AirHint found the following cheapest return flights from London (LCY) to Keflavik (KEF) in February 2026 (see full year).

Return flights

23 Feb - 26 Feb	KLM
24 Feb - 04 Mar	SWISS
22 Feb - 25 Feb	LOT
26 Feb - 05 Mar	KLM
24 Feb - 01 Mar	KLM
27 Feb - 03 Mar	SWISS
23 Feb - 25 Feb	KLM
25 Feb - 03 Mar	KLM
24 Feb - 25 Feb	KLM
25 Feb - 04 Mar	KLM
21 Feb - 06 Mar	SWISS
12 Feb - 15 Feb	KLM
23 Feb - 02 Mar	SWISS
24 Feb - 03 Mar	KLM
21 Feb - 04 Mar	SWISS
05 Feb - 10 Feb	Lufthansa
21 Feb - 25 Feb	KLM
08 Feb - 10 Feb	SWISS
08 Feb - 11 Feb	SWISS
20 Feb - 28 Feb	SWISS

Also check the deals for one-way flights from London to Keflavik in February.

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 London to Keflavik in February from $500

Return flights