AirHint found the following cheapest return flights from Guatemala City (GUA) to San Jose (SJO) in April 2026 (see full year).
Return flights
| 09 Apr - 13 Apr | Volaris Costa Rica | direct | |
| 01 Apr - 05 Apr | Volaris Costa Rica | direct | |
| 30 Apr - 03 May | Copa | direct | |
| 14 Apr - 17 Apr | Copa | direct | |
| 28 Apr - 01 May | Copa | direct |
Also check the deals for one-way flights from Guatemala City to San Jose in April.
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