AirHint found the following cheapest return flights from London (LCY) to Keflavik (KEF) in November 2025 (see full year).

Return flights

27 Nov - 01 Dec	KLM
27 Nov - 04 Dec	KLM
27 Nov - 07 Dec	KLM
26 Nov - 03 Dec	KLM
26 Nov - 01 Dec	KLM
23 Nov - 31 Dec	LOT
28 Nov - 02 Dec	Lufthansa
28 Nov - 03 Dec	SWISS
27 Nov - 30 Nov	KLM
28 Nov - 01 Dec	KLM
27 Nov - 06 Dec	Lufthansa
26 Nov - 30 Nov	KLM
23 Nov - 26 Nov	LOT
23 Nov - 27 Nov	LOT
20 Nov - 27 Nov	KLM
18 Nov - 27 Nov	LOT
24 Nov - 26 Nov	KLM
28 Nov - 30 Nov	SWISS
21 Nov - 24 Nov	SWISS
16 Nov - 19 Nov	LOT

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

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 November from 289€

Return flights