Cheapest one-way flights from London to Keflavik in December from $112

AirHint found the following cheapest one-way flights from London (LHR) to Keflavik (KEF) in December 2026 (see full year).

One-Way flights

04 Dec British Airways direct
03 Dec British Airways direct
05 Dec British Airways direct
11 Dec British Airways direct
17 Dec Scandinavian Airlines
20 Dec Icelandair direct
27 Dec Lufthansa

Also check the deals for return flights from London to Keflavik in December.

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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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