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

Return flights

09 Dec - 08 Jan	easyJet
09 Dec - 13 Dec	easyJet
10 Dec - 13 Dec	easyJet
01 Dec - 05 Dec	Wizz Air
04 Dec - 07 Dec	easyJet
11 Dec - 15 Dec	easyJet
08 Dec - 13 Dec	easyJet
24 Dec - 31 Dec	Wizz Air
19 Dec - 24 Dec	Wizz Air
22 Dec - 30 Dec	Wizz Air
22 Dec - 29 Dec	Wizz Air
24 Dec - 01 Jan	Wizz Air
26 Dec - 06 Jan	Wizz Air
25 Dec - 01 Jan	KLM
26 Dec - 04 Jan	Wizz Air
28 Dec - 05 Jan	Wizz Air
27 Dec - 09 Jan	easyJet
30 Dec - 04 Jan	easyJet
26 Dec - 03 Jan	easyJet
26 Dec - 02 Jan	Wizz Air

Also check the deals for one-way flights from Basel 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 Basel to Keflavik in December from 162€

Return flights