Cheapest one-way flights from London to Keflavik in May from 145€

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 May 2025 (see full year).

One-Way flights

09 May British Airways
11 May British Airways
18 May British Airways
01 May British Airways
07 May British Airways
22 May British Airways
21 May British Airways
27 May British Airways
20 May British Airways
30 May LOT

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

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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