Cheapest one-way flights from Boston (BOS) to San Salvador (SAL), December

10 dates in December, from $ 270. Book in one tap, or check whether to buy now or wait.

One-wayReturn
Dates, airline, and price
Dates Airline Price
7 Dec United
7 Dec Avianca
Direct Flight
2 Dec Avianca
Direct Flight
4 Dec Avianca
Direct Flight
6 Dec Avianca
Direct Flight
30 Dec Avianca
Direct Flight
20 Dec jetBlue
25 Dec Frontier Airlines
22 Dec jetBlue
24 Dec jetBlue
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Updated Oct 11, 2026.

About these fares

These results come from our latest search across airlines for your currency. Prices change quickly and are not locked until you complete booking—always confirm the total and fare rules on the partner site.

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