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

Return flights

02 Dec - 05 Dec	easyJet
09 Dec - 16 Dec	easyJet
08 Dec - 15 Dec	easyJet
23 Dec - 01 Jan	easyJet
31 Dec - 03 Jan	easyJet
13 Dec - 20 Dec	easyJet
31 Dec - 04 Jan	Ryanair
18 Dec - 20 Dec	easyJet
23 Dec - 26 Dec	easyJet
24 Dec - 01 Jan	Vueling Airlines
16 Dec - 20 Dec	easyJet
18 Dec - 22 Dec	easyJet
30 Dec - 02 Jan	easyJet
20 Dec - 23 Dec	easyJet
20 Dec - 26 Dec	Ryanair
26 Dec - 01 Jan	easyJet
26 Dec - 03 Jan	easyJet
27 Dec - 03 Jan	Scandinavian Airlines
26 Dec - 02 Jan	Ryanair
30 Dec - 02 Jan	Icelandair	direct

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

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 December from 160€

Return flights