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

Return flights

27 Aug - 10 Sep	Ryanair	direct
27 Aug - 03 Sep	Ryanair	direct
28 Aug - 08 Sep	TUI	direct
24 Aug - 03 Sep	Jet2	direct
28 Aug - 10 Sep	Ryanair
31 Aug - 08 Sep	Jet2	direct
28 Aug - 03 Sep	TUI	direct
27 Aug - 06 Sep	Ryanair	direct
29 Aug - 08 Sep	Ryanair
25 Aug - 03 Sep	Jet2	direct
24 Aug - 27 Aug	Jet2	direct
25 Aug - 27 Aug	Jet2	direct
24 Aug - 26 Aug	Jet2
23 Aug - 24 Aug	Jet2	direct
24 Aug - 24 Aug	Jet2
25 Aug - 26 Aug	Jet2
27 Aug - 30 Aug	Ryanair
21 Aug - 28 Aug	TUI
22 Aug - 27 Aug	Jet2
25 Aug - 28 Aug	Jet2

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

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 London to Keffallinia in August from $96

Return flights