Cheapest return flights from San Francisco to San Salvador in September from $330

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

Return flights

30 Sep - 14 Oct American Airlines
10 Sep - 17 Sep Copa
03 Sep - 18 Sep Copa
26 Sep - 03 Oct Frontier Airlines
26 Sep - 04 Oct Frontier Airlines
04 Sep - 17 Sep Frontier Airlines
26 Sep - 03 Oct Avianca direct
26 Sep - 04 Oct Avianca direct
03 Sep - 18 Sep Avianca direct
04 Sep - 17 Sep Avianca direct
08 Sep - 22 Sep Avianca direct
02 Sep - 16 Sep Avianca direct
30 Sep - 14 Oct Avianca direct
05 Sep - 14 Sep Avianca direct
07 Sep - 17 Sep Avianca direct
24 Sep - 02 Oct Avianca direct
03 Sep - 09 Sep Avianca direct
17 Sep - 01 Oct Avianca direct
06 Sep - 11 Oct Avianca direct
13 Sep - 12 Oct Avianca direct

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

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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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