Cheapest return flights from London to Keflavik in September from 165€

Best time to book flights for London (LGW) to Keflavik (KEF) flights at AirHint

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

Return flights

02 Sep - 09 Sep Norwegian
27 Sep - 07 Oct easyJet
27 Sep - 08 Oct easyJet
23 Sep - 30 Sep Norwegian
30 Sep - 07 Oct Norwegian
21 Sep - 30 Sep Norwegian
27 Sep - 09 Oct Wizz Air Malta
28 Sep - 08 Oct easyJet
24 Sep - 02 Oct easyJet
16 Sep - 22 Sep easyJet
17 Sep - 01 Oct easyJet
14 Sep - 17 Sep easyJet
03 Sep - 10 Sep easyJet
13 Sep - 18 Sep Norwegian
29 Sep - 05 Oct Norwegian
29 Sep - 06 Oct Icelandair direct
24 Sep - 02 Oct Icelandair direct
15 Sep - 24 Sep Norwegian
12 Sep - 26 Sep Icelandair direct
05 Sep - 13 Sep Icelandair direct

Also check the deals for one-way flights from London to Keflavik in September.

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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