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

Return flights

19 Dec - 31 Dec	KLM
22 Dec - 01 Jan	KLM
19 Dec - 01 Jan	KLM
26 Dec - 30 Jan	SWISS	direct
26 Dec - 09 Jan	SWISS	direct
19 Dec - 29 Dec	KLM
12 Dec - 30 Jan	Air Canada
12 Dec - 30 Jan	SWISS	direct
12 Dec - 05 Jan	SWISS	direct
20 Dec - 31 Dec	Air France
23 Dec - 05 Jan	KLM
20 Dec - 01 Jan	Air France
22 Dec - 03 Jan	KLM
19 Dec - 31 Dec	SWISS	direct
19 Dec - 29 Dec	SWISS	direct
12 Dec - 17 Dec	Iberia
12 Dec - 17 Dec	SWISS	direct

Also check the deals for one-way flights from San Jose to Zurich 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 San Jose to Zurich in December from 800€

Return flights