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

Return flights

21 Aug - 24 Aug	TUI	direct
21 Aug - 28 Aug	TUI	direct
21 Aug - 25 Aug	TUI	direct
23 Aug - 27 Aug	Jet2	direct
27 Aug - 17 Sep	Ryanair	direct
24 Aug - 28 Aug	Jet2	direct
27 Aug - 13 Sep	Ryanair	direct
27 Aug - 10 Sep	Ryanair	direct
24 Aug - 29 Aug	Jet2
23 Aug - 30 Aug	Jet2
23 Aug - 25 Aug	Jet2	direct
20 Aug - 21 Aug	Jet2	direct
27 Aug - 03 Sep	Ryanair	direct
23 Aug - 30 Aug	Jet2	direct
23 Aug - 13 Sep	Ryanair	direct
23 Aug - 10 Sep	Ryanair	direct
27 Aug - 06 Sep	Ryanair	direct
28 Aug - 19 Sep	Smart Wings
23 Aug - 03 Sep	Ryanair	direct
29 Aug - 02 Sep	Ryanair

Also check the deals for one-way flights from Keffallinia to London 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 Keffallinia to London in August from $170

Return flights