AirHint found the following cheapest return flights from Houston (IAH) to San Salvador (SAL) in August 2025 (see full year).

Return flights

14 Aug - 19 Aug	United	direct
13 Aug - 19 Aug	United	direct
12 Aug - 26 Aug	United	direct
14 Aug - 28 Aug	United	direct
21 Aug - 28 Aug	United	direct
23 Aug - 28 Aug	United	direct
27 Aug - 24 Sep	United	direct
20 Aug - 24 Sep	United	direct
27 Aug - 10 Sep	United	direct
31 Aug - 14 Sep	United	direct
30 Aug - 08 Sep	United	direct
20 Aug - 23 Aug	Avianca	direct
27 Aug - 30 Aug	Avianca	direct
18 Aug - 30 Aug	Avianca	direct
11 Aug - 22 Aug	Avianca	direct
24 Aug - 07 Sep	United	direct
29 Aug - 12 Sep	United	direct
30 Aug - 07 Sep	Avianca
28 Aug - 07 Sep	Avianca
23 Aug - 06 Sep	United	direct

Also check the deals for one-way flights from Houston to San Salvador in August.

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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Cheapest return flights from Houston to San Salvador in August from 157€

Return flights