Cheapest return flights from Dublin to Keflavik in May from $169

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

21 May - 23 May Fly Play direct
09 May - 12 May Fly Play direct
07 May - 15 May Fly Play direct
09 May - 14 May Fly Play direct
23 May - 28 May Fly Play direct
21 May - 25 May Fly Play direct
22 May - 25 May Fly Play direct
23 May - 25 May Fly Play direct
22 May - 04 Jun Fly Play direct
23 May - 04 Jun Fly Play direct
23 May - 03 Jun Fly Play direct
22 May - 03 Jun Fly Play direct
01 May - 08 May Fly Play direct
01 May - 11 May Fly Play direct
29 May - 03 Jun Fly Play direct
28 May - 03 Jun Ryanair
27 May - 03 Jun Ryanair
30 May - 03 Jun Ryanair
28 May - 03 Jun Fly Play direct
29 May - 01 Jun Fly Play direct

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik