Cheapest return DUB–KEF flights, April

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

Return flights

23 Apr - 28 Apr Aer Lingus
22 Apr - 26 Apr Ryanair
22 Apr - 29 Apr Ryanair
20 Apr - 27 Apr Ryanair
24 Apr - 27 Apr Ryanair
25 Apr - 27 Apr Ryanair
21 Apr - 26 Apr Ryanair
24 Apr - 28 Apr Ryanair
23 Apr - 30 Apr Aer Lingus
23 Apr - 24 Apr Aer Lingus
29 Apr - 09 May Ryanair
30 Apr - 09 May Ryanair
30 Apr - 02 May Ryanair
30 Apr - 02 May Icelandair direct

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

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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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