Cheapest one-way flights from Dublin to Keflavik in September from $85

AirHint found the following cheapest one-way flights from Dublin (DUB) to Keflavik (KEF) in September 2025 (see full year).

One-Way flights

04 Sep Scandinavian Airlines
02 Sep Scandinavian Airlines
03 Sep Scandinavian Airlines
27 Sep Scandinavian Airlines
29 Sep Scandinavian Airlines
26 Sep Ryanair
19 Sep Scandinavian Airlines
28 Sep Scandinavian Airlines
19 Sep Fly Play direct
02 Sep Fly Play direct

Also check the deals for return flights from Dublin to Keflavik in September.

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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