Cheapest one-way flights from London to Keflavik in October from $144

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

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

One-Way flights

27 Oct ITA Airways
05 Oct British Airways
19 Oct British Airways
16 Oct British Airways
02 Oct British Airways
17 Oct British Airways
06 Oct British Airways
01 Oct British Airways
08 Oct British Airways
30 Oct British Airways

Also check the deals for return 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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