AirHint found the following cheapest return flights from Boston (BOS) to San Salvador (SAL) in February 2026 (see full year).

Return flights

19 Feb - 24 Feb	Spirit Airlines
01 Feb - 08 Feb	Spirit Airlines
19 Feb - 22 Feb	Spirit Airlines
25 Feb - 31 Mar	United
25 Feb - 04 Mar	United
19 Feb - 26 Feb	Spirit Airlines
23 Feb - 01 Mar	Spirit Airlines
06 Feb - 18 Feb	United
18 Feb - 28 Feb	Spirit Airlines
19 Feb - 01 Mar	Spirit Airlines
18 Feb - 27 Feb	Spirit Airlines
06 Feb - 22 Feb	Frontier Airlines
19 Feb - 10 Mar	Spirit Airlines
20 Feb - 26 Feb	Avianca
20 Feb - 23 Feb	United
15 Feb - 01 Mar	Spirit Airlines

Also check the deals for one-way flights from Boston to San Salvador in February.

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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Cheapest return flights from Boston to San Salvador in February from 208€

Return flights