Cheapest return LON–KEF flights, May

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

Return flights

31 May - 13 Jun easyJet direct
31 May - 15 Jun easyJet direct
27 May - 13 Jun easyJet direct
27 May - 15 Jun easyJet direct
31 May - 26 Jun easyJet direct
31 May - 19 Jun easyJet direct
09 May - 18 May Wizz Air Malta
13 May - 19 May easyJet
06 May - 12 May Ryanair
09 May - 12 May British Airways direct
12 May - 15 May Ryanair
12 May - 14 May Ryanair
12 May - 18 May Ryanair
05 May - 06 May Ryanair
05 May - 18 May Ryanair
09 May - 17 May Wizz Air Malta
27 May - 19 Jun easyJet direct
31 May - 05 Jun easyJet
31 May - 29 Jun easyJet direct
30 May - 05 Jun Icelandair

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

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