AirHint found the following cheapest return flights from Athens (ATH) to San Jose (SJO) in August 2025 (see full year).

Return flights

14 Aug - 24 Aug	SWISS
15 Aug - 24 Aug	SWISS
06 Aug - 25 Aug	United
08 Aug - 22 Aug	Ryanair
15 Aug - 25 Aug	United
01 Aug - 13 Aug	United
10 Aug - 17 Aug	Wizz Air Malta
09 Aug - 23 Aug	Air Canada
02 Aug - 14 Aug	Norse Atlantic Airways
22 Aug - 25 Aug	Air Canada

Also check the deals for one-way flights from Athens 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 return flights from Athens to San Jose in August from 901€

Return flights