Cheapest return flights from London to Keflavik in October from $209

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

Return flights

30 Oct - 07 Nov Icelandair direct
16 Oct - 20 Oct Scandinavian Airlines
23 Oct - 30 Oct Scandinavian Airlines
25 Oct - 29 Oct Scandinavian Airlines
02 Oct - 08 Oct Scandinavian Airlines
16 Oct - 25 Oct Scandinavian Airlines
27 Oct - 06 Nov Scandinavian Airlines
27 Oct - 03 Nov Scandinavian Airlines
31 Oct - 10 Nov Icelandair direct
27 Oct - 07 Nov Icelandair direct
23 Oct - 26 Oct Scandinavian Airlines
02 Oct - 09 Oct Icelandair direct
27 Oct - 06 Nov Icelandair direct
30 Oct - 06 Nov Icelandair direct
22 Oct - 29 Oct Scandinavian Airlines
27 Oct - 29 Oct Scandinavian Airlines
22 Oct - 25 Oct Scandinavian Airlines
25 Oct - 09 Nov Scandinavian Airlines
29 Oct - 04 Nov Icelandair direct
30 Oct - 05 Nov Icelandair direct

Also check the deals for one-way 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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