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

One-Way flights

14 Aug	Volaris El Salvador	direct
22 Aug	United	direct
09 Aug	United	direct
20 Aug	United	direct
05 Aug	Avianca	direct
15 Aug	United	direct
08 Aug	United	direct
31 Aug	United	direct
03 Aug	United	direct
29 Aug	Avianca	direct

Also check the deals for return 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 one-way flights from Houston to San Salvador in August from 57€

One-Way flights