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

Return flights

31 Jul - 07 Aug	Scandinavian Airlines
28 Jul - 31 Jul	Ethiopian Airlines
30 Jul - 07 Aug	Scandinavian Airlines
28 Jul - 30 Jul	Scandinavian Airlines
28 Jul - 01 Aug	Scandinavian Airlines
30 Jul - 06 Aug	Icelandair	direct
27 Jul - 10 Aug	Vueling Airlines
28 Jul - 01 Aug	Icelandair	direct
28 Jul - 31 Jul	Icelandair	direct
30 Jul - 07 Aug	Icelandair	direct
31 Jul - 07 Aug	Icelandair	direct
28 Jul - 30 Jul	Icelandair	direct

Also check the deals for one-way flights from Stockholm 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 Stockholm to Keflavik in July from 334€

Return flights