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

Return flights

22 Aug - 17 Sep	Air Canada
20 Aug - 17 Sep	Air Canada
21 Aug - 17 Sep	Air Canada
19 Aug - 17 Sep	Air Canada
23 Aug - 17 Sep	Air Canada
20 Aug - 11 Sep	United
21 Aug - 11 Sep	Brussels Airlines
12 Aug - 23 Sep	United
21 Aug - 04 Sep	Brussels Airlines
12 Aug - 09 Sep	United
21 Aug - 28 Aug	United
12 Aug - 28 Aug	United
15 Aug - 18 Aug	United
16 Aug - 28 Aug	United
12 Aug - 27 Aug	United
16 Aug - 19 Aug	United
12 Aug - 26 Aug	United
18 Aug - 26 Aug	United
15 Aug - 22 Aug	United
14 Aug - 28 Aug	United

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Frankfurt to San Jose in August from 520€

Return flights