Cheapest one-way flights from London to Keflavik in October from $115

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

One-Way flights

31 Oct Ryanair
22 Oct Ryanair
20 Oct Ryanair
23 Oct Ryanair
21 Oct Ryanair
29 Oct Jet2 direct
16 Oct Ryanair
25 Oct Ryanair
18 Oct Ryanair
14 Oct Ryanair

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

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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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