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

Return flights

09 Apr - 14 Apr	Scandinavian Airlines
09 Apr - 16 Apr	Scandinavian Airlines
09 Apr - 12 Apr	Scandinavian Airlines
09 Apr - 14 Apr	Icelandair	direct
07 Apr - 11 Apr	Icelandair	direct
13 Apr - 17 Apr	Ryanair
05 Apr - 09 Apr	Ryanair
09 Apr - 12 Apr	Icelandair	direct
05 Apr - 09 Apr	Icelandair	direct
06 Apr - 10 Apr	Icelandair	direct

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

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 Dublin to Keflavik in April from 153€

Return flights