Cheapest return flights from San Francisco to San Salvador in September from $381

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

Return flights

07 Sep - 01 Oct American Airlines
29 Sep - 09 Oct Avianca direct
08 Sep - 22 Sep Frontier Airlines
20 Sep - 23 Sep United
25 Sep - 01 Oct United
11 Sep - 17 Sep Frontier Airlines
30 Sep - 14 Oct Aeromexico
11 Sep - 16 Sep Frontier Airlines
05 Sep - 29 Sep American Airlines
30 Sep - 14 Oct Avianca direct
20 Sep - 29 Sep American Airlines
20 Sep - 29 Sep Avianca direct
07 Sep - 01 Oct Avianca direct
20 Sep - 23 Sep Avianca direct
08 Sep - 22 Sep Avianca direct
05 Sep - 29 Sep Avianca direct
24 Sep - 03 Oct Delta
25 Sep - 01 Oct Avianca direct

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

Skyscanner

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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