Cheapest one-way flights from London to Keflavik in December from 79€

AirHint found the following cheapest one-way flights from London (LHR) to Keflavik (KEF) in December 2025 (see full year).

One-Way flights

08 Dec Icelandair direct
02 Dec Icelandair direct
14 Dec Icelandair direct
11 Dec Icelandair direct
15 Dec Icelandair direct
12 Dec Icelandair direct
01 Dec British Airways direct
16 Dec Icelandair direct
30 Dec Icelandair direct
23 Dec Icelandair direct

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

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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