Cheapest return flights from San Salvador to Washington in September from $224

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

Return flights

11 Sep - 18 Sep Avianca direct
16 Sep - 16 Oct Avianca
19 Sep - 23 Sep Avianca direct
10 Sep - 23 Sep Avianca direct
13 Sep - 21 Sep Volaris El Salvador direct
14 Sep - 24 Sep Volaris El Salvador direct
10 Sep - 17 Sep Avianca direct
10 Sep - 14 Sep Volaris El Salvador direct
17 Sep - 15 Oct Avianca direct
18 Sep - 29 Sep Avianca direct
25 Sep - 20 Oct Copa
26 Sep - 29 Sep Copa
11 Sep - 15 Sep Avianca direct
29 Sep - 20 Oct Copa

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

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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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