AirHint found the following cheapest return flights from Boston (BOS) to San Salvador (SAL) in July 2026 (see full year).
Return flights
| 29 Jul - 18 Aug | United | ||
| 28 Jul - 18 Aug | Spirit Airlines | ||
| 24 Jul - 02 Aug | Copa | ||
| 23 Jul - 09 Aug | Spirit Airlines | ||
| 07 Jul - 23 Jul | Avianca | direct |
Also check the deals for one-way flights from Boston to San Salvador in July.
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