AirHint found the following cheapest one-way flights from Washington (IAD) to San Salvador (SAL) in September 2026 (see full year).
One-Way flights
| 18 Sep | Volaris El Salvador | direct | |
| 09 Sep | Volaris El Salvador | direct | |
| 02 Sep | Copa | ||
| 04 Sep | Copa | ||
| 06 Sep | Copa | ||
| 07 Sep | Copa |
Also check the deals for return flights from Washington to San Salvador in September.
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