AirHint found the following cheapest return flights from Berlin (BER) to San Jose (SJO) in September 2025 (see full year).

Return flights

11 Sep - 24 Sep	Air France
16 Sep - 01 Oct	SWISS
10 Sep - 02 Oct	Air France
18 Sep - 03 Oct	Lufthansa
16 Sep - 26 Sep	SWISS
19 Sep - 03 Oct	SWISS
16 Sep - 23 Sep	United
09 Sep - 24 Sep	Air France
17 Sep - 26 Sep	United
17 Sep - 01 Oct	United
22 Sep - 26 Sep	SWISS
12 Sep - 24 Sep	Air France
14 Sep - 28 Sep	Condor
15 Sep - 19 Sep	Lufthansa
08 Sep - 24 Sep	KLM
26 Sep - 10 Oct	SWISS
18 Sep - 02 Oct	United
20 Sep - 03 Oct	Ryanair
27 Sep - 09 Oct	Ryanair
23 Sep - 14 Oct	Lufthansa

Also check the deals for one-way flights from Berlin to San Jose in September.

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 Berlin to San Jose in September from 544€

Return flights