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

Return flights

09 Mar - 12 Mar	Icelandair	direct
07 Mar - 10 Mar	Icelandair	direct
06 Mar - 12 Mar	Icelandair	direct
24 Mar - 29 Mar	Scandinavian Airlines
24 Mar - 29 Mar	Icelandair	direct
13 Mar - 17 Mar	Transavia France
19 Mar - 22 Mar	Icelandair	direct
30 Mar - 02 Apr	Icelandair	direct
24 Mar - 01 Apr	Scandinavian Airlines
31 Mar - 03 Apr	Scandinavian Airlines
24 Mar - 01 Apr	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 192€

Return flights