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

Return flights

20 Aug - 28 Aug	Air Canada
07 Aug - 24 Aug	Air Canada
16 Aug - 31 Aug	Delta
08 Aug - 23 Aug	Norse Atlantic Airways
02 Aug - 15 Aug	Air Canada
05 Aug - 12 Aug	KLM
02 Aug - 16 Aug	Air Canada
11 Aug - 19 Aug	Ryanair
13 Aug - 21 Aug	KLM
01 Aug - 10 Aug	United

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 $963

Return flights