Cheapest return flights from London to Keflavik in January from $142

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

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

Return flights

13 Jan - 16 Jan British Airways direct
25 Jan - 30 Jan British Airways direct
10 Jan - 16 Jan British Airways direct
07 Jan - 13 Jan British Airways direct
14 Jan - 18 Jan British Airways direct
18 Jan - 21 Jan British Airways direct
26 Jan - 29 Jan British Airways direct
05 Jan - 09 Jan British Airways direct
20 Jan - 01 Feb British Airways direct
19 Jan - 21 Jan British Airways direct
03 Jan - 09 Jan British Airways direct
23 Jan - 07 Feb British Airways direct
29 Jan - 03 Feb Icelandair direct
15 Jan - 03 Feb Scandinavian Airlines

Also check the deals for one-way flights from London to Keflavik in January.

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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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