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

Return flights

11 Sep - 28 Sep	easyJet
15 Sep - 28 Sep	easyJet
08 Sep - 22 Sep	easyJet
12 Sep - 22 Sep	easyJet
12 Sep - 21 Sep	easyJet
24 Sep - 08 Oct	Air Canada
19 Sep - 28 Sep	Air Canada
19 Sep - 26 Sep	Air Canada
03 Sep - 03 Oct	Air France
17 Sep - 24 Sep	Air France
17 Sep - 26 Sep	Air France
21 Sep - 29 Oct	Air France
10 Sep - 19 Sep	United
19 Sep - 04 Oct	United
27 Sep - 10 Oct	United
26 Sep - 03 Oct	United
26 Sep - 10 Oct	United
20 Sep - 29 Oct	United
20 Sep - 04 Oct	SWISS
27 Sep - 01 Oct	SWISS

Also check the deals for one-way flights from Zurich 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 Zurich to San Jose in September from $739

Return flights