Cheapest return flights from London to Keflavik in October from $193

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

Return flights

30 Oct - 06 Nov British Airways direct
23 Oct - 10 Nov Scandinavian Airlines
31 Oct - 06 Nov British Airways direct
29 Oct - 08 Nov Icelandair direct
30 Oct - 03 Nov British Airways direct
23 Oct - 30 Oct Scandinavian Airlines
14 Oct - 18 Oct Scandinavian Airlines
15 Oct - 22 Oct Icelandair
13 Oct - 18 Oct Icelandair
31 Oct - 03 Nov Icelandair
25 Oct - 30 Oct Scandinavian Airlines
11 Oct - 18 Oct Icelandair
31 Oct - 08 Nov Icelandair direct
30 Oct - 08 Nov Icelandair direct
31 Oct - 04 Nov Icelandair direct
07 Oct - 10 Oct Scandinavian Airlines
31 Oct - 03 Nov British Airways direct
14 Oct - 16 Oct Scandinavian Airlines
09 Oct - 16 Oct Scandinavian Airlines
14 Oct - 21 Oct SWISS

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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