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

Return flights

18 May - 07 Jun	Air France
23 May - 05 Jun	Air France
16 May - 05 Jun	Air France
18 May - 05 Jun	Air France
13 May - 25 May	Air Canada
24 May - 13 Jun	SWISS
24 May - 31 May	Air France
03 May - 17 May	Air France
09 May - 09 Jun	Lufthansa	direct
26 May - 09 Jun	Lufthansa	direct
14 May - 17 May	Air France
12 May - 28 May	United
19 May - 02 Jun	United
21 May - 02 Jun	SWISS
18 May - 02 Jun	Lufthansa
13 May - 24 May	Air Canada
02 May - 14 May	United
12 May - 23 May	Lufthansa	direct
09 May - 20 May	Lufthansa
01 May - 24 May	Air Canada

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

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 May from 535€

Return flights