Cheapest one-way flights from London to Keflavik in October from $84

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

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

One-Way flights

21 Oct easyJet
31 Oct easyJet direct
25 Oct easyJet
07 Oct Norwegian
15 Oct Norwegian
27 Oct Wizz Air Malta
08 Oct Norwegian
18 Oct easyJet
05 Oct easyJet
01 Oct Norwegian

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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