Cheapest return flights from London to Keflavik in May from $188

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

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

Return flights

28 May - 29 May easyJet
28 May - 03 Jun easyJet direct
29 May - 03 Jun Fly Play direct
28 May - 11 Jun easyJet
28 May - 30 May easyJet
28 May - 05 Jun easyJet
28 May - 04 Jun easyJet
28 May - 02 Jun easyJet direct
23 May - 24 May Fly Play direct
28 May - 11 Jun easyJet direct
23 May - 25 May Fly Play direct
29 May - 30 May Scandinavian Airlines
28 May - 04 Jun easyJet direct
28 May - 09 Jun easyJet
29 May - 05 Jun Fly Play direct
27 May - 29 May Scandinavian Airlines
28 May - 31 May Fly Play direct
27 May - 30 May Ryanair
29 May - 30 May Fly Play direct
29 May - 31 May Fly Play direct

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

Skyscanner

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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