Cheapest one-way flights from London to Keflavik in May from 78€

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
09 May Icelandair direct
04 May Icelandair direct
08 May Icelandair direct
03 May Icelandair direct
07 May British Airways direct
29 May British Airways direct
31 May British Airways 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.