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

Return flights

24 Sep - 30 Sep	Wizz Air
23 Sep - 01 Oct	Wizz Air
17 Sep - 01 Oct	Wizz Air
13 Sep - 17 Sep	Wizz Air
03 Sep - 10 Sep	Wizz Air
20 Sep - 30 Sep	Wizz Air
13 Sep - 23 Sep	Wizz Air
02 Sep - 16 Sep	Wizz Air
23 Sep - 30 Sep	Wizz Air
02 Sep - 10 Sep	Wizz Air
03 Sep - 17 Sep	Wizz Air
20 Sep - 23 Sep	Wizz Air
30 Sep - 07 Oct	Wizz Air
29 Sep - 12 Oct	Ryanair
26 Sep - 02 Oct	Ryanair
30 Sep - 11 Oct	Wizz Air
18 Sep - 02 Oct	Scandinavian Airlines
28 Sep - 06 Oct	Scandinavian Airlines
28 Sep - 11 Oct	Scandinavian Airlines
20 Sep - 04 Oct	Wizz Air

Also check the deals for one-way flights from Hamburg 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Hamburg to Keflavik in September from 150€

Return flights