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

Return flights

03 Dec - 10 Dec	United
08 Dec - 15 Dec	United
12 Dec - 21 Dec	Iberia
21 Dec - 30 Dec	British Airways
22 Dec - 30 Dec	British Airways
22 Dec - 29 Dec	British Airways
21 Dec - 28 Dec	British Airways
23 Dec - 30 Dec	United
16 Dec - 06 Jan	Delta
13 Dec - 20 Dec	United
26 Dec - 02 Jan	Iberia
28 Dec - 04 Jan	United
27 Dec - 03 Jan	Iberia For Level
18 Dec - 25 Dec	United

Also check the deals for one-way flights from Boston 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 Boston to Geneva in December from 317€

Return flights