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

Return flights

05 Dec - 13 Dec	Lufthansa
15 Dec - 10 Jan	Air Canada
26 Dec - 17 Jan	British Airways
16 Dec - 10 Jan	British Airways
25 Dec - 05 Jan	Lufthansa
24 Dec - 06 Jan	United
18 Dec - 10 Jan	Frontier Airlines
22 Dec - 26 Dec	Scandinavian Airlines
18 Dec - 28 Dec	WestJet
11 Dec - 03 Jan	Frontier Airlines
20 Dec - 06 Jan	Frontier Airlines
14 Dec - 03 Jan	Hawaiian Airlines
19 Dec - 10 Jan	Frontier Airlines
19 Dec - 28 Dec	Frontier Airlines
20 Dec - 29 Dec	Frontier Airlines

Also check the deals for one-way flights from San Francisco to Geneva 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 Geneva in December from 426€

Return flights