AirHint found the following cheapest return flights from Keflavik (KEF) to Dublin (DUB) in January 2026 (see full year).

Return flights

14 Jan - 21 Jan	easyJet
31 Jan - 03 Feb	easyJet
17 Jan - 20 Jan	easyJet
08 Jan - 15 Jan	Wizz Air
11 Jan - 18 Jan	Wizz Air
12 Jan - 19 Jan	Wizz Air
23 Jan - 26 Jan	easyJet
09 Jan - 16 Jan	Wizz Air
29 Jan - 01 Feb	Jet2
19 Jan - 26 Jan	easyJet
31 Jan - 03 Feb	Icelandair	direct
29 Jan - 01 Feb	Icelandair	direct
14 Jan - 21 Jan	Icelandair	direct
19 Jan - 26 Jan	Icelandair	direct

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

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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Cheapest return flights from Keflavik to Dublin in January from 149€

Return flights