Cheapest one-way flights from London to Keflavik in September from 96€

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

One-Way flights

04 Sep Scandinavian Airlines
24 Sep British Airways direct
11 Sep Scandinavian Airlines
18 Sep Scandinavian Airlines
16 Sep Scandinavian Airlines
12 Sep Scandinavian Airlines
20 Sep British Airways
22 Sep British Airways
01 Sep British Airways
06 Sep British Airways direct

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

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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