Cheapest return flights from Dublin to Keflavik in December from $172

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 December 2025 (see full year).

Return flights

05 Dec - 07 Dec Fly Play direct
14 Dec - 18 Dec Fly Play direct
19 Dec - 28 Dec Fly Play direct
19 Dec - 29 Dec Fly Play direct
11 Dec - 20 Dec Fly Play direct
20 Dec - 28 Dec Fly Play direct
20 Dec - 29 Dec Fly Play direct
21 Dec - 28 Dec Fly Play direct
21 Dec - 29 Dec Fly Play direct
20 Dec - 27 Dec Fly Play direct
28 Dec - 02 Jan Fly Play direct
27 Dec - 03 Jan Fly Play direct
28 Dec - 03 Jan Fly Play direct
26 Dec - 03 Jan Fly Play direct
28 Dec - 31 Jan Scandinavian Airlines

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

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.

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