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

Return flights

11 Dec - 14 Dec	easyJet	direct
13 Dec - 21 Dec	easyJet	direct
10 Dec - 13 Dec	KLM
20 Dec - 03 Jan	easyJet	direct
21 Dec - 28 Dec	easyJet
19 Dec - 23 Dec	easyJet
27 Dec - 03 Jan	KLM
21 Dec - 28 Dec	easyJet	direct
28 Dec - 04 Jan	KLM
27 Dec - 03 Jan	easyJet	direct
28 Dec - 04 Jan	easyJet	direct

Also check the deals for one-way flights from Southampton 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 Southampton to Geneva in December from 142€

Return flights