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

Return flights

28 Dec - 11 Jan	Scandinavian Airlines
31 Dec - 14 Jan	Scandinavian Airlines
08 Dec - 15 Dec	United	direct
01 Dec - 15 Dec	Air France
01 Dec - 01 Jan	Scandinavian Airlines
05 Dec - 31 Dec	British Airways
31 Dec - 14 Jan	SWISS	direct
05 Dec - 31 Dec	SWISS	direct
18 Dec - 25 Dec	United	direct
01 Dec - 01 Jan	SWISS	direct
01 Dec - 15 Dec	SWISS	direct
28 Dec - 11 Jan	SWISS	direct
23 Dec - 30 Dec	British Airways
28 Dec - 04 Jan	United
23 Dec - 30 Dec	SWISS	direct
20 Dec - 25 Dec	Scandinavian Airlines
20 Dec - 04 Jan	Aer Lingus
20 Dec - 03 Jan	Scandinavian Airlines
19 Dec - 03 Jan	Scandinavian Airlines

Also check the deals for one-way flights from San Francisco 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 Francisco to Zurich in December from 484€

Return flights