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

Return flights

12 Apr - 26 Apr	Air Canada
07 Apr - 22 Apr	Air Canada
10 Apr - 26 Apr	Air Canada
11 Apr - 26 Apr	Air Canada
11 Apr - 21 Apr	Air Canada
25 Apr - 05 May	United
23 Apr - 02 May	KLM
23 Apr - 03 May	United
13 Apr - 30 Apr	KLM
09 Apr - 23 Apr	KLM
07 Apr - 21 Apr	United
20 Apr - 30 Apr	KLM
17 Apr - 03 May	Air Canada
09 Apr - 25 Apr	United
17 Apr - 17 May	KLM
23 Apr - 09 May	Air Canada
25 Apr - 05 May	Lufthansa	direct
23 Apr - 09 May	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt to San Jose in April.

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 April from $592

Return flights