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

Return flights

26 Sep - 28 Sep	Avianca	direct
21 Sep - 28 Sep	Avianca	direct
24 Sep - 27 Sep	Avianca	direct
06 Sep - 13 Sep	Avianca	direct
22 Sep - 25 Sep	Avianca	direct
19 Sep - 21 Sep	Avianca	direct
05 Sep - 14 Sep	Avianca	direct
19 Sep - 29 Sep	Avianca	direct
26 Sep - 04 Oct	Avianca	direct
13 Sep - 18 Sep	Avianca	direct
09 Sep - 19 Sep	Avianca	direct
28 Sep - 05 Oct	Avianca	direct
28 Sep - 31 Oct	Avianca	direct
27 Sep - 04 Oct	Avianca	direct
12 Sep - 04 Oct	Avianca	direct
30 Sep - 07 Oct	Copa
30 Sep - 07 Oct	Avianca	direct

Also check the deals for one-way flights from New York to San Salvador in September.

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 September from 151€

Return flights