AirHint found the following cheapest return flights from Alicante (ALC) to Keflavik (KEF) in August 2025 (see full year).

Return flights

29 Aug - 02 Sep	Fly Play
28 Aug - 04 Sep	KLM
29 Aug - 08 Sep	Fly Play
30 Aug - 06 Sep	Fly Play
28 Aug - 31 Aug	KLM
28 Aug - 01 Sep	KLM
26 Aug - 06 Sep	Ryanair
29 Aug - 01 Sep	Fly Play
30 Aug - 01 Sep	Fly Play
29 Aug - 31 Aug	Fly Play
30 Aug - 04 Sep	Fly Play
25 Aug - 31 Aug	KLM
26 Aug - 01 Sep	Ryanair
25 Aug - 28 Aug	Air Europa
29 Aug - 30 Aug	Fly Play
21 Aug - 23 Aug	Finnair
27 Aug - 31 Aug	Ryanair
20 Aug - 23 Aug	Vueling Airlines
22 Aug - 31 Aug	Air Europa
19 Aug - 27 Aug	Finnair

Also check the deals for one-way flights from Alicante to Keflavik in August.

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 Alicante to Keflavik in August from $299

Return flights