Cheapest one-way flights from Boston to San Salvador in January from 78€

AirHint found the following cheapest one-way flights from Boston (BOS) to San Salvador (SAL) in January 2026 (see full year).

One-Way flights

18 Jan United
30 Jan United
21 Jan Frontier Airlines
15 Jan Spirit Airlines
19 Jan Frontier Airlines
18 Jan Avianca direct
21 Jan Avianca direct
16 Jan Frontier Airlines
16 Jan Avianca direct
02 Jan Spirit Airlines

Also check the deals for return flights from Boston to San Salvador in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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