Cheapest return flights from London to Keflavik in October from 323€

Best time to book flights for London (LCY) to Keflavik (KEF) flights at AirHint

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

Return flights

10 Oct - 14 Oct ITA Airways
20 Oct - 27 Oct Lufthansa
14 Oct - 21 Oct SWISS
20 Oct - 25 Oct Lufthansa
06 Oct - 09 Oct KLM
20 Oct - 23 Oct Lufthansa
22 Oct - 25 Oct Lufthansa
06 Oct - 17 Oct KLM
01 Oct - 10 Oct KLM
01 Oct - 09 Oct KLM
20 Oct - 02 Nov Lufthansa
08 Oct - 11 Nov KLM
28 Oct - 02 Nov KLM
27 Oct - 02 Nov KLM
31 Oct - 04 Nov KLM
26 Oct - 01 Nov SWISS
26 Oct - 02 Nov KLM
23 Oct - 05 Nov KLM

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

Skyscanner

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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