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

Return flights

10 Sep - 30 Sep	TAP
11 Sep - 26 Sep	Vueling Airlines
13 Sep - 30 Sep	easyJet
16 Sep - 16 Oct	easyJet
11 Sep - 30 Sep	easyJet
08 Sep - 21 Sep	easyJet
04 Sep - 30 Sep	easyJet
19 Sep - 27 Sep	United
07 Sep - 15 Sep	United
07 Sep - 16 Sep	United
07 Sep - 20 Sep	Vueling Airlines

Also check the deals for one-way flights from Geneva 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 Geneva to San Jose in September from 667€

Return flights