Cheapest return flights from Boston to San Salvador in December from 270€

AirHint found the following cheapest return flights from Boston (BOS) to San Salvador (SAL) in December 2025 (see full year).

Return flights

08 Dec - 19 Dec Spirit Airlines
08 Dec - 24 Dec Spirit Airlines
08 Dec - 17 Dec Spirit Airlines
08 Dec - 18 Dec Spirit Airlines
08 Dec - 21 Dec Spirit Airlines
08 Dec - 22 Dec Spirit Airlines
12 Dec - 19 Dec Spirit Airlines
12 Dec - 24 Dec Spirit Airlines
12 Dec - 17 Dec Spirit Airlines
12 Dec - 18 Dec Spirit Airlines
31 Dec - 15 Jan Spirit Airlines
30 Dec - 16 Jan Spirit Airlines
29 Dec - 06 Jan Frontier Airlines
31 Dec - 01 Jan Spirit Airlines
29 Dec - 15 Jan Spirit Airlines
12 Dec - 01 Jan Spirit Airlines
11 Dec - 01 Jan Spirit Airlines
31 Dec - 11 Jan Spirit Airlines
31 Dec - 05 Jan Spirit Airlines
15 Dec - 01 Jan Spirit Airlines

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

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