Cheapest one-way flights from London to Keflavik in October from $117

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

One-Way flights

25 Oct Scandinavian Airlines
23 Oct Scandinavian Airlines
31 Oct British Airways
20 Oct Scandinavian Airlines
06 Oct Scandinavian Airlines
27 Oct British Airways
02 Oct Scandinavian Airlines
01 Oct British Airways
28 Oct Scandinavian Airlines
18 Oct British Airways

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

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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