Cheapest return flights from Washington to San Salvador in May from $260

AirHint found the following cheapest return flights from Washington (IAD) to San Salvador (SAL) in May 2026 (see full year).

Return flights

27 May - 03 Jun United
17 May - 23 May United
05 May - 19 May Avianca direct
15 May - 18 May Frontier Airlines
26 May - 30 May United direct
11 May - 26 May United
27 May - 31 May United
24 May - 27 May United direct
14 May - 20 May Avianca direct
14 May - 25 May United
03 May - 11 May Delta
25 May - 06 Jun Avianca direct
21 May - 02 Jun United direct
22 May - 01 Jun United direct
29 May - 05 Jun United direct
23 May - 29 Jun Avianca direct
21 May - 05 Jun United direct

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

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