Cheapest return flights from London to Keflavik in May from 148€

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

Return flights

09 May - 20 May Icelandair direct
20 May - 28 May Icelandair direct
02 May - 14 May Icelandair direct
05 May - 13 May Icelandair direct
16 May - 21 May Icelandair direct
16 May - 19 May Icelandair direct
16 May - 20 May Icelandair direct
02 May - 05 May Icelandair direct
03 May - 06 May Icelandair direct
03 May - 07 May Icelandair direct
27 May - 02 Jun Icelandair
26 May - 02 Jun Icelandair
29 May - 02 Jun Icelandair
30 May - 11 Jun Icelandair direct
31 May - 11 Jun Icelandair direct
29 May - 03 Jun easyJet
31 May - 04 Jun Icelandair direct
26 May - 02 Jun Icelandair direct
29 May - 07 Jun Icelandair direct
27 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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