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

Return flights

04 Dec - 09 Dec	easyJet
01 Dec - 07 Dec	easyJet
17 Dec - 21 Dec	easyJet
05 Dec - 08 Dec	easyJet
15 Dec - 20 Dec	easyJet
18 Dec - 22 Dec	easyJet
16 Dec - 20 Dec	easyJet
20 Dec - 29 Dec	easyJet
13 Dec - 20 Dec	easyJet
28 Dec - 07 Jan	easyJet
22 Dec - 26 Dec	easyJet
27 Dec - 07 Jan	easyJet
26 Dec - 07 Jan	Wizz Air
25 Dec - 02 Jan	Wizz Air
29 Dec - 02 Jan	Wizz Air
30 Dec - 04 Jan	easyJet
27 Dec - 03 Jan	easyJet

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Basel to Keflavik in December from 152€

Return flights