Cheapest return LCY–KEF flights, July

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

Return flights

01 Jul - 06 Jul SWISS
31 Jul - 12 Aug British Airways
10 Jul - 15 Jul British Airways
01 Jul - 07 Jul SWISS
24 Jul - 29 Jul British Airways
31 Jul - 05 Aug British Airways
03 Jul - 08 Jul British Airways
08 Jul - 15 Jul KLM
15 Jul - 21 Jul SWISS
29 Jul - 05 Aug KLM
29 Jul - 11 Aug SWISS
29 Jul - 12 Aug KLM
20 Jul - 22 Jul British Airways
13 Jul - 15 Jul KLM
03 Jul - 13 Jul KLM
28 Jul - 11 Aug British Airways
30 Jul - 05 Aug KLM
28 Jul - 07 Aug British Airways
31 Jul - 03 Aug KLM
29 Jul - 07 Aug KLM

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

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