Cheapest return flights from Dublin to Keflavik in December from 136€

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

Return flights

09 Dec - 13 Dec Aer Lingus
09 Dec - 12 Dec Aer Lingus
11 Dec - 12 Dec Aer Lingus
01 Dec - 05 Dec Ryanair
11 Dec - 17 Dec Aer Lingus
06 Dec - 08 Dec Ryanair
02 Dec - 06 Dec Ryanair
04 Dec - 07 Dec Icelandair direct
08 Dec - 15 Dec Aer Lingus
11 Dec - 16 Dec Aer Lingus
09 Dec - 11 Jan Aer Lingus
09 Dec - 11 Jan Icelandair direct
31 Dec - 04 Jan Aer Lingus
29 Dec - 04 Jan Scandinavian Airlines
28 Dec - 01 Jan Ryanair
29 Dec - 03 Jan Scandinavian Airlines
24 Dec - 03 Jan Icelandair direct
27 Dec - 03 Jan Scandinavian Airlines
31 Dec - 03 Jan Icelandair direct
28 Dec - 01 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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