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

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

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
18 Sep Scandinavian Airlines
16 Sep Ryanair
23 Sep Scandinavian Airlines
25 Sep Norwegian
16 Sep Fly Play direct
18 Sep Fly Play direct
04 Sep Fly Play direct
25 Sep Fly Play direct
23 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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