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

Return flights

26 Aug - 02 Sep	Scandinavian Airlines
28 Aug - 03 Sep	Scandinavian Airlines
28 Aug - 04 Sep	Scandinavian Airlines
28 Aug - 02 Sep	easyJet
29 Aug - 03 Sep	easyJet
24 Aug - 02 Sep	easyJet
20 Aug - 03 Sep	easyJet
26 Aug - 14 Sep	Lufthansa
21 Aug - 04 Sep	easyJet
24 Aug - 28 Aug	easyJet
22 Aug - 27 Aug	easyJet
22 Aug - 25 Aug	easyJet
07 Aug - 11 Aug	SWISS
06 Aug - 13 Aug	Scandinavian Airlines
24 Aug - 26 Aug	easyJet
21 Aug - 24 Aug	easyJet
11 Aug - 12 Aug	easyJet
10 Aug - 17 Aug	Scandinavian Airlines
23 Aug - 25 Aug	Aer Lingus
19 Aug - 01 Sep	easyJet

Also check the deals for one-way flights from Geneva to Keflavik 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 Geneva to Keflavik in August from 221€

Return flights