Cheapest return flights from London to Keflavik in September from 199€

AirHint found the following cheapest return flights from London (LGW) to Keflavik (KEF) in September 2026 (see full year).

Return flights

12 Sep - 15 Sep Norwegian
30 Sep - 05 Oct Icelandair direct
27 Sep - 01 Oct Icelandair direct
23 Sep - 30 Sep Icelandair direct
25 Sep - 29 Sep Icelandair direct
16 Sep - 21 Sep Icelandair direct
14 Sep - 17 Sep Norwegian
25 Sep - 02 Oct Icelandair direct
18 Sep - 27 Sep Icelandair direct
09 Sep - 19 Sep Icelandair direct
11 Sep - 13 Sep Icelandair direct
12 Sep - 15 Sep Icelandair direct
03 Sep - 19 Sep Icelandair direct
09 Sep - 13 Oct Icelandair direct
22 Sep - 01 Oct Icelandair direct
01 Sep - 01 Oct Icelandair direct

Also check the deals for one-way 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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