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

Return flights

05 Dec - 12 Dec	easyJet
07 Dec - 14 Dec	Vueling Airlines
10 Dec - 21 Jan	easyJet
05 Dec - 30 Jan	Iberia
31 Dec - 18 Jan	British Airways
01 Dec - 28 Dec	Air Canada
15 Dec - 31 Dec	United
25 Dec - 31 Dec	United
25 Dec - 08 Jan	United
31 Dec - 31 Jan	United
31 Dec - 07 Jan	United
15 Dec - 07 Jan	United
16 Dec - 16 Jan	United
25 Dec - 07 Jan	United
15 Dec - 28 Dec	United
31 Dec - 17 Jan	United
01 Dec - 07 Dec	United
01 Dec - 23 Dec	KLM
03 Dec - 15 Dec	easyJet
14 Dec - 30 Dec	United

Also check the deals for one-way flights from Zurich to San Jose in December.

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 December from 725€

Return flights