sep	Frontier Airlines
21 Aug - 03 Sep	Avianca
20 Aug - 27 Aug	Avianca
27 Aug - 30 Aug	Frontier Airlines
24 Aug - 01 Sep	LATAM Airlines Group	direct
16 Aug - 20 Aug	Avianca
20 Aug - 27 Aug	LATAM Airlines Group	direct
06 Aug - 13 Aug	LATAM Airlines Group
16 Aug - 24 Aug	LATAM Airlines Group	direct
09 Aug - 13 Aug	Avianca
27 Aug - 30 Aug	LATAM Airlines Group	direct
22 Aug - 31 Aug	Avianca
21 Aug - 03 Sep	Delta	direct
30 Aug - 05 Sep	Delta

Also check the deals for one-way flights from New York to Santiago in August.

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 August from $624

Return flights