AirHint found the following cheapest one-way flights from London (LGW) to Keflavik (KEF) in October 2025 (see full year).

One-Way flights

13 Oct	easyJet	direct
15 Oct	Norwegian
08 Oct	Wizz Air Malta
09 Oct	Wizz Air Malta
11 Oct	Wizz Air Malta
31 Oct	easyJet	direct
29 Oct	easyJet	direct
06 Oct	easyJet	direct
12 Oct	Wizz Air Malta
22 Oct	Norwegian

Also check the deals for return flights from London to Keflavik in October.

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 one-way flights from London to Keflavik in October from 57€

One-Way flights