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

Return flights

01 Dec - 05 Dec	Avianca	direct
08 Dec - 20 Jan	Avianca	direct
09 Dec - 21 Jan	Avianca	direct
04 Dec - 10 Dec	Copa
04 Dec - 07 Dec	Copa
04 Dec - 08 Dec	Avianca	direct
04 Dec - 07 Dec	Avianca	direct
03 Dec - 16 Dec	Avianca	direct
29 Dec - 15 Jan	Copa
12 Dec - 19 Dec	Copa
13 Dec - 19 Dec	Copa
12 Dec - 15 Dec	Frontier Airlines
12 Dec - 26 Dec	Copa
31 Dec - 07 Jan	Copa
15 Dec - 09 Jan	Copa
29 Dec - 12 Jan	Copa
29 Dec - 15 Jan	Avianca	direct
24 Dec - 23 Jan	Frontier Airlines
29 Dec - 12 Jan	Avianca	direct
29 Dec - 05 Jan	Copa

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 193€

Return flights