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

Return flights

11 Sep - 17 Sep	easyJet	direct
15 Sep - 22 Sep	easyJet	direct
19 Sep - 21 Sep	Ryanair
27 Sep - 03 Oct	easyJet
19 Sep - 21 Sep	easyJet	direct
03 Sep - 06 Sep	easyJet
02 Sep - 07 Sep	transavia
27 Sep - 03 Oct	easyJet	direct
03 Sep - 06 Sep	easyJet	direct
02 Sep - 07 Sep	easyJet	direct

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

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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Cheapest return flights from Keffallinia to London in September from $170

Return flights