Cheapest return ATH–SJO flights, August

AirHint found the following cheapest return flights from Athens (ATH) to San Jose (SJO) in August 2026 (see full year).

Return flights

26 Aug - 13 Sep United
10 Aug - 18 Aug Air Canada
07 Aug - 21 Aug Air Transat
13 Aug - 19 Aug Air Canada
12 Aug - 20 Aug Air France
15 Aug - 29 Aug KLM
17 Aug - 31 Aug Air Canada
03 Aug - 14 Aug Air Canada
07 Aug - 20 Aug Air Canada
01 Aug - 15 Aug Air Canada
01 Aug - 22 Aug Air Canada

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

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