Cheapest return flights from London to Keflavik in September from 123€

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

Return flights

28 Sep - 12 Oct easyJet direct
14 Sep - 24 Sep easyJet direct
23 Sep - 01 Oct easyJet
07 Sep - 17 Sep easyJet direct
14 Sep - 17 Sep easyJet direct
28 Sep - 04 Oct easyJet
24 Sep - 08 Oct easyJet
28 Sep - 28 Sep easyJet
03 Sep - 17 Sep easyJet direct
24 Sep - 01 Oct easyJet direct
10 Sep - 17 Sep easyJet direct
30 Sep - 05 Oct Wizz Air
30 Sep - 07 Oct Wizz Air
30 Sep - 08 Oct Wizz Air
16 Sep - 01 Oct easyJet
29 Sep - 04 Oct Wizz Air
24 Sep - 30 Sep Wizz Air
14 Sep - 18 Sep easyJet
24 Sep - 28 Sep Wizz Air
13 Sep - 16 Sep Wizz Air

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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