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

Return flights

19 Aug - 24 Aug	Wizz Air
27 Aug - 04 Sep	Wizz Air
30 Aug - 03 Sep	Wizz Air
29 Aug - 07 Sep	Fly Play
06 Aug - 10 Aug	Wizz Air
27 Aug - 04 Sep	Icelandair	direct
29 Aug - 07 Sep	Icelandair	direct
06 Aug - 17 Aug	Wizz Air
03 Aug - 10 Aug	Wizz Air
08 Aug - 11 Aug	Scandinavian Airlines
30 Aug - 03 Sep	Icelandair	direct
17 Aug - 07 Sep	Vueling Airlines
19 Aug - 24 Aug	Icelandair	direct
06 Aug - 17 Aug	Icelandair	direct
10 Aug - 17 Aug	Vueling Airlines
03 Aug - 17 Aug	Vueling Airlines
03 Aug - 10 Aug	Icelandair	direct

Also check the deals for one-way flights from Keflavik to Stockholm 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 Keflavik to Stockholm in August from 217€

Return flights