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

Return flights

15 Aug - 18 Aug	KLM
29 Aug - 05 Sep	KLM
27 Aug - 31 Aug	KLM
26 Aug - 30 Aug	KLM
23 Aug - 30 Aug	KLM
07 Aug - 11 Aug	KLM
08 Aug - 11 Aug	KLM
22 Aug - 24 Aug	KLM
11 Aug - 21 Aug	KLM
11 Aug - 13 Aug	easyJet
21 Aug - 26 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 207€

Return flights