Cheapest return flights from Athens to San Jose in September from $641

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

Return flights

19 Sep - 11 Oct SWISS
16 Sep - 08 Oct Air Canada
19 Sep - 09 Oct Air Canada
25 Sep - 05 Oct Air Canada
01 Sep - 07 Sep KLM

Also check the deals for one-way flights from Athens to San Jose in September.

Skyscanner

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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