Cheapest return flights from Dublin to Keflavik in August from $190

Best time to book flights for Dublin (DUB) to Keflavik (KEF) flights at AirHint

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

Return flights

28 Aug - 01 Sep Fly Play direct
14 Aug - 24 Aug Fly Play direct
16 Aug - 23 Aug Fly Play direct
21 Aug - 30 Aug Fly Play direct
21 Aug - 26 Aug Fly Play direct
21 Aug - 27 Aug Fly Play direct
09 Aug - 23 Aug Fly Play direct
23 Aug - 30 Aug Fly Play direct
09 Aug - 12 Aug Fly Play direct
20 Aug - 27 Aug Fly Play direct
17 Aug - 24 Aug Fly Play direct
25 Aug - 02 Sep Ryanair
29 Aug - 01 Sep Ryanair
24 Aug - 07 Sep Vueling Airlines

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

Skyscanner

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik