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

Return flights

02 Mar - 06 Mar	Icelandair	direct
12 Mar - 17 Mar	Icelandair	direct
23 Mar - 26 Mar	Icelandair	direct
13 Mar - 17 Mar	Aer Lingus
09 Mar - 13 Mar	Icelandair	direct
13 Mar - 17 Mar	Icelandair	direct
20 Mar - 25 Mar	Icelandair	direct

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

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 March from 206€

Return flights