Cheapest one-way flights from London to Keflavik in May from $110

AirHint found the following cheapest one-way flights from London (LHR) to Keflavik (KEF) in May 2026 (see full year).

One-Way flights

06 May Icelandair direct
15 May British Airways direct
11 May British Airways direct
07 May Scandinavian Airlines
07 May British Airways direct
05 May Icelandair direct
26 May Scandinavian Airlines
12 May British Airways
26 May Icelandair direct
12 May Icelandair direct

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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