Cheapest return flights from Dublin to Keflavik in September from $250

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

Return flights

08 Sep - 14 Sep Ryanair
08 Sep - 15 Sep Ryanair
08 Sep - 12 Sep Ryanair
08 Sep - 12 Sep Icelandair direct
08 Sep - 13 Sep Icelandair direct
08 Sep - 14 Sep Icelandair direct
08 Sep - 15 Sep Icelandair direct
02 Sep - 16 Sep SWISS
09 Sep - 16 Sep SWISS
23 Sep - 03 Oct Icelandair direct
24 Sep - 01 Oct Icelandair direct
03 Sep - 06 Sep Icelandair direct
29 Sep - 15 Oct Icelandair direct
28 Sep - 15 Oct Icelandair direct
28 Sep - 05 Oct Icelandair direct

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

Powered by

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

Feel free to contact us with any feedback or request another flight research.