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

Return flights

10 Sep - 17 Sep	Ryanair
25 Sep - 10 Oct	Ryanair
18 Sep - 24 Sep	Ryanair
16 Sep - 24 Sep	Ryanair
04 Sep - 08 Sep	Ryanair
04 Sep - 15 Sep	Ryanair
04 Sep - 10 Sep	Ryanair
10 Sep - 15 Sep	Ryanair
30 Sep - 10 Oct	Ryanair
01 Sep - 08 Sep	Ryanair
04 Sep - 14 Sep	Ryanair
17 Sep - 25 Sep	Ryanair
30 Sep - 12 Oct	Ryanair
25 Sep - 04 Oct	Ryanair
25 Sep - 05 Oct	Ryanair
24 Sep - 03 Oct	Wizz Air Malta
21 Sep - 02 Oct	Ryanair
24 Sep - 08 Oct	Wizz Air Malta
29 Sep - 06 Oct	Ryanair
24 Sep - 04 Oct	Wizz Air Malta

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

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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Cheapest return flights from Hahn to Keflavik in September from $234

Return flights