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

Return flights

12 Jun - 14 Jun	Ryanair
02 Jun - 10 Jun	Ryanair
24 Jun - 12 Jul	Ryanair
11 Jun - 16 Jun	Lufthansa
04 Jun - 08 Jun	KLM
30 Jun - 05 Jul	Ryanair
04 Jun - 14 Jun	KLM
05 Jun - 09 Jun	Ryanair
10 Jun - 13 Jun	Ryanair
02 Jun - 12 Jun	Icelandair	direct
01 Jun - 07 Jun	Icelandair	direct
12 Jun - 15 Jun	Ryanair
30 Jun - 05 Jul	Icelandair	direct
27 Jun - 10 Jul	Ryanair
24 Jun - 12 Jul	Icelandair	direct
29 Jun - 03 Jul	SWISS
29 Jun - 04 Jul	Icelandair	direct
29 Jun - 03 Jul	Icelandair	direct

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

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 June from 216€

Return flights