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

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

Return flights

06 Sep - 16 Sep easyJet direct
06 Sep - 23 Sep easyJet direct
16 Sep - 23 Sep easyJet direct
13 Sep - 16 Sep easyJet direct
23 Sep - 01 Oct easyJet direct
09 Sep - 16 Sep easyJet direct
16 Sep - 07 Oct easyJet direct
06 Sep - 09 Sep easyJet direct
06 Sep - 13 Sep easyJet direct
02 Sep - 16 Sep easyJet direct
02 Sep - 23 Sep easyJet direct
27 Sep - 05 Oct easyJet direct
27 Sep - 08 Oct easyJet direct
16 Sep - 18 Oct easyJet direct
16 Sep - 22 Sep easyJet
23 Sep - 07 Oct easyJet direct
30 Sep - 07 Oct easyJet direct
16 Sep - 11 Oct easyJet direct
16 Sep - 21 Oct easyJet direct
23 Sep - 18 Oct easyJet 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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