Cheapest one-way flights from Dublin to Keflavik in December from $92

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

One-Way flights

06 Dec Aer Lingus
04 Dec Scandinavian Airlines
19 Dec Ryanair
04 Dec Icelandair direct
06 Dec Icelandair direct
26 Dec Ryanair
26 Dec Icelandair direct
19 Dec Icelandair direct
27 Dec Scandinavian Airlines
27 Dec Icelandair direct

Also check the deals for return 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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