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

Return flights

07 Mar - 17 Mar	Air Canada
17 Mar - 16 Apr	KLM
14 Mar - 11 Apr	Air France
03 Mar - 10 Mar	United
02 Mar - 10 Mar	United
24 Mar - 28 Apr	KLM
03 Mar - 21 Apr	United
24 Mar - 07 Apr	United
17 Mar - 07 Apr	United
10 Mar - 23 Mar	Air Canada
17 Mar - 28 Mar	KLM
16 Mar - 31 Mar	KLM
11 Mar - 25 Mar	KLM
16 Mar - 24 Mar	KLM
09 Mar - 25 Mar	Air France
10 Mar - 28 Mar	KLM
19 Mar - 16 Apr	Air France
31 Mar - 11 Apr	KLM
24 Mar - 17 Apr	KLM
30 Mar - 11 Apr	Air France

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

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 March from 608€

Return flights