Cheapest return flights from London to Keflavik in October from $183

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 October 2025 (see full year).

Return flights

01 Oct - 07 Oct Icelandair direct
07 Oct - 15 Oct Icelandair direct
01 Oct - 04 Oct Icelandair direct
01 Oct - 15 Oct Icelandair direct
05 Oct - 15 Oct Icelandair direct
01 Oct - 14 Oct Icelandair direct
07 Oct - 14 Oct Icelandair direct
29 Oct - 05 Nov Icelandair direct
31 Oct - 04 Nov Icelandair direct
30 Oct - 04 Nov Icelandair direct
31 Oct - 05 Nov Icelandair direct
28 Oct - 05 Nov Icelandair direct
28 Oct - 08 Nov Icelandair direct
29 Oct - 08 Nov Icelandair direct
13 Oct - 18 Oct Icelandair direct
28 Oct - 04 Nov Icelandair direct
30 Oct - 05 Nov Icelandair direct
01 Oct - 08 Oct Icelandair direct
01 Oct - 05 Oct Icelandair direct
26 Oct - 04 Nov Icelandair direct

Also check the deals for one-way 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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