AirHint found the following cheapest return flights from London (STN) to Keffallinia (EFL) in June 2026 (see full year).

Return flights

09 Jun - 13 Jun	Ryanair
25 Jun - 02 Jul	Ryanair
26 Jun - 29 Jun	Ryanair
08 Jun - 13 Jun	Jet2
24 Jun - 04 Jul	Ryanair
25 Jun - 28 Jun	Ryanair
15 Jun - 22 Jun	Jet2
13 Jun - 20 Jun	Ryanair
21 Jun - 05 Jul	Jet2
10 Jun - 24 Jun	Jet2
15 Jun - 25 Jun	Jet2
11 Jun - 18 Jun	TUI	direct
25 Jun - 02 Jul	TUI	direct
16 Jun - 23 Jun	Ryanair
18 Jun - 02 Jul	Jet2

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

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 June from $286

Return flights