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

Return flights

10 Dec - 17 Dec	AirAsia
31 Dec - 09 Jan	AirAsia
15 Dec - 23 Dec	Emirates
03 Dec - 07 Dec	British Airways
12 Dec - 17 Dec	Etihad Airways
16 Dec - 24 Dec	British Airways
07 Dec - 14 Dec	KLM
06 Dec - 15 Dec	KLM
30 Dec - 09 Jan	Qatar Airways
24 Dec - 05 Jan	KLM
17 Dec - 23 Dec	Etihad Airways
20 Dec - 27 Dec	Emirates
19 Dec - 26 Dec	Etihad Airways
26 Dec - 04 Jan	British Airways
30 Dec - 04 Jan	KLM
21 Dec - 03 Jan	British Airways
22 Dec - 03 Jan	British Airways
20 Dec - 03 Jan	British Airways

Also check the deals for one-way flights from Kuala Lumpur 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 Kuala Lumpur to Keflavik in December from $924

Return flights