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

Return flights

30 Sep - 02 Oct	Spirit Airlines
23 Sep - 28 Sep	Spirit Airlines
23 Sep - 02 Oct	Spirit Airlines
22 Sep - 24 Sep	United
25 Sep - 28 Sep	Spirit Airlines
25 Sep - 02 Oct	Spirit Airlines
21 Sep - 28 Sep	Spirit Airlines
21 Sep - 02 Oct	Spirit Airlines
23 Sep - 24 Sep	Copa
16 Sep - 23 Sep	Copa
26 Sep - 02 Oct	United
26 Sep - 08 Oct	Avianca	direct
29 Sep - 03 Oct	Avianca	direct
26 Sep - 01 Oct	Avianca	direct
26 Sep - 29 Sep	Frontier Airlines
21 Sep - 23 Sep	Spirit Airlines
26 Sep - 28 Sep	Spirit Airlines
25 Sep - 29 Sep	Spirit Airlines
26 Sep - 02 Oct	Avianca	direct
22 Sep - 02 Oct	Spirit Airlines

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 171€

Return flights