AirHint found the following cheapest return flights from San Francisco (SFO) to San Salvador (SAL) in October 2025 (see full year).
Return flights
| 23 Oct - 27 Oct | United | ||
| 19 Oct - 20 Oct | United | ||
| 18 Oct - 25 Oct | United | ||
| 19 Oct - 26 Oct | United | ||
| 16 Oct - 21 Oct | Alaska Airlines | ||
| 19 Oct - 20 Oct | Avianca | direct | |
| 16 Oct - 24 Oct | Avianca | direct |
Also check the deals for one-way flights from San Francisco to San Salvador in October.
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