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

Return flights

23 Aug - 26 Aug	United	direct
14 Aug - 28 Aug	United	direct
15 Aug - 29 Aug	United	direct
15 Aug - 28 Aug	United	direct
30 Aug - 06 Sep	United	direct
21 Aug - 04 Sep	United	direct
29 Aug - 12 Sep	United	direct
25 Aug - 08 Sep	United	direct
26 Aug - 09 Sep	United	direct
27 Aug - 10 Sep	United	direct
30 Aug - 08 Sep	United	direct
20 Aug - 24 Sep	United	direct
27 Aug - 24 Sep	United	direct
21 Aug - 25 Aug	Avianca	direct
16 Aug - 30 Aug	Avianca	direct
23 Aug - 30 Aug	Avianca	direct
14 Aug - 18 Aug	Avianca	direct
02 Aug - 14 Aug	United	direct
05 Aug - 19 Aug	United	direct
30 Aug - 13 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