Cheapest return flights from Boston to San Salvador in January from 201€

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

Return flights

21 Jan - 04 Feb Frontier Airlines
21 Jan - 21 Jan Frontier Airlines
24 Jan - 07 Feb Spirit Airlines
20 Jan - 24 Feb Spirit Airlines
20 Jan - 22 Jan Spirit Airlines
27 Jan - 01 Feb Spirit Airlines
26 Jan - 02 Feb Spirit Airlines
20 Jan - 03 Feb Spirit Airlines
29 Jan - 01 Feb Spirit Airlines
20 Jan - 01 Feb Spirit Airlines
21 Jan - 04 Feb Avianca direct
16 Jan - 21 Jan Frontier Airlines
13 Jan - 22 Jan Spirit Airlines
22 Jan - 01 Feb Spirit Airlines
12 Jan - 23 Jan Copa
20 Jan - 21 Jan Spirit Airlines
22 Jan - 25 Jan Spirit Airlines
20 Jan - 25 Jan Spirit Airlines
11 Jan - 21 Jan Copa
14 Jan - 21 Jan Copa

Also check the deals for one-way 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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