AirHint found the following cheapest one-way flights from London (LCY) to Keflavik (KEF) in May 2026 (see full year).
One-Way flights
| 28 May | KLM | ||
| 10 May | KLM | ||
| 07 May | KLM | ||
| 13 May | KLM | ||
| 14 May | KLM | ||
| 24 May | KLM | ||
| 03 May | KLM | ||
| 20 May | KLM | ||
| 17 May | KLM | ||
| 01 May | SWISS |
Also check the deals for return flights from London to Keflavik in May.
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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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