Cheapest return flights from London to Keflavik in July from $415

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

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

Return flights

30 Jul - 07 Aug SWISS
04 Jul - 08 Jul SWISS
04 Jul - 17 Jul SWISS
02 Jul - 07 Jul SWISS
21 Jul - 27 Jul SWISS
11 Jul - 15 Jul Lufthansa
21 Jul - 25 Jul SWISS
03 Jul - 07 Jul SWISS
24 Jul - 27 Jul SWISS
31 Jul - 21 Aug SWISS
04 Jul - 11 Jul SWISS
28 Jul - 04 Aug SWISS
18 Jul - 25 Jul SWISS
25 Jul - 08 Aug SWISS
31 Jul - 22 Aug SWISS
29 Jul - 08 Aug Lufthansa
31 Jul - 03 Aug SWISS
26 Jul - 01 Aug SWISS
28 Jul - 20 Aug British Airways
28 Jul - 01 Aug British Airways

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

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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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