AirHint found the following cheapest one-way flights from Guatemala City (GUA) to San Jose (SJO) in August 2025 (see full year).

One-Way flights

13 Aug	Volaris Costa Rica	direct
09 Aug	Volaris Costa Rica	direct
14 Aug	Volaris Costa Rica	direct
05 Aug	Volaris Costa Rica	direct
08 Aug	Volaris Costa Rica	direct
26 Aug	Volaris Costa Rica	direct
30 Aug	Volaris Costa Rica	direct
29 Aug	Volaris Costa Rica	direct
07 Aug	Volaris Costa Rica	direct
16 Aug	Volaris Costa Rica	direct

Also check the deals for return flights from Guatemala City to San Jose 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 one-way flights from Guatemala City to San Jose in August from 72€

One-Way flights