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

Return flights

03 Dec - 08 Dec	British Airways
12 Dec - 24 Dec	Etihad Airways
08 Dec - 15 Dec	Etihad Airways
10 Dec - 24 Dec	British Airways
27 Dec - 30 Dec	British Airways
22 Dec - 30 Dec	British Airways
01 Dec - 11 Dec	British Airways
10 Dec - 26 Dec	KLM
03 Dec - 26 Dec	KLM
22 Dec - 31 Dec	Etihad Airways
20 Dec - 01 Jan	Etihad Airways
27 Dec - 04 Jan	Etihad Airways
30 Dec - 04 Jan	Emirates
24 Dec - 05 Jan	KLM
24 Dec - 03 Jan	Qatar Airways
19 Dec - 03 Jan	Emirates

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 843€

Return flights