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

Return flights

01 Mar - 10 Mar	Lufthansa
03 Mar - 17 Mar	United
01 Mar - 16 Mar	United
03 Mar - 16 Mar	United
01 Mar - 25 Mar	United
02 Mar - 16 Mar	United
05 Mar - 19 Mar	United
05 Mar - 16 Mar	United
04 Mar - 23 Mar	United
03 Mar - 21 Apr	United
09 Mar - 19 Mar	United
23 Mar - 15 Apr	KLM
24 Mar - 16 Apr	KLM
15 Mar - 15 Apr	KLM
24 Mar - 24 Apr	United
31 Mar - 25 Apr	Air France
31 Mar - 15 Apr	Air France
31 Mar - 16 Apr	Air France
29 Mar - 16 Apr	Air France
24 Mar - 07 Apr	KLM

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 559€

Return flights