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

Return flights

26 Sep - 03 Oct	Air Canada
24 Sep - 15 Oct	SWISS
13 Sep - 27 Sep	Air Canada
05 Sep - 12 Sep	Air Canada
11 Sep - 22 Sep	Air France
08 Sep - 17 Sep	United
23 Sep - 30 Sep	United
14 Sep - 27 Sep	KLM
01 Sep - 08 Sep	KLM
03 Sep - 17 Sep	Austrian Airlines

Also check the deals for one-way flights from Vienna 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 Vienna to San Jose in September from 605€

Return flights