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

Return flights

21 Oct - 28 Oct	easyJet
09 Oct - 15 Oct	easyJet
12 Oct - 22 Oct	easyJet
24 Oct - 28 Oct	Iberia
09 Oct - 12 Oct	easyJet
19 Oct - 26 Oct	Vueling Airlines
04 Oct - 08 Oct	Ryanair
11 Oct - 14 Oct	Vueling Airlines
23 Oct - 02 Nov	Ryanair
11 Oct - 15 Oct	easyJet
18 Oct - 26 Oct	Ryanair
22 Oct - 02 Nov	Vueling Airlines
31 Oct - 04 Nov	Wizz Air
22 Oct - 01 Nov	Ryanair
26 Oct - 02 Nov	Ryanair
25 Oct - 01 Nov	Iberia
28 Oct - 01 Nov	Iberia
21 Oct - 01 Nov	Air Europa
22 Oct - 01 Nov	Fly Play	direct
25 Oct - 01 Nov	Fly Play	direct

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

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 Alicante to Keflavik in October from 170€

Return flights