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

Return flights

13 Aug - 20 Aug	Avianca	direct
15 Aug - 19 Aug	Avianca
19 Aug - 26 Aug	Avianca	direct
12 Aug - 16 Sep	Avianca	direct
07 Aug - 14 Aug	Spirit Airlines
08 Aug - 15 Aug	Avianca	direct
15 Aug - 29 Aug	Avianca	direct
31 Aug - 14 Sep	United	direct
07 Aug - 14 Aug	Avianca	direct
15 Aug - 19 Aug	United	direct
12 Aug - 19 Aug	United	direct
11 Aug - 18 Aug	United	direct
27 Aug - 24 Sep	United	direct
27 Aug - 10 Sep	United	direct
21 Aug - 04 Sep	United	direct
25 Aug - 08 Sep	United	direct
20 Aug - 02 Sep	Avianca
27 Aug - 02 Sep	Avianca
26 Aug - 09 Sep	United	direct
28 Aug - 11 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 176€

Return flights