Cheapest return flights from London to Keflavik in May from 161€

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

Return flights

02 May - 03 May British Airways direct
09 May - 12 May British Airways direct
05 May - 12 May British Airways direct
06 May - 12 May British Airways direct
03 May - 06 May British Airways direct
10 May - 12 May British Airways direct
02 May - 06 May British Airways direct
08 May - 12 May Icelandair direct
13 May - 19 May Icelandair direct
30 May - 03 Jun Icelandair
09 May - 13 May British Airways direct
28 May - 03 Jun Icelandair
30 May - 02 Jun Icelandair
28 May - 02 Jun Icelandair
29 May - 02 Jun Icelandair
31 May - 03 Jun British Airways
30 May - 03 Jun Icelandair direct
30 May - 06 Jun Icelandair direct
30 May - 02 Jun Icelandair direct
28 May - 02 Jun Icelandair direct

Also check the deals for one-way flights from London to Keflavik in May.

Powered by

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.