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

Return flights

04 Aug - 11 Aug	KLM
29 Aug - 05 Sep	KLM
13 Aug - 19 Aug	KLM
14 Aug - 18 Aug	KLM
22 Aug - 25 Aug	KLM
04 Aug - 08 Aug	KLM
23 Aug - 30 Aug	KLM
24 Aug - 31 Aug	easyJet
25 Aug - 01 Sep	KLM
22 Aug - 30 Aug	KLM
29 Aug - 31 Aug	KLM
14 Aug - 17 Aug	KLM

Also check the deals for one-way flights from Southampton to Geneva in August.

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 August from $244

Return flights