Cheapest one-way flights from London to Keflavik in September from 99€

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

One-Way flights

15 Sep British Airways direct
03 Sep British Airways direct
02 Sep British Airways direct
29 Sep British Airways direct
22 Sep British Airways direct
27 Sep British Airways direct
23 Sep British Airways direct
19 Sep British Airways direct
30 Sep British Airways direct
13 Sep British Airways direct

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

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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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