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

Return flights

30 Jul - 06 Aug	SWISS
28 Jul - 31 Jul	SWISS
27 Jul - 28 Jul	Scandinavian Airlines
27 Jul - 29 Jul	SWISS
28 Jul - 01 Aug	SWISS
31 Jul - 07 Aug	SWISS
27 Jul - 07 Aug	SWISS
31 Jul - 03 Aug	SWISS
26 Jul - 03 Aug	SWISS
31 Jul - 08 Aug	SWISS
31 Jul - 02 Aug	SWISS
26 Jul - 28 Jul	SWISS
29 Jul - 06 Aug	easyJet
31 Jul - 04 Aug	SWISS
26 Jul - 27 Jul	easyJet
27 Jul - 29 Jul	Icelandair	direct

Also check the deals for one-way flights from Geneva to Keflavik in July.

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 July from 404€

Return flights