Cheapest return flights from Dublin to Keflavik in October 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 October 2025 (see full year).

Return flights

09 Oct - 14 Oct Fly Play direct
03 Oct - 10 Oct Fly Play direct
03 Oct - 07 Oct Fly Play direct
10 Oct - 14 Oct Fly Play direct
04 Oct - 08 Oct Fly Play direct
03 Oct - 05 Oct Fly Play direct
08 Oct - 15 Oct Fly Play direct
02 Oct - 09 Oct Fly Play direct
02 Oct - 06 Oct Fly Play direct
02 Oct - 05 Oct Fly Play direct
28 Oct - 11 Nov Icelandair direct
29 Oct - 01 Nov Icelandair direct
30 Oct - 02 Nov Icelandair direct
25 Oct - 08 Nov Ryanair
25 Oct - 08 Nov Icelandair direct
25 Oct - 02 Nov Icelandair direct

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

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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