AirHint found the following cheapest one-way flights from London (LCY) to Keflavik (KEF) in September 2026 (see full year).
One-Way flights
| 20 Sep | KLM | ||
| 06 Sep | KLM | ||
| 08 Sep | ITA Airways | ||
| 03 Sep | KLM | ||
| 24 Sep | KLM | ||
| 02 Sep | SWISS | ||
| 10 Sep | KLM | ||
| 01 Sep | KLM | ||
| 25 Sep | LOT | ||
| 18 Sep | LOT |
Also check the deals for return flights from London to Keflavik in September.
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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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