Cheapest return flights from Dublin to Keflavik in December from 185€

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

Return flights

04 Dec - 09 Dec Scandinavian Airlines
08 Dec - 12 Dec Scandinavian Airlines
09 Dec - 12 Dec Scandinavian Airlines
01 Dec - 07 Dec Scandinavian Airlines
06 Dec - 11 Dec Icelandair direct
01 Dec - 07 Dec Icelandair direct
10 Dec - 23 Dec Icelandair direct
05 Dec - 07 Dec Lufthansa
23 Dec - 27 Dec Icelandair direct
06 Dec - 07 Dec Icelandair direct
29 Dec - 01 Jan Icelandair direct
31 Dec - 04 Jan Icelandair direct
30 Dec - 03 Jan Icelandair direct
30 Dec - 04 Jan Icelandair direct
20 Dec - 02 Jan Icelandair direct
27 Dec - 04 Jan Icelandair direct
27 Dec - 03 Jan Icelandair direct

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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