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

Return flights

07 Sep - 14 Sep	United	direct
05 Sep - 08 Sep	United	direct
07 Sep - 21 Sep	United	direct
08 Sep - 22 Sep	United	direct
10 Sep - 24 Sep	United	direct
12 Sep - 26 Sep	United	direct
13 Sep - 27 Sep	United	direct
14 Sep - 28 Sep	United	direct
03 Sep - 17 Sep	United	direct
06 Sep - 20 Sep	United	direct
30 Sep - 14 Oct	United	direct
28 Sep - 12 Oct	United	direct
29 Sep - 13 Oct	United	direct
19 Sep - 03 Oct	United	direct
20 Sep - 04 Oct	United	direct
21 Sep - 05 Oct	United	direct
22 Sep - 06 Oct	United	direct
24 Sep - 08 Oct	United	direct
26 Sep - 10 Oct	United	direct
17 Sep - 01 Oct	United	direct

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

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 September from 157€

Return flights