Cheapest one-way flights from London to Keflavik in September from $87

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 September 2025 (see full year).

One-Way flights

27 Sep Wizz Air Malta
10 Sep Wizz Air Malta
09 Sep easyJet
30 Sep easyJet
13 Sep easyJet
12 Sep easyJet
01 Sep Vueling Airlines
26 Sep easyJet
28 Sep easyJet
29 Sep easyJet

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

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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