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

Return flights

04 Dec - 08 Dec	Avianca	direct
04 Dec - 10 Dec	Avianca	direct
04 Dec - 07 Dec	Copa
11 Dec - 15 Dec	Copa
03 Dec - 09 Dec	United	direct
09 Dec - 14 Dec	Spirit Airlines
02 Dec - 07 Dec	Spirit Airlines
06 Dec - 13 Dec	Copa
11 Dec - 28 Dec	Copa
12 Dec - 15 Dec	Spirit Airlines
13 Dec - 11 Jan	Frontier Airlines
14 Dec - 18 Jan	Spirit Airlines
13 Dec - 17 Jan	Copa
30 Dec - 09 Jan	Copa
25 Dec - 25 Jan	Avianca
25 Dec - 26 Jan	Spirit Airlines
13 Dec - 10 Jan	Frontier Airlines
27 Dec - 11 Jan	Spirit Airlines
23 Dec - 23 Jan	Spirit Airlines
22 Dec - 22 Jan	Spirit Airlines

Also check the deals for one-way flights from New York to San Salvador 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 San Salvador in December from 158€

Return flights