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

Return flights

11 Aug - 15 Aug	Avianca	direct
02 Aug - 04 Aug	Avianca	direct
28 Aug - 04 Sep	Avianca	direct
03 Aug - 05 Aug	Avianca	direct
14 Aug - 19 Aug	Copa
22 Aug - 29 Aug	Copa
14 Aug - 28 Aug	Copa
14 Aug - 28 Aug	Avianca	direct
01 Aug - 08 Aug	Avianca	direct
15 Aug - 16 Aug	Copa

Also check the deals for one-way flights from Guatemala City 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 Guatemala City to San Salvador in August from $232

Return flights