Cheapest return flights from Dublin to Keflavik in December from 166€

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

Return flights

11 Dec - 15 Dec Aer Lingus
15 Dec - 18 Dec Aer Lingus
06 Dec - 09 Dec Aer Lingus
15 Dec - 20 Dec Ryanair
10 Dec - 14 Dec Scandinavian Airlines
04 Dec - 08 Dec Ryanair
08 Dec - 11 Dec Aer Lingus
01 Dec - 06 Dec Aer Lingus
06 Dec - 08 Dec Ryanair
12 Dec - 15 Dec Transavia France
31 Dec - 06 Jan Icelandair direct
31 Dec - 05 Jan Icelandair direct
15 Dec - 07 Jan Icelandair direct
23 Dec - 01 Jan Icelandair direct
31 Dec - 03 Jan Icelandair direct
14 Dec - 01 Jan British Airways
14 Dec - 01 Jan Icelandair direct
27 Dec - 01 Jan Icelandair direct
30 Dec - 05 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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