Cheapest return flights from Dublin to Keflavik in May from $166

Best time to book flights for Dublin (DUB) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Dublin (DUB) to Keflavik (KEF) in May 2025 (see full year).

Return flights

12 May - 14 May Ryanair
12 May - 14 May Fly Play direct
08 May - 11 May Fly Play direct
05 May - 11 May Fly Play direct
05 May - 12 May Fly Play direct
09 May - 14 May Fly Play direct
15 May - 19 May Fly Play direct
01 May - 04 May Fly Play direct
09 May - 12 May Fly Play direct
08 May - 12 May Fly Play direct
26 May - 03 Jun Fly Play direct
28 May - 03 Jun Fly Play direct
29 May - 04 Jun Fly Play direct
29 May - 03 Jun Fly Play direct
31 May - 03 Jun Ryanair
29 May - 06 Jun Fly Play direct
26 May - 09 Jun Fly Play
30 May - 04 Jun Ryanair
30 May - 03 Jun Ryanair
26 May - 02 Jun Fly Play

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

Skyscanner

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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