Cheapest return flights from London to Keflavik in May from $167

Best time to book flights for London (LGW) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from London (LGW) to Keflavik (KEF) in May 2025 (see full year).

Return flights

04 May - 10 May easyJet
13 May - 17 May easyJet
15 May - 24 May Icelandair direct
10 May - 15 May Icelandair direct
03 May - 10 May easyJet
03 May - 17 May easyJet
09 May - 17 May easyJet
16 May - 19 May easyJet
08 May - 15 May Icelandair direct
10 May - 14 May Icelandair direct
29 May - 03 Jun Icelandair direct
31 May - 07 Jun easyJet
29 May - 05 Jun Icelandair direct
31 May - 03 Jun Icelandair direct
31 May - 07 Jun Icelandair direct
30 May - 03 Jun Icelandair direct
31 May - 08 Jun Icelandair direct
19 May - 15 Jun Vueling Airlines
31 May - 06 Jun easyJet
28 May - 04 Jun easyJet

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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