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

Return flights

03 Dec - 24 Dec	Air Canada
04 Dec - 08 Jan	United
25 Dec - 09 Jan	United
05 Dec - 08 Jan	United
03 Dec - 08 Jan	United
25 Dec - 12 Jan	United
15 Dec - 09 Jan	United
05 Dec - 30 Jan	United
14 Dec - 12 Jan	United
31 Dec - 16 Jan	United
31 Dec - 30 Jan	United
10 Dec - 24 Dec	United
05 Dec - 22 Dec	United
09 Dec - 27 Dec	United
03 Dec - 19 Dec	KLM
01 Dec - 19 Dec	KLM
10 Dec - 26 Dec	KLM
05 Dec - 19 Dec	KLM
10 Dec - 26 Dec	SWISS	direct
05 Dec - 26 Dec	SWISS	direct

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 756€

Return flights