Cheapest return flights from London to Keflavik in August from $248

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

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

Return flights

31 Aug - 03 Sep easyJet
14 Aug - 21 Aug Icelandair direct
20 Aug - 28 Aug Icelandair direct
17 Aug - 21 Aug Icelandair direct
29 Aug - 31 Aug Icelandair direct
25 Aug - 31 Aug Icelandair direct
12 Aug - 19 Aug Icelandair direct
24 Aug - 30 Aug Icelandair direct
09 Aug - 16 Aug Icelandair direct
10 Aug - 16 Aug Icelandair direct
07 Aug - 21 Aug Icelandair direct
28 Aug - 02 Sep Icelandair direct
31 Aug - 03 Sep Icelandair direct
26 Aug - 02 Sep Icelandair direct
30 Aug - 06 Sep Icelandair direct
27 Aug - 02 Sep Icelandair direct
28 Aug - 07 Sep Icelandair direct
14 Aug - 03 Sep Icelandair direct
31 Aug - 10 Sep Icelandair direct
24 Aug - 01 Sep Icelandair direct

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

Skyscanner

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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