AirHint found the following cheapest return flights from San Jose (SJO) to Guatemala City (GUA) in September 2026 (see full year).
Return flights
| 12 Sep - 16 Sep | Avianca | direct | |
| 25 Sep - 29 Sep | Avianca | direct | |
| 28 Sep - 11 Oct | Avianca | direct | |
| 12 Sep - 15 Sep | Avianca | direct |
Also check the deals for one-way flights from San Jose to Guatemala City in September.
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