AirHint found the following cheapest one-way flights from Boston (BOS) to San Salvador (SAL) in February 2026 (see full year).
One-Way flights
| 05 Feb | Spirit Airlines | ||
| 06 Feb | Frontier Airlines | ||
| 06 Feb | Avianca | direct | |
| 12 Feb | Spirit Airlines |
Also check the deals for return flights from Boston to San Salvador in February.
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