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 - 07 Dec	Avianca	direct
08 Dec - 20 Jan	Avianca
09 Dec - 21 Jan	Avianca	direct
03 Dec - 08 Dec	Avianca	direct
03 Dec - 10 Dec	Avianca	direct
07 Dec - 20 Jan	Avianca
12 Dec - 19 Dec	Spirit Airlines
03 Dec - 22 Jan	Spirit Airlines
11 Dec - 12 Dec	Spirit Airlines
03 Dec - 07 Dec	Spirit Airlines
16 Dec - 25 Dec	Spirit Airlines
09 Dec - 12 Dec	Spirit Airlines
12 Dec - 19 Dec	Avianca	direct
02 Dec - 04 Dec	Spirit Airlines
31 Dec - 07 Jan	Avianca
08 Dec - 11 Jan	Spirit Airlines
25 Dec - 25 Jan	Avianca	direct
08 Dec - 11 Jan	Avianca	direct
25 Dec - 12 Jan	Avianca	direct
16 Dec - 14 Jan	Frontier 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 167€

Return flights