Cheapest return flights from London to Keflavik in August from 121€

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

Return flights

30 Aug - 10 Sep Fly Play direct
30 Aug - 08 Sep Fly Play direct
29 Aug - 07 Sep Fly Play direct
30 Aug - 07 Sep Fly Play direct
30 Aug - 03 Sep Fly Play direct
27 Aug - 10 Sep Fly Play direct
28 Aug - 03 Sep Fly Play direct
28 Aug - 07 Sep Fly Play direct
29 Aug - 05 Sep Fly Play direct
30 Aug - 06 Sep Fly Play direct
30 Aug - 31 Aug Fly Play direct
29 Aug - 31 Aug Fly Play direct
28 Aug - 31 Aug Fly Play direct
27 Aug - 31 Aug Fly Play direct
28 Aug - 30 Aug Fly Play direct
28 Aug - 29 Aug Fly Play direct
25 Aug - 27 Aug Ryanair
27 Aug - 30 Aug Ryanair
26 Aug - 31 Aug Fly Play direct
27 Aug - 29 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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Feel free to contact us with any feedback or request another flight research.