AirHint found the following cheapest return flights from Dublin (DUB) to Keflavik (KEF) in August 2026 (see full year).

Return flights

21 Aug - 24 Aug	Scandinavian Airlines
26 Aug - 31 Aug	Scandinavian Airlines
21 Aug - 25 Aug	Scandinavian Airlines
26 Aug - 31 Aug	Icelandair	direct
16 Aug - 30 Aug	Icelandair	direct
02 Aug - 09 Aug	Icelandair	direct
01 Aug - 08 Aug	Icelandair	direct
22 Aug - 30 Aug	Scandinavian Airlines
21 Aug - 25 Aug	Icelandair	direct
21 Aug - 24 Aug	Icelandair	direct

Also check the deals for one-way flights from Dublin 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 Dublin to Keflavik in August from 208€

Return flights