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

Return flights

29 Sep - 06 Oct	Wizz Air UK
27 Sep - 05 Oct	Wizz Air
15 Sep - 21 Sep	Wizz Air UK
04 Sep - 11 Sep	Air Serbia
04 Sep - 13 Sep	Air Serbia
04 Sep - 12 Sep	Air Serbia
19 Sep - 26 Sep	Wizz Air UK
12 Sep - 19 Sep	Wizz Air UK
21 Sep - 27 Sep	Wizz Air

Also check the deals for one-way flights from Larnaca 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 Larnaca to Keflavik in September from 243€

Return flights