Cheapest return flights from London to Keflavik in August from $321

AirHint found the following cheapest return flights from London (STN) to Keflavik (KEF) in August 2026 (see full year).

Return flights

11 Aug - 13 Aug Ryanair
14 Aug - 22 Aug Ryanair
09 Aug - 18 Aug Ryanair
19 Aug - 26 Aug Ryanair
09 Aug - 15 Aug Ryanair
03 Aug - 10 Aug Ryanair
09 Aug - 21 Aug Ryanair
18 Aug - 27 Aug Ryanair
20 Aug - 27 Aug Ryanair
22 Aug - 30 Aug easyJet
31 Aug - 05 Sep Ryanair

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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