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

Return flights

25 Aug - 31 Aug	easyJet
25 Aug - 27 Aug	easyJet
06 Aug - 13 Aug	KLM
05 Aug - 12 Aug	KLM
04 Aug - 08 Aug	KLM
11 Aug - 15 Aug	KLM
15 Aug - 17 Aug	KLM
24 Aug - 27 Aug	easyJet
04 Aug - 07 Aug	KLM
30 Aug - 06 Sep	KLM
18 Aug - 22 Aug	easyJet

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 187€

Return flights