Cheapest return flights from London to Keflavik in August from $151

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

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

Return flights

29 Aug - 07 Sep Fly Play direct
22 Aug - 04 Sep Fly Play direct
31 Aug - 05 Sep Fly Play direct
26 Aug - 01 Sep Fly Play direct
25 Aug - 01 Sep Fly Play direct
22 Aug - 24 Aug Fly Play direct
25 Aug - 02 Sep Fly Play direct
20 Aug - 24 Aug Fly Play direct
25 Aug - 31 Aug Fly Play direct
01 Aug - 03 Aug Fly Play direct
21 Aug - 24 Aug Fly Play direct
13 Aug - 19 Aug Fly Play direct
01 Aug - 02 Aug Fly Play direct
08 Aug - 11 Aug Fly Play direct
06 Aug - 13 Aug Fly Play direct
04 Aug - 07 Aug Fly Play 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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