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

Return flights

09 Sep - 23 Sep	Lufthansa
25 Sep - 09 Oct	Air Canada
03 Sep - 24 Sep	SWISS
16 Sep - 26 Sep	Air Canada
13 Sep - 25 Sep	Air France
13 Sep - 27 Sep	Air Canada
15 Sep - 21 Sep	United
03 Sep - 10 Sep	United
04 Sep - 20 Sep	Air Canada
01 Sep - 14 Sep	Austrian Airlines
07 Sep - 19 Sep	United

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 $690

Return flights