Cheapest return flights from London to Keflavik in May from 147€

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

Return flights

08 May - 10 May British Airways direct
05 May - 08 May British Airways direct
02 May - 06 May British Airways direct
02 May - 10 May British Airways direct
16 May - 26 May British Airways direct
07 May - 10 May British Airways direct
08 May - 11 May British Airways direct
19 May - 26 May British Airways direct
10 May - 12 May British Airways direct
07 May - 14 May British Airways direct
25 May - 10 Jun Icelandair
28 May - 01 Jun Icelandair direct
29 May - 02 Jun Icelandair
24 May - 01 Jun Icelandair direct
25 May - 06 Jun Icelandair direct
30 May - 04 Jun Icelandair direct
21 May - 02 Jun Scandinavian Airlines
31 May - 06 Jun Icelandair direct
31 May - 07 Jun Icelandair direct
29 May - 02 Jun Icelandair direct

Also check the deals for one-way 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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