Cheapest return flights from Boston to San Salvador in September from $286

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

Return flights

28 Sep - 08 Oct Copa
30 Sep - 07 Oct United
30 Sep - 10 Oct Copa
22 Sep - 29 Sep Copa
19 Sep - 25 Sep Copa
22 Sep - 29 Sep Avianca direct
26 Sep - 05 Oct Avianca
26 Sep - 29 Sep Avianca direct
26 Sep - 05 Oct Avianca direct

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

Skyscanner

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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