Cheapest return flights from Dublin to Keflavik in September from 171€

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

Return flights

03 Sep - 10 Sep Fly Play direct
10 Sep - 13 Sep Fly Play direct
03 Sep - 07 Sep Fly Play direct
05 Sep - 07 Sep Fly Play direct
28 Sep - 05 Oct Aer Lingus
05 Sep - 06 Sep Fly Play direct
04 Sep - 07 Sep Fly Play direct
05 Sep - 13 Sep Fly Play direct
05 Sep - 14 Sep Fly Play direct
06 Sep - 10 Sep Fly Play direct
26 Sep - 29 Sep Fly Play direct
28 Sep - 03 Oct Ryanair
27 Sep - 04 Oct Fly Play direct
28 Sep - 04 Oct Fly Play direct
26 Sep - 04 Oct Fly Play direct
28 Sep - 02 Oct Fly Play
22 Sep - 02 Oct Transavia France
26 Sep - 01 Oct Ryanair
29 Sep - 02 Oct Ryanair
23 Sep - 07 Oct Ryanair

Also check the deals for one-way 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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