Cheapest return flights from London to Keflavik in May from 174€

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

Return flights

05 May - 08 May British Airways direct
12 May - 15 May British Airways direct
05 May - 15 May British Airways direct
05 May - 16 May British Airways direct
12 May - 16 May British Airways direct
08 May - 16 May British Airways direct
21 May - 28 May Scandinavian Airlines
30 May - 05 Jun Icelandair
20 May - 28 May Icelandair
11 May - 15 May Icelandair
02 May - 07 May Icelandair
28 May - 05 Jun Scandinavian Airlines
28 May - 02 Jun Scandinavian Airlines
28 May - 04 Jun Scandinavian Airlines
30 May - 02 Jun Icelandair
10 May - 05 Jun British Airways
29 May - 02 Jun Scandinavian Airlines
28 May - 02 Jun Icelandair direct
30 May - 02 Jun Icelandair direct
26 May - 01 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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