AirHint found the following cheapest return flights from Guatemala City (GUA) to San Salvador (SAL) in September 2025 (see full year).
Return flights
| 28 Sep - 08 Oct | Volaris El Salvador | direct | |
| 29 Sep - 06 Oct | Avianca | direct | |
| 11 Sep - 22 Sep | Avianca | direct | |
| 04 Sep - 07 Sep | Avianca | direct |
Also check the deals for one-way flights from Guatemala City 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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