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

Return flights

21 Aug - 30 Aug	Lufthansa
11 Aug - 01 Sep	Lufthansa
17 Aug - 26 Aug	Air France
18 Aug - 27 Aug	Air France
03 Aug - 14 Aug	Air Canada
03 Aug - 17 Aug	Air Canada
07 Aug - 16 Aug	SWISS
07 Aug - 22 Aug	Air Canada
06 Aug - 22 Aug	Air Canada
10 Aug - 22 Aug	Air Canada
08 Aug - 25 Aug	Lufthansa

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to San Jose in August from $1073

Return flights