Cheapest return flights from London to Keflavik in August from $193

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

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

Return flights

28 Aug - 10 Sep Scandinavian Airlines
21 Aug - 27 Aug Scandinavian Airlines
21 Aug - 03 Sep Scandinavian Airlines
20 Aug - 26 Aug Scandinavian Airlines
24 Aug - 28 Aug British Airways direct
24 Aug - 27 Aug British Airways
21 Aug - 02 Sep Scandinavian Airlines
24 Aug - 26 Aug British Airways
18 Aug - 20 Aug Scandinavian Airlines
29 Aug - 05 Sep Scandinavian Airlines
20 Aug - 03 Sep Scandinavian Airlines
21 Aug - 26 Aug Scandinavian Airlines
31 Aug - 07 Sep British Airways direct
24 Aug - 03 Sep British Airways direct
22 Aug - 27 Aug Scandinavian Airlines
29 Aug - 06 Sep Scandinavian Airlines
25 Aug - 06 Sep Scandinavian Airlines
24 Aug - 29 Aug British Airways direct
28 Aug - 10 Sep British Airways direct
22 Aug - 27 Aug Icelandair direct

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

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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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