Cheapest return LCY–KEF flights, August

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

Return flights

28 Aug - 02 Sep British Airways
23 Aug - 30 Aug KLM
26 Aug - 03 Sep KLM
12 Aug - 31 Aug KLM
26 Aug - 04 Sep KLM
04 Aug - 12 Aug British Airways
14 Aug - 19 Aug British Airways
12 Aug - 19 Aug KLM
21 Aug - 26 Aug British Airways
03 Aug - 06 Aug SWISS
26 Aug - 28 Aug KLM
29 Aug - 31 Aug KLM
25 Aug - 28 Aug KLM
24 Aug - 01 Sep SWISS

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

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